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Updated: 8 hours 2 min ago

Caribbean Emergency Weather Net Activates; FEMA Announces Interoperability Nets

Mon, 09/18/2017 - 18:34

Jeff Austin, 9Y4J, Emergency Coordinator Advisory Group, IARU Region 2, Area E, reports that the Caribbean Emergency Weather Net (CEWN), activated at 1030 UTC on 3.815 MHz. The net will use 3.815 and/or 7.188 MHz as propagation dictates. The CEWN will provide 24-hour coverage during the passage of Hurricane Maria and in the storm’s immediate wake, in case there is a need to pass health-and-welfare traffic.

The Federal Emergency Management Agency (FEMA) will activate 60-meter interoperability nets on September 19 for Hurricane Maria. These and will remain active until the storm has passed and the need for these nets no longer exists.

These FEMA stations, including call signs, could be monitoring and/or conducting interoperable nets on the 5-MHz/60-meter band frequencies in support of Hurricane Maria:

Region 1         KF1EMA

Region 2         KF2EMA (includes Puerto Rico and US Virgin Islands)

Region 3         KF3EMA

Region 4         KF4EMA

Maynard MERS          NF1EMA

Frederick MERS         NF3EMA

Thomasville MERS    NF4EMA 

The frequencies to be used are Channel 1, 5.331 MHz (primary voice traffic) and Channel 2, 5.346.5 MHz (digital traffic).

The FEMA point of contact is Dave Adsit, KG4BIR, FEMA Spectrum Manager — (540) 272-4605.

Source:ARRL

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IARU Administrative Council Considers New Radio Spectrum Pollution Threat

Mon, 09/18/2017 - 11:18

The Administrative Council (AC) of the International Amateur Radio Union (IARU) believes high-power wireless power transfer (WPT) for electric vehicles has significant potential for interference with radio communication. That assessment came as the AC met on September 15 and 16 in Landshut, Germany, immediately prior to the IARU Region 1 Conference, to review its priorities and positions with regard to the 2019 World Radiocommunication Conference (WRC-19). Conference Agenda Item 9.1.6 would call for studies in advance of WRC-23 to assess the impact of WPT for electric vehicles on radiocommunication services and to study suitable harmonized frequency ranges to minimize its impact. The AC determined that addressing the threat requires an increased commitment of resources by potentially affected radiocommunication services, including Amateur Radio.

The WPT issue came up earlier this month at the meeting of CEPT WRC Project Team D, held in Vilnius, Lithuania, the week of September 11. At that gathering, IARU addressed the impact of spurious emissions from proposed high-power WPT systems for electric vehicles. IARU has expressed concern that current spurious emissions limits are not fit for this purpose in residential environments, and the potential impact on both Amateur Radio and broadcast reception is severe.

As the ITU explained in its August 2016 report, “Applications of wireless power transmission via radio frequency beam,” WPT technology is considered a game-changer. “We will be able to become free from lacking electric power when electric power will be supplied wirelessly,” the report said. WPT vehicle applications typically use frequencies in the LF and MF range.

In other matters, the AC reviewed the results of its first year following a “matrix approach” to WRC preparation. The matrix approach is designed to ensure effective coordination among the IARU volunteers who are participating in and monitoring the preparatory meetings of the ITU and regional telecommunications organizations. In addition to WPT, the WRC-19 agenda includes several other items of potential concern to radio amateurs and a possible allocation in Region 1 of 50–54 MHz to the Amateur Service to harmonize with the allocations in the other two International Telecommunication Union (ITU) regions.

Delegates reviewed and updated the strategic plan to develop support for amateur spectrum allocations in 2016–2020, and they approved action plan for the remainder of 2017 and 2018. They also reviewed and adopted the IARU 2018–2020 budget, based upon anticipated financial contributions from the IARU International Secretariat and the three regional organizations. The budget adopted reflects ongoing efforts to minimize expenses.

Regional representatives on the AC reported progress in their areas, including the successful Amateur Radio Administration Course, a course attended by administrators from several Latin American countries that was offered earlier this year in Mexico City.

Delegates initiated the consultative process between the International Secretariat and the AC, leading to the nomination of the candidates for IARU President and Vice President for the 5-year term beginning in 2019. Member societies will have the opportunity to put forth candidates in early 2018. They also noted progress toward improving the consistency of IARU “branding” and approved a plan for achieving consistent design across the global and regional IARU websites.

Other Business

  • Tore Worren, LA9QL, was appointed as EMC Coordinator, replacing Thilo Kootz, DL9KCE, who has had to step down because of a change in employment.
  • The AC received an interim report from the Working Group on Propagation. The group is studying developments in technology related to radio propagation observations.
  • An extensive review of AC resolutions and policies was conducted, leading to the suppression of obsolete resolutions and the updating of other resolutions and policies.
  • Progress toward the registration of the IARU as a corporate entity was reviewed, and further steps were authorized.
  • The theme for the next World Amateur Radio Day, April 18, 2018, was confirmed as “Celebrating Amateur Radio’s Contribution to Society.” An effort will be made to share material among member societies to assist them in observing the day.
  • The AC also approved a transition from paper to electronic certificates for participants in the IARU HF Championship.

The AC is responsible for the policy and management of the IARU. It consists of the three IARU international officers and two representatives from each of the three IARU regional organizations.

Attending the meeting were IARU President Tim Ellam, VE6SH/G4HUA; Vice President Ole Garpestad, LA2RR; Secretary David Sumner, K1ZZ; regional representatives Don Beattie, G3BJ; Faisal Al-Ajmi, 9K2RR; Reinaldo Leandro, YV5AM; Ramón Santoyo, XE1KK; Gopal Madhavan, VU2GMN, and Peter Young, VK3MV. Dave Court, EI3IO, from Region 1 was present as an observer on the second day of the meeting.

The AC won’t meet again in person until next September, but virtual meetings will be conducted by teleconference as needed in the interim.

Source:ARRL

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Amateur Radio Community Goes on Alert for Maria

Mon, 09/18/2017 - 10:24

Caribbean Island residents and the Amateur Radio community have hardly had a chance to catch a breath from Hurricane Irma as recovery operations continue, but now Hurricane Maria is knocking on the door. The Hurricane Watch Net (HWN) activated today on 14.325 MHz, with plans to maintain operations on that frequency during the day and on 7.268 MHz after dark.

“As propagation dictates, we may operate using both frequencies at the same time,” HWN Secretary Stan Broadway, N8BHL, said in making the announcement.

The VoIP Hurricane Net will activate today at 1500 UTC until further notice, to track Hurricane Maria and its potential impact to the Leeward Islands. WX4NHC, the Amateur Radio Station at the National Hurricane Center, will activate at 2100 UTC.

Maxim Memorial Station W1AW at ARRL Headquarters is monitoring the HWN, 60-meter interoperability channel 2, and Winlink for any traffic.

As of 1200 UTC, Hurricane Maria was about 85 miles east of Martinique and some 120 miles east-southeast of Dominica, with maximum sustain winds of 110 MPH. It’s moving west-northwest at 12 MPH. “Hurricane conditions are first expected within portions of the Leeward Islands by late today, with tropical storm conditions beginning during the next several hours,” the National Hurricane Center said. Heavy rainfall and storm surges are likely.

A Category 2 storm, Hurricane Maria is expected to affect the Leeward Islands this afternoon and this evening, tracking toward the US Virgin Islands and Puerto Rico later on Tuesday and Wednesday, with possible tropical storm conditions on some of the northern Leeward Islands during the day on Tuesday.

The International Salvation Army Team Emergency Radio Network (SATERN) SSB net will go to Delta II (extended monitoring) status on Tuesday at 1400 UTC on 14.265 MHz to support Caribbean residents as Hurricane Maria passes through. The net will remain in session until 2300 UTC. National SATERN Liaison Bill Feist, WB8BZH, said a decision will be made later in the week as to whether the Net will continue to be activated at a Delta II status.

“Hurricane Maria is a significant threat to many islands in the Caribbean that were devastated by Hurricane Irma just last week,” Feist said in announcing the SATERN plans.

At this point, it’s not clear that Hurricane Maria will be a threat to the US, although some computer models indicate that this is likely.

Hurricane Jose, now in the Atlantic Ocean, does not appear set for landfall along the East Coast, but its effects are anticipated in the form of tropical-force winds and heavy surf along the shore, especially the New England coastline.

Feist encouraged SATERN members to keep an ear on the Hurricane Watch Net.

Meanwhile, members of Argentina’s Yaguarete DX Group, who were expected to be active as PJ7T from Sint Maarten October 24 through November 4, have cancelled their plans due to the damage done by Hurricane Irma.

“Hurricane Irma destroyed 95% of infrastructure on the island, and it will be impossible to arrive and live there for a long time,” the group said in its announcement. It has changed the destination for its fall DXpedition to San Andres Island and is in the process of working out the formalities.

Source:ARRL

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FlexRadio Systems Maestro

Mon, 09/18/2017 - 09:06

The FlexRadio Maestro™ is an intuitive, plug-and-play control console that directs the operation of any FLEX-6000 Signature Series transceiver without needing a traditional PC. Whether you are the most serious contest operator, DX chaser, rag chewer, or you just love to “play radio,” Maestro is fun and easy to operate. Maestro harmoniously combines a high definition 8-inch touch display in concert with ergonomically designed controls to enhance ease of use and maximize workflow efficiency in virtually any SmartSDR™ application.

Maestro places the most frequently used radio controls directly at your fingertips. Controls are labeled for intuitive operation and designed to minimize hand motion for the most common operations. Occasionally used controls are easily accessible on the large touch screen display bypassing the complexity of multi-function buttons and multi-level menus found on most transceivers. FlexRadio continues to set the standard for high resolution, real-time spectral display in amateur radio transceivers with Maestro, extending that same “HD visual radio” capability from the PC based SmartSDR for Windows™ to the 8-inch touch screen format. Like modern phones and tablets, capacitive touch control is provided on the large LCD display for intuitive pan, zoom, tune, and menu operation.

Ever wish you could monitor the bands or work DX from the comfort of your living room or out on the patio? Its sleek, lightweight design makes it easy to carry, pack or go mobile. Off the shelf VESA and VESA to RAM® adapters provide a wealth of mounting options. An optional battery pack with WiFi connectivity even lets you operate completely untethered. Just connect Maestro using WiFi, through your local area network (LAN) or directly to any FLEX-6300, FLEX-6500 or FLEX-6700 transceiver and you are ready to operate.

  • Controls any FLEX-6000 Signature Series SDR – no PC needed!
  • Familiar and intuitive interface for most operating styles
  • Optimal workflow for contest/DX operation
  • Integrated Wifi for portable operation within the LAN
  • 8-inch HD touch screen display
  • Full SmartSDR Compatibility
  • Real-time spectrum display and waterfall
  • Up to 2 simultaneous band displays
  • Large ergonomic slice (VFO) A/B tuning controls
  • Integrated Winkeyer 3
  • Quick touch for critical tuning operations
  • Independent A/B Pass Band Tuning, AGC-T, and audio controls
  • Easy access to secondary on-screen touch menus
  • Includes a standard 30 degree viewing angle fixed angle stand
  • Ready for remote operation with SmartSDR v2.0
Communications Interfaces
  • WiFi: Dual-band 2×2 802.11a/b/g/n
  • Ethernet: 10/100 Mbps
  • Bluetooth®: Version 4.0
Input/Output
  • Microphone 1: Pseudo-balanced 8-pin RJ-45, dynamic or electret compatible (Same “Yaesu type” pinout as FLEX-1500 and FLEX-3000)
  • Microphone 2: Pseudo-balanced ⅛” (3.5mm) TRS, dynamic or electret compatible
  • Microphone Impedance: 600 Ohms Nominal (200-10kΩ)
  • Headphone: Stereo headphone jack, 1/8″ (3.5mm) TRS
  • Headphone Impedance: 16 Ohm at 25 mW, 32 Ohms at 13 mW with THD+N: 0.02%
  • Speaker: Internal 2W mono speaker
  • Powered Speaker Output: Stereo consumer line level or powered speaker output, 1/8″ (3.5mm) TRS
  • Line Output: Stereo consumer line level or powered speaker output, 1/8″ (3.5mm) TRS
  • Line Out/Powered Speaker Output Impedance: 600 Ohm, stereo unbalanced
  • Line Input: Pseudo-balanced Line in jack, 1/8″ (3.5mm) TRS
  • Line In, Impedance Level: >20k Ohm
  • Key/Paddle Input: 1/8″ (3.5mm) TRS
  • PTT Input: 1/8″ (3.5mm) TS
  • DC Power Connector: Coaxial DC power connector, 2.1mm (AC power supply and power cable included)

Display/Touch Screen
  • Display Type: Large 8.0″ In Plane Switching (IPS) display with 10-point touch
  • Display Resolution: HD (WXGA 1280 x 800) display resolution
Electrical
  • Power: 10-15 VDC
  • AC Power Supply: AC adapter with cord (included)
  • Battery: Optional Lithium-ion battery (see requirements below)
Mounting Capabilities
  • Stand: Standard included 30 degree tilt desk stand for optimal viewing
  • Feet: Optional removable constant torque tilt hinge feet
  • Display Mounting: Optional VESA MIS (100mm)
  • RAM® Mount: Optional mounts available
Mechanical
  • Height:1 6.75″ (17.1 cm)
  • Width:1 14″ (35.6 cm)
  • Dept:1 1.75″ (4.5 cm)
  • Weight: Approximately 4 lbs. (1.8 kgs)

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Battery Requirements
  • Maximum Battery Size: 3″W (7.62 cm) x 6″L (15.24 cm) x 0.75″D (1.91 cm)
  • Power Connector: USB-A female
  • Recommended Current Supply: 2.5A at 5V DC output
  • Auto Start: Preferred feature – initiate start on introduction of a load
Options
  • Tilt hinge feet (constant torque)
  • Spare Wall mount AC adapter (US & International)
  • Spare DC power cable with 2.1mm barrel connector and pigtails
  • FlexRadio FHM-1 hand mic with RJ45 connector
  • Mic conversion cable for FMH-1-8P (8-pin Foster) to RJ45
  • Stylish FlexRadio branded soft side canvas travel case

FAQ

What is Maestro?
Maestro is a completely new type of control console for the FLEX-6000 Signature Series transceivers. It is a plug-and-play solution designed for optimal workflow in a small, lightweight, wired or wireless package. Just turn it on and play radio from anywhere within your home network. With the future SmartSDR v2.0 release, you will even be able to use Maestro to access your station over the Internet.

Is Maestro an amateur radio?
No. Maestro is a station control console for the FLEX-6000 series that is designed to work either with the FLEX-6300, FLEX-6500, FLEX-6700 or FLEX-6700R radios. All FLEX-6000 Series radios function as SDR-servers. Maestro is an SDR-client device that provides total control of the SDR-server over Internet protocol just as SmartSDR does running on a PC.

Which radios can be used with Maestro?
Maestro works with all radios in the FLEX-6000 Signature Series family.

Can I use Maestro with a FLEX-1500, FLEX-3000 or FLEX-5000?
No. These radios use a totally different architecture from the FLEX-6000 Series radios and are not upward compatible with Maestro.

Does Maestro require a PC in order to operate?
No. Maestro is a complete control unit that removes the need for a dedicated PC. Think of Maestro as an SDR-Client with physical controls like knobs, buttons, and LED indicators as well as an HD touch spectral display.

Will Maestro operate remotely over my LAN?
Yes. Maestro provides both wired Ethernet and Wi-Fi support that allows you to operate anywhere within your local area network. This could be in your shack, in the living room, or out on the patio.

Will Maestro work remote over a WAN?
Yes. This feature will be supported with SmartSDR version 2.0 for the FLEX-6000 Signature Series.

Can I use Maestro to drive SmartSDR on a PC?
Yes. This option will be available in a future software release. It will allow full-size spectral displays (panadapters) to be rendered on the PC screen while Maestro provides extended touch controls in place of panadapters on its display. The SmartSDR for Windows control mode will be mutually exclusive with panadapter and slice display on Maestro.

Can I use more than one Maestro to control a single radio?
Not initially. This is currently planned for a future software release.

Can I use the panadapters on both a PC and Maestro at the same time?
Not initially. This is currently planned for a future software release.

Can I use it mobile?
We have not done testing in a mobile environment. However, Maestro can be directly wired over Ethernet to any FLEX-6000 radio powered from a car battery in the control surface mode. This is an “at your own risk” use case and FlexRadio Systems or its affiliates are not liable for any accidents or incidents that may occur while operating while in this environment.

Does Maestro have LTE or 3G connectivity?
No. Maestro has dual band Wi-Fi and wired Ethernet connectivity.

Can I connect Bluetooth devices, like headsets, keyboards, speakers, etc. to Maestro?
Bluetooth device support on Maestro is still being tested. This feature may or may not be enabled on the initial release of the product. Once Bluetooth connectivity is supported we will carry recommended and tested accessory devices in the on-line store .

Will you be able to re-assign functions to the small knobs and function keys?
The function keys will be assignable but the knobs are all dedicated to their defined functions.

Will Maestro have a USB port for adding a USB headset?
No. Maestro does not support external USB devices.

Will Maestro have support for Bluetooth peripherals such as a keyboard, mouse or headset?
Yes. We plan to qualify and offer Bluetooth peripherals. The exact products and timing are yet to be determined.

Will QSK be supported for paddles connected to the key jack?
In the initial product, Maestro will work with non-QSK CW only. Future software releases may support QSK CW.

How does Maestro integrate with logging programs?
Logging programs will integrate with the FLEX-6000 through either SmartSDR CAT (installed with SmartSDR for Windows on the PC you will use for logging) or the SmartSDR API (which may be used on any computer including OS X, Linux, Windows or other operating systems). For PC loggers, you will need to install SmartSDR CAT on the PC to provide digital communication between the logging program and the FLEX-6X00. Both Maestro and SmartSDR CAT operate as clients to the FLEX-6X00.

How do I operate digital modes using Maestro?
Digital modes may interface to the SmartSDR DAX program (installed with SmartSDR for Windows on your PC), through the direct digital interfaces in the radio using the SmartSDR API or using Line-In and Line-Out on Maestro. DAX provides a digital communications channel directly between the digital mode software and your FLEX-6X00.

Can I attach an external display to Maestro?
No. Maestro does not support an external monitor connection.

How is software licensing handled on Maestro?
Maestro software licensing is tied to each individual FLEX-6000 radio and will track software licensing of the radio to which it is connected. There is no separate software license fee for Maestro.

How is the SmartSDR for Maestro software updated and does it require a PC to support the update?
Maestro will check the Internet for software updates automatically. When updates are detected, Maestro will offer updates which may be installed at that time or postponed to a later date. Multiple version of SmartSDR for Maestro will be stored to allow for conveniently running a previous software version.

What standard items are items are included with Maestro?
Included with the Maestro are the following standard items:

  • A 30 degree tilt desk stand
  • One 6 foot DC power power cable with 2.5mm coaxial power connector and pigtails
  • An AC power supply
  • One 7 foot Ethernet CAT5 cable
  • One 1/4 inch TRS jack to 1/8 inch TRS plug adapter
  • Maestro Quick Start Guide

What does it cost?
The MSRP for Maestro is $1199.00 USD.

What is the hardware warranty for Maestro?
We provide a 1-year limited warranty with each unit purchased. Details are on the Maestro product web page.

Can I buy an extended warranty or damage insurance?
We are currently not offering insurance or extended warranty. Please let us know if you would be interested in purchasing such insurance or warranty options if it were offered.

Is there a money back guarantee?
No. However, you can return the Maestro within 14 days of shipment with payment of a 15% restocking fee.

News Caribbean Emergency Weather Net Activates; FEMA Announces Interoperability Nets September 18, 2017 No comments

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Ham Radio Deluxe v6.4.0.787 is now available

Mon, 09/18/2017 - 07:16

“Folks,

Our 9th release since April is now available for download at www.Ham-Radio-Deluxe.com

Version 6.4.0.787 has 30 changes since the last release (from mid-August).

Release notes:

http://releasenotes.ham-radio-deluxe.com

Thanks all… enjoy!

Mike, WA9PIE”

 

The Ham Radio Deluxe Software Suite is the best asset you can add to your hamshack. It includes the following for ham radio operators:

  • HRD Logbook is a feature rich amateur contact log with powerful features for awards tracking, DX cluster, QSL card printing, integrated to rig control, and more; if you’re an extreme DXer, a DXCC fan, or enjoy casual DXing, Logbook is a real keeper
  • HRD Rig Control is a software program that has the appearance of being connected to a software defined radio (SDR); integrated to QSO logging
  • DM-780 is a digital modes software program that includes RTTY, PSK31, CW send/receive, and many more; integrated to QSO logging
  • HRD Rotor Control is a software program that supports most popular rotator controllers
  • HRD Satellite Tracking is a software program that makes your 2-way satellite communications much easier and includes integrated rig control

 

 

0000532[Bug] DM780 About Box build chopped (n4kit)
 0001332[Enhancement] Logbook Filter Pane Should Be Static Rather Than Dynamic (K7ZCZ)
 0001504[Bug] Filter shows empty result (Parent) (K7ZCZ)
 0001543[Bug] SRX_string Layout attribute missing (WA9PIE)
 0001855[Bug] Neither of Ctrl-V or Shift-Ins work for callsign field in logbook filter window. (K7ZCZ)
 0002034[Bug] Mapper has link to old, non-company web page (WA9PIE)
 0002064[Bug] Logbook reloads even after aborted ADIF import (K7ZCZ)
 0002066[Bug] Mode “NONE” appears in Favorite edit list twice (K7ZCZ)
 0002126[Bug] Logbook Filter shouldn’t be enabled for field if field dropdown is blank (K7ZCZ)
 0002127[Enhancement] “Logfile” tab in Logbook shows “Invalid Date Time” for some traces (K7ZCZ)
 0002128[Enhancement] Logbook filter is difficult to use (K7ZCZ)
 0002179[Bug] HRD Sattrack gives unexpected error on exit (K7ZCZ)
 0002192[Bug] Logbook: adding a new database causes NULL HDBC to be passed to ODBC (K7ZCZ)
 0002202[Bug] TS-2000 crashes Rig Controll upons switching between Main and Sub VFO (K7ZCZ)
 0002206[Bug] Logbook API Truncating Record (K7ZCZ)
 0002208[Bug] Program Options dialog has poor layout (K7ZCZ)
 0002210[Bug] poor layout in “Global Settings” page for Auto-Update (K7ZCZ)
 0002211[Bug] TS-2000 – Immediate RC Crash when starting HRD (K7ZCZ)
 0002220[Bug] Logbook: logfile view shows tons of spew about “took n milliseconds” when DX Cluster is open (K7ZCZ)
 0002221[Bug] Logbook: might crash with certain values in “Receivied” or “Sent” descriptors of QSO (K7ZCZ)
 0002228[Bug] Logbook: leaks memory from global heap for each logfile message sent from HRDInterface001 (K7ZCZ)
 0002231[Bug] STX_STRING and SRX_STRING values are not being exported properly on ADIF export (K7ZCZ)
 0002235[Bug] Logbook ALE Window ID disappears upon ALE reset (K7ZCZ)
 0002240[Bug] Adding 24th satellite craches satellite tracking app (K7ZCZ)

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How to win a VHF Contest – DR9A 2017

Sun, 09/17/2017 - 09:25

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The OB8-4M is an extremely effective, compact and innovative Yagi for the classical four bands 40, 20, 15 and 10m. It is the first trapless Yagi for t... Read more

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ParaPro EQ20B-DSP

Sat, 09/16/2017 - 13:29

The new bhi ParaPro EQ20B-DSP features a 20W modular audio power amplifier with a parametric equaliser and bhi’s latest dual Channel DSP Noise Cancelling technology.  The parametric equaliser allows any specific part of the frequency range to be selected and adjusted in strength enabling the user to shape the audio to suit their ears.  The EQ20B-DSP unit utilises the latest bhi dual channel DSP noise cancelling technology, which can handle mono or stereo signals and has an improved noise suppression algorithm that gives improved speech quality to the listener.  The processed speech is clearer and more intelligible even with weak signals and at higher noise levels. Bluetooth connectivity enables input from a Bluetooth source which effectively turns the EQ20B-DSP into a Bluetooth speaker.

Professional Grade Audio Equalisation for Amateur Radio

The EQ20B-DSP unit is housed in a quality compact ABS case measuring. It is easy to integrate with a number of different connection options available. Features include separate mono and stereo inputs for line level, headphone level and speaker level signals. The LED will flash if the input is overloaded. The outputs comprise a set of banana sockets for the left and right speakers plus a pair of RCA phono jacks for the speaker outputs. 
Important Note:  The Class D bridge output has a direct DC connection to the amplifier circuitry (i.e. no isolating capacitors) so you must not parallel the speaker outputs or ground any of the connections.  Stereo headphones can be connected from the front of the unit.

The EQ20B-DSP has two parametric channels labelled Bass and Treble with the Bass centre frequency being adjustable from 100Hz to 1kHz, whilst the Treble covers 1kHz to 10kHz. Used together, these controls provide two bands of ±10dB adjustment from 100Hz through to 10kHz. The bhi DSP Noise Filter in the is continuously variable from off (DSP bypassed) up to 40dB of noise cancellation.  

Parametric Equalisation: A parametric equaliser allows any specific part of the frequency range to be selected and adjusted in strength. The user is able to adjust these parameters to determine exactly how the equalization is applied. The most important feature of a parametric equaliser is that it allows you to select which frequency to adjust. For example, instead of having a simple mid-range adjustment as in a standard graphic equaliser which boosts or reduces a pre-set range of frequencies, you can specify exactly which frequency to boost or reduce. This gives you greater flexibility and accuracy to set the audio to suit your own hearing.

 Download bhi Product selection booklet

Features

  • Parametric equaliser lets you shape the audio to suit your hearing
  • 10W audio per channel
  • Class-D type audio amplifier for power efficiency and eliminate the need for bulky heatsinking
  • Use with mono, stereo or two separate audio channel inputs
  • 4mm banana plug or RCA phono plug audio output connections
  • bhi dual channel DSP noise cancelling technology
  • 3.5mm stereo headphone output (Class AB)
  • Easy to use controls for all functions
  • Signal input overload feature
  • 12V DC operation (2A)
  • User manual and accessory kit supplied
  • 3.5mm mono and 3.5mm stereo inputs
  • Use with your own passive speakers
  • Dims: 145mm (W) x 75mm (H) X 100mm (D)

 £299.95

https://www.bhi-ltd.com/

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SDRuno with the Griffin PowerMate ( VFO )

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In this video Mike demonstrates the Griffin PowerMate USB knob. The PowerMate is a great option for tuning the bands using SDRuno

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Optibeam OB8-4M 8 Element 4 Band

Sat, 09/16/2017 - 11:22
The OB8-4M is an extremely effective, compact and innovative Yagi for the classical four bands 40, 20, 15 and 10m. It is the first trapless Yagi for this frequency spectrum in the world with a single 50 Ohm coaxial feed and with two powerful Moxon Rectangles integrated in its design to improve performance. A mechanically brilliant power house without compromise, the next level of antenna performance!
 
  • usage of all advantages of the 2 element loaded Moxon Yagi for 40m, see OB2-40M
  • on 20m a 2 element full size Moxon allows for outstanding gain and a super radiation pattern with extremely high F/B
  • 2 fully resonant active elements on 15m are additionally enhanced by the 10m director in front which results in an increase of gain and an optimised radiation
  • a driver-director combination on 10m already delivers higher gain and F/B ratio figures which are increased close to the values of a 3 element monobander due to additional positive effects of the 15m elements in the rear
OB8-4M   8 Element, 4 Band       Bands   40 / 20 / 15 / 10 Gain (dBd) *   3,5 / 4,2 / 4,4 / 4,9 Gain (dBi) **   10,7 / 11,4 / 11,6 / 12,1 F/B (dB)   18 / 25 / 20 / 28 VSWR     40 m allgemeines setting:     7,00 – 7,05 – 7,10 – 7,30   1,6 – 1,15 – 1,3 – 1,9 40 m USA phone setting:     7,15 – 7,20 – 7,30   1,5 – 1,15 – 1,4 14,00 – 14,18 – 14,35   1,5 – 1,1 – 1,4 21,00 – 21,25 – 21,45   1,3 – 1,1 – 1,4 28,00 – 28,50 – 29,00   1,6 – 1,15 – 1,7       Elements (number)   8 Active Elements   2 / 2 / 2-3 / 2-3 Max. Elementlength (m)   10.52 Boomlength (m)   6.1 Turning Radius (m)   6.12 Feedlines (number)   1 Coax 50 Ohm Weight (kg)   50 Windload at 130 km/h   970 N / 1,20 m² / 13,0 feet²       Price ***   2.219,00 EUR * = average gain over dipol in free-space / for comparison: 2 el monobander 4 dBd, 3 el 5-6 dBd ** = average gain at 20m above ground (= dBd + 2.15 dB isotropic + about 5 dB ground reflection) *** = outside EU minus 19% tax – subject to change

http://optibeam.net

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FCC Opens 630- and 2200-Meter Bands; Stations Must Notify UTC Before Operating

Sat, 09/16/2017 - 06:26

The FCC has announced that the Office of Management and Budget has approved, for 3 years, the information-collection requirement of the Commission’s March 29 Report and Order (R&O) that spelled out Amateur Radio service rules for the two new bands — 630 meters and 2200 meters. Notice of the action appears in today’s edition of the Federal Register. Before using either band, stations must notify the Utilities Technology Council (UTC), formerly the Utilities Telecom Council, that they plan to do so, and if UTC does not respond within 30 days, they may commence operation.

Last March 27, the FCC adopted the 2012 World Radiocommunication Conference (WRC-12) implementation Report and Order (ET Docket 15-99), amending its Amateur Radio rules to — in the FCC’s words — “provide for frequency-sharing requirements in the 135.7-137.8 kHz (2200-meter) and 472-479 kHz (630-meter) bands.”

Section 97.313(g)(2) of those rules requires that, prior to starting operation in either band, radio amateurs must notify UTC that they intend operate by submitting their call signs, intended band(s) of operation, and the coordinates of their antenna’s fixed location. The new rules do not permit any mobile operation.

“Amateur stations will be permitted to commence operations after a 30-day period,unless UTC notifies the station that its fixed location is located within 1 kilometer of Power Line Carrier (PLC) systems operating on the same or overlapping frequencies,” the FCC said. PLC systems are unlicensed. “This notification process will ensure that amateur stations seeking to operate [on 630 or 2200 meters] are located beyond a minimum separation distance from PLC transmission lines, which will help ensure the compatibility and coexistence of amateur and PLC operations, and promote shared use of the bands.”

The FCC announced that it is making effective immediately the Part 97 rule amendments, § 97.3, 97.15(c), 97.301(b) through (d), 97.303(g), 97.305(c), and 97.313(k) and (l), which do not require OMB approval

Click HERE to access the UTC notification website.

Source:ARRL

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Universal Radio presents the update to the Yaesu FT-991, the FT-991A December 05, 2016 No comments

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1:1 Current balun Dual core 1500 watts RTTY, 5KW ICAS December 19, 2015 No comments

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Stryker SR-955HPC 10 Meter Radio June 15, 2016 No comments

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Antenna Baluns : What They Do And How They Do lt April 09, 2015 No comments

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3 element 144MHz LFA-Q Super-Gainer Quad Style Yagi February 20, 2015 No comments

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SIGMA 3010 HD: 10 THROUGH 30 MHZ HEAVY DUTY VERTICAL DIPOLE FOR USE WITH AUTOTUNER January 23, 2015 No comments

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VHF VA3XPR launches an all-digital Yaesu System Fusion repeater in Toronto January 02, 2016 No comments

Great news for digitally connect hams in the great Toronto area! Today, VA3XPR launches an all-digital repeater using Yaesu’s System Fusion C4FM FDMA... Read more

Leixen VV-898 April 27, 2015 No comments

Leixen  VV-898 Features  * PTT ID  (Voice broadcast PTT ID)  * All calls, group calls and selective calls  * Monitor, RX Inhibit, RXTX Inhibit and Eme... Read more

KYD IP-VU1A – VHF and UHF September 11, 2015 No comments

IP-VU1A(waterproof two way radio) Waterproof IP65 Dual band FM radio Frequency Range: 144-146 MHz and 430-440 MHz (expandable to 136-174MHz,  420-520M... Read more

New ! ICOM A120 VHF Air Band Transceiver January 05, 2016 No comments

VHF Air Band Mobile Radio Icom’s A120 air band mobile introduces two new features: Active Noise Cancelling (ANC) and Bluetooth® capabilities. The newl... Read more

Radioddity GD-55 UHF Waterproof DMR Digital Radio, with GPS Function! 10W with 2800mAh Lithium Polymer (Li-Po) Battery September 15, 2016 No comments

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New 10-GHz Earth-Moon-Earth World Record Set

Fri, 09/15/2017 - 12:58

A new 10-GHz Earth-Moon-Earth (EME or moon bounce) world record has been set. On September 9, Rex Moncur, VK7MO, and Jim Malone, WA3LBI, completed a 18,949.4-kilometer contact using QRA64D. This extends by approximately 600 kilometers the previous world record of 18,337 kilometers held by DL7FJ and ZL1GSG, who used CW.

The participants said the key was to find locations with nearly 0° take-off, which essentially means across water. VK7MO operated from OF76nk at Meelup in Western Australia; WA3LBI operated from FM28io in Delaware. Both stations operated portable. Coincidentally, “Meelup” is an aboriginal word meaning “place of the rising Moon.”

 

VK7MO ran 50 W to a 1.13-meter dish using linear polarization. WA3LBI ran about 125 W to a 2.4-meter dish, RKI feed by Bert Moderman, circular polarization, mounted on a trailer. The loss in going from linear to circular polarization was somewhat less than the expected 3 dB, due to depolarization at the Moon surface (probably around 2 dB).

The time was chosen to maximize the Moon window when spreading was low at 34 Hz and lunar degradation low at 0.8 dB.

WA3LBI was first decoded at –23 dB at 1317 UTC when ground noise would be an issue, as the Moon was at 0° and only partially visible. His signal later peaked at –19 dB, when the elevation was around 2° at VK7MO. In addition to the basic contact requirements, some text messages celebrating the record were also exchanged.

Afterward, VK7MO worked Al Ward, W5LUA, with strong signals up to –14 dB, followed by a second contact with WA3LBI, whose signal peaked at –17 dB and dropped to –23 dB at 1353 when WA3LBI lost the Moon. 

Source:ARRL

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SPE Expert 1.5K-FA Linear Amplifier July 05, 2017 No comments

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BLA 1000 1KW HF amplifier – RM Italy April 13, 2016 No comments

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ARS-USB AZIMUTH by EA4TX January 30, 2015 No comments

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Digital Modes New “Pre-Release” Version of WSJT-X Includes FT8 Changes September 06, 2017 No comments

A new “pre-release” version of WSJT-X now is available. This is the Amateur Radio digital software suite developed by Joe Taylor, K1JT, that includes... Read more

Getting Started on FT-8 by Jim Heath W6LG–Using Holiday Lights September 02, 2017 No comments

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Digital Mode FT-8 With Light Bulb Antenna 750 Miles! August 21, 2017 No comments

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HF Signal Propagation Reporter, PSK/JT65/FT-8/CW/JT9 August 16, 2017 No comments

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ARRL LOTW now accept FT8 Mode August 14, 2017 No comments

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Antenna Optibeam OB8-4M 8 Element 4 Band September 16, 2017 No comments

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FX771 MetroPWR Overview September 14, 2017 No comments

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QST Announces 2017 Antenna Design Competition Winners September 13, 2017 No comments

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Which connector for my antenna should I get? SO-239 or N Female September 03, 2017 No comments

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Antenna Analyzers – ARRL The Doctor is In [Podcast] August 31, 2017 No comments

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Airspy HF+ and SpyServer streaming FFT and Audio data to an Android watch September 11, 2017 No comments

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Exploring the Yagi, Log Periodic, and Phased Array [ Video ] September 07, 2017 No comments

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FX771 MetroPWR Overview

Thu, 09/14/2017 - 16:52

 Technical Features METER METROPWR FX771

  •  Coverage 1.8/55 MHz 160/6mt + VHF/UHF (optional)
  •  Measure Power AVG, PeP, dBm, R, Z, X , SWR, ReturnLoss
  •  Power Range 1mW /3/5Kw
  •  Accuracy SWR <5%
  •  Directivity Coupler 30dB
  •  Accuracy Power 5%
  •  Operating voltage 13.8V
  •  Dimensions 178X100X20 mm
  •  Weight 200gr

Functional characteristics

  •  Display TFT 3.1” 16 K color Touch screen
  •  uP 32bit + Coprocessor
  •  16 Internal Menus
  •  PC USB port
  •  ADC resolution 16bit
  •  Fast I2C Port
  •  updating Firmware USB
  •  App Pc Software
  •  Compatible Windows 10

(adsbygoogle = window.adsbygoogle || []).push({}); Review Retired Librarian Who Was Maine’s First Woman Radio Amateur Turns 108 September 26, 2016 No comments

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Upgraded Baofeng DM-5R Can Communicate with a Motorola Radio October 19, 2016 No comments

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Icom RS-BA1- Installing & Setting up Remote Control for your IC-7300 March 10, 2017 No comments

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QRP – Multi-band, Direct Conversion CW Transceiver August 12, 2015 No comments

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Alpha 4040 DreamTuner December 19, 2014 No comments

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Digital Modes New “Pre-Release” Version of WSJT-X Includes FT8 Changes September 06, 2017 No comments

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Not All “Intruders” on Ham Bands are Illegal — But a Lot of Them Are

Thu, 09/14/2017 - 15:38

The monthly newsletter of the International Amateur Radio Union Region 1 Monitoring Service (IARUMS) typically makes for some interesting reading. While the reports that come from more than two dozen contributors in Europe and Africa can be a bit visually dense, the content conveys the impression that that there are myriad intruders on the Amateur Radio bands. However, not all of them are illegal, as IARUMS points out, but a lot of the signals heard are not supposed to be where they were monitored. The individual reports can be a bit humorous too.

“Get the grub, and I’ll talk to you later this evening,” was a snippet of a conversation between two fishermen — identified as Mick and Jack — that an Irish Radio Transmitters Society (IRTS) monitor overheard on 3.570 MHz and reported to the IARUMS. The IRTS said the chatter was accompanied on both sides by “loud motor noise,” and, if that were not sufficient detail, it pointed out that both men had Galway accents. Intruding signals from fishing crews throughout IARU Region 1 are commonplace.

More blatant are the repeat offenders, such as the “Chinese foghorn” heard by over-the-horizon (OTH) radars on several frequencies in the exclusive Amateur Radio 20-meter allocation, as well as on 15 and 40 meters. IARUMS Region 1 Coordinator Wolf Hadel, DK2OM, said the signals, 10 kHz wide and with 50 and 66.66 sweeps per second, transmit in burst mode and often jump frequencies.

Some signals from military stations on non-exclusive Amateur Radio allocations are legal. For example, the latest IARUMS newsletter cites the Stanag-4285 military signal that showed up for a few days in August on 5,361.8 kHz. The Stanag-4285 transmissions, coming from a Navy facility in Aarhus, quit on August 28. “Many thanks to the Danish Navy for leaving this frequency!” Hadel added, noting that the Danish Navy is a primary user. “We have to respect primary users!” he said.

An Australian OTH radar “Jorn” showed up on 5,357 kHz. IARUMS noted that this is a primary user of that band.

Adding a little mystery and intrigue to the compilation was a report from a radio amateur in the UK citing a “female voice with encrypted messages” on 14.212 MHz, believed to originate with the Foreign Intelligence Service of Ukraine in Rivne.

In the “miscellaneous or bad news” category were some repeat offenders, such as Radio Hargaysa in Somalia on 7,120.0 kHz; Radio Eritrea and white noise interference from Radio Ethiopia persisting on 7,140.0 kHz and 7,180 kHz; a third harmonic of Radio Tajik on 4,765 kHz, showing up on 14,295.0 kHz; the Sound of Hope from Taiwan, transmitting on 18,080 kHz; the Russian Navy sending CW on 21,438.0 kHz, and Radio Iran “in burst mode” on 28,960.0 kHz, daily.

True intruders are those appearing on exclusive Amateur Radio frequency allocations. Some domestic Amateur Radio HF allocations outside Region 2 (the Americas), such as 7.200 to 7.300 MHz, are either shared with other services or not available to radio amateurs. Only the 7.000 to 7.200 MHz segment of 40 meters is currently allocated exclusively to the Amateur Radio Service worldwide. On other ham radio HF allocations, such as the 30-meter band, Amateur Radio is secondary to other users. However, the 20, 17, 15, 12, and 10-meter bands are exclusively available to the Amateur Radio Service worldwide.

Source:ARRL

(adsbygoogle = window.adsbygoogle || []).push({}); Review Ham Radio Basics- Linear Amplifiers October 20, 2016 No comments

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WELLBROOK ALA1530S+ LOOP ANTENNA – Review February 06, 2015 No comments

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ME3000-V 2m EME – VHF Amplifier ( 3KW – 144MHz ) January 02, 2015 No comments

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LimeSDR Mini

Thu, 09/14/2017 - 06:46
An open, full-duplex, USB stick radio for femtocells and more

The LimeSDR Mini development board is a hardware platform for developing and prototyping high-performance and logic-intensive digital and RF designs that use Altera’s MAX 10 FPGA and Lime Microsystems’ LMS7002M RF transceiver.

LimeSDR vs LimeSDR Mini

The LimeSDR and LimeSDR Mini are members of the same family of software-defined radios. One does not replace the other. Rather, they are complementary.

Simply put, the LimeSDR Mini is a smaller, less expensive version of the original LimeSDR. However, it still packs a punch – at its core, the LimeSDR Mini uses the same LMS7002M radio transceiver as its big sibling. The Mini has two channels instead of four, and, by popular demand, SMA connectors instead of micro U.FL connectors. Check out the comparison table below for more details.

We’ve already shipped thousands of LimeSDR boards and are about to clear out the backlog of remaining LimeSDR orders. The LimeSDR Mini is built on the LimeSDR supply chain, dev tools, and community in a way that makes software-defined radio more accessible than ever.

Features & Specfications
  • RF transceiverLime Microsystems LMS7002M
  • FPGAAltera MAX 10 (10M16SAU169C8G)
    • 169-pin FBGA package
    • 16 K Les
    • 549 KB M9K memory
    • 2,368 KB user flash memory
    • 4 x fractional phase locked loops (PLLs)
    • 45 x 18×18-bit multipliers
    • 130 x general purpose input/output (GPIO)
    • Single supply voltage
    • Flash feature
    • FPGA configuration via JTAG
  • EEPROM memory: 2 x 128 KB for RF transciever MCU firmware and data
  • Flash memory: 1 x 4 MB flash memory for data
  • General user inputs/outputs:
    • 2 x dual color (red + green) LED
    • 8 x FPGA GPIO pinheader (3.3 V)
  • Connectivity:
    • USB 3.0 Type-A (FTDI FT601 controller)
    • Coaxial RF (SMA) connectors
    • FPGA GPIO headers
    • FPGA JTAG connector
  • Clock system:
    • 30.72 MHz onboard VCTCXO
    • Possibility to tune VCTCXO with onboard DAC
  • Board dimensions: 69 mm x 31.4 mm
Block Diagram


 

Comparison Table   HackRF One Ettus B200 Ettus B210 BladeRF x40 RTL-SDR LimeSDR LimeSDR Mini Frequency Range 1 MHz – 6 GHz 70 MHz – 6 GHz 70 MHz – 6 GHz 300 MHz – 3.8 GHz 22 MHz – 2.2 GHz 100 kHz – 3.8 GHz 10 MHz – 3.5 GHz RF Bandwidth 20 MHz 61.44 MHz 61.44 MHz 40 MHz 3.2 MHz 61.44 MHz 30.72 MHz Sample Depth 8 bit 12 bit 12 bit 12 bit 8 bit 12 bit 12 bit Sample Rate 20 MSPS 61.44 MSPS 61.44 MSPS 40 MSPS 3.2 MSPS 61.44 MSPS 30.72MSPS TX Channels 1 1 2 1 0 2 1 RX Channels 1 1 2 1 1 2 1 Duplex Half Full Full Full N/A Full Full Interface USB 2.0 USB 3.0 USB 3.0 USB 3.0 USB 2.0 USB 3.0 USB 3.0 Programmable Logic Gates 64 macrocell CPLD 75k 100k 40k (115k avail) N/A 40k 16K Chipset MAX5864, MAX2837, RFFC5072 AD9364 AD9361 LMS6002M RTL2832U LMS7002M LMS7002M Open Source Full Schematic, Firmware Schematic, Firmware Schematic, Firmware No Full Full Oscillator Precision +/- 20 ppm +/- 2 ppm +/- 2 ppm +/- 1 ppm ? +/-1 ppm initial, +/-4 ppm stable +/- 1 ppm initial, +/- 4 ppm stable Transmit Power -10 dBm+ (15 dBm @ 2.4 GHz) 10 dBm+ 10 dBm+ 6 dBm N/A max 10 dBm (depending on freq.) max 10 dBm (depending on freq.) Price $299 $686 $1,119 $420 ($650) ~$10 $299 $99

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Help the Ham Aid Response Effort in Florida and the US Virgin Islands September 13, 2017 No comments

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Amateur Radio Volunteer Response Continues to Historic Hurricane Irma September 11, 2017 No comments

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Xiegu X5105 QRP Portable HF Radio – Review and Demo HF/6m September 06, 2017 No comments

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Help the Ham Aid Response Effort in Florida and the US Virgin Islands

Wed, 09/13/2017 - 16:18

Photo:W1AW Station Manager Joe Carcia, NJ1Q (left), and ARRL Emergency Preparedness Manager Mike Corey, KI1U, pack Ham Aid gear for shipment in advance of Hurricane Irma.

Due to this busy hurricane season, ARRL’s inventory of Ham Aid kits has been severely depleted. ARRL’s Ham Aid program loans Amateur Radio equipment kits to established ARES and partner agencies during disaster response, in order to establish Amateur Radio communications support.

ARRL has been supplying Ham Aid kits for the Hurricane Irma emergency response efforts in Florida and the US Virgin Islands. Thanks to Tim Duffy, K3LR, of DX Engineering, for quickly processing ARRL’s purchase of six HF transceivers, which enabled Ham Aid to respond within 24 hours to an equipment request from the US Virgin Islands. ARRL used FEMA resources for shipping, and the gear is on its way via contracted courier to San Juan, Puerto Rico, where it will be staged for deployment.

More Ham Aid equipment is needed for future requests. Please help ARRL in this effort by contributing to the Ham Aid Fund, which is used to purchase new equipment as well as to refurbish/repair previously deployed equipment. Your contributions to Ham Aid are 100% tax deductible. To make a donation online, go to https://www.arrl.org/arrl-donation-form and select “Ham Aid” from the ARRL donation form. To donate by mail, follow the instructions on the web page, noting “Ham Aid” on the memo line of your check.

Source:ARRL

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QST Announces 2017 Antenna Design Competition Winners

Wed, 09/13/2017 - 10:35

QST has announced the winners of its 2017 Antenna Design Competition. Following a solicitation for entries earlier this year. members submitted nearly 100 antenna designs in three categories: 160 Meters and Lower Frequencies, 80 Through 10 Meters, and 6 Meters and Higher Frequencies.

Winners will receive certificates and cash prizes. The winning designs are also eligible for publication in QST and other ARRL media.

160 Meters and Lower Frequencies

First Prize: Theodore P. Algren, KA6W, “A Linear-Loaded Low-Angle Radiating Delta Loop for 160.”

Second Prize: Joseph H. Reisert Jr, W1JR, “160 Meter Unipole Implementation.”

Third Prize: Dave Ahlgren, K1BUK, “A Super Slinky Antenna for Topband”

80 Through 10 Meters

First Prize: Alan Christman, K3LC, and Joseph Johnson, K3RR, “A Three-Element Reversible 80-Meter Vertical Moxon Yagi.”

Second Prize: Jacek Pawlowski, SP3L, “Cat’s Whiskers — A Broadband Multi-Loop Antenna.”

Third Prize: Herb Allred, N4HA, “A 20 Meter Two-Element Wire ‘IV’ Beam.”

6 Meters and Higher Frequencies

First Prize: John Portune, W6NBC, “A Low Profile 2-Meter Mobile Antenna.”

Second Prize: David P. Finell, N7LRY, “A 2-Meter Quadrifilar Helix Antenna.”

Third Prize: Paul J Kiesel, K7CW, “A 16-Element 6-Meter Collinear Array”

Honorable Mentions

The judges also selected several entries for Honorable Mentions. While these individuals will not receive prizes or certificates, their designs will be eligible for publication in QST.

80 Through 10 Meters

Donald P. Crosby, W1EJM, “A Mechanically Adjustable Flagpole Inverted L.”

Roger Posthumus, WB2YQA, “An 80-10 Meter Vertical with Inductive Isolation.”

Richard Kiefer, K0DK, “A 40 Meter Rotatable Dipole on a 24 Foot, 20 Meter Yagi Boom.”

Bernard Wehrli, HB9ALH, “An Optimum Height Inverted V for 20, 15 and 10 Meters.”

Andrew Siegel, N2CN, “A Two-Element 40-Meter Wire Yagi.”

Robert Perkins, W0JEE, and Bud Hammers, W5RPU, “A 1,200-foot Horizontal Loop Antenna for MF through HF.”

6 Meters and Higher Frequencies

Scott. McCann, W3MEO, “A Portable Two-Element 6-Meter Yagi.”

Yasuhiro Kawai, JH1KOJ, “Half Vivaldi; A Wide-Band Exponential Antenna.”

Axel H. Lehmann, DG3AL, “Compact Light-Weight Moxon Array for 2 Meters and 70 Centimeters.”

Hans E. Heyn, KB9MFQ, “A Horizontally Polarized 6-Meter Squalo for SSB.”

Source:ARRL

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VR-P25 Power Amplifier for Handheld Radios

Wed, 09/13/2017 - 09:44

VR-P25 is a portable, lightweight, Wide coverage RF booster amplifier for Handheld Radio equipment, proprietary and emerging waveforms.

Two Way Radio Power Amplifier
For digital DMR, dPMR, P25, MP1327 and Analog Radios  model VR-P25D DMR double time slot FEATURES:
  • Dual mode for Digital and Analog Radio. Automatic recognition of digital and analog systems. Use for DMR, dPMR, D-STAR, C4FM, etc.
  • High output power up to 25 watts.
  • Input power from 2 to 5 watts. With 2 to 5 Watts Handheld Radio input and covers the frequency band of VHF or UHF.
  • Small size: This amplifier’s size makes it the perfect companion for held operation without the added weight.
  • Includes Voltage Spike Suppression. Over Temperature Protection. RF sensing. Automatic Power Control (APC), Harmonic Filters.
  • Built-in speaker and microphone socket.
  • Status indicator Lets you know the working status.

  • GENERAL SPECIFICATIONS FREQUENCY RANGE
    • 400 – 470 MHz
    • 136 – 174 MHz
    • 350 – 400 MHz
    • 222 – 225MHz
    POWER OUTPUT 25 Watts INPUT POWER RANGE 2- 5 Watts CURRENT CONSUMPTION 4.5 A SUPPLY VOLTAGE 12V-15V (DC) INPUT,OUTPUT IMPEDANCE 50 Ohm nominal RF CONNECTORS RF lnput( Radio) – SMA*RF Outpot(antenna) – SL 16*

    •RF connectors may be ordered in any configuration of TNC or N-fype per customer
    SIZE (HxWxD) 35 x 115 x 135 mm WEIGHT 800 g

    Price: USD 64.58

http://www.verotelecom.com

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Tue, 09/12/2017 - 17:01

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Amateur Radio Volunteer Response Continues to Historic Hurricane Irma

Mon, 09/11/2017 - 14:39

“We have survived Hurricane Irma.” That assessment came this morning from ARRL West Central Florida (WCF) Section Manager Darrell Davis, KT4WX, who reported that the storm’s eye passed over the Hardee County emergency operations center just before midnight EDT on September 10. (Davis also is the Hardee County Emergency Coordinator). Irma has now been downgraded to a tropical storm, but flooding remains a threat as the storm’s remnants move inland. Davis said he was grateful for the Ham Aid equipment — four hand-held transceivers and one mobile transceiver — that ARRL sent to Florida as the storm threatened the peninsula last week. After hitting the Florida Keys, Hurricane Irma made landfall near Naples, Florida, on September 10 at around 2100 UTC as a Category 2 storm.

No one is standing down just yet, however. Davis said his section, which includes the City of Tampa, will have a conference call this afternoon and an ARES net this evening “to assess any unmet needs by our ARES groups in our Section.” Thirty Florida counties were under mandatory evacuation orders. As of today, FEMA reports that 586 shelters are open, housing some 192,000 occupants. FEMA also reported that more than one-half of the state’s customers — some 5.7 million people — were without electrical power as of early this morning.

Over the weekend, a Regional SKYWARN Net was active in the West Central Florida Section to gather severe weather reports, and Florida’s Statewide Amateur Radio Network (SARnet) was running a coordination and assistance net to help communicate between the county EOCs and the State EOC and to provide assistance to Amateur Radio operators in other ways, time permitting. The priority during the weekend was tactical shelter communication, EOC communication, and SKYWARN nets as Hurricane Irma approached. At one point, Pascoe County in the WCF Section put out a call for Amateur Radio support, seeking 20 volunteers with their own equipment.

“At our own EOC, the data from APRS stations was very important to our decision makers in the EOC to allow Fire and EMS back on the road, post storm,” Davis reported. “Our repeater went off the air due to power failure. I went to reverse and listen to the repeater input and transmitted on the output and we maintained communications through the storm.”

Davis said the Ham Aid mobile transceiver went to the area’s special needs shelter at a local community college, primarily due to the fact that a handheld’s signal was hampered by the building.

The Hurricane Watch Net (HWN) remains in operation, reported Net Manager Bobby Graves, KB5HAV. “Considering the path of destruction caused by Irma, many areas, especially the islands, are just now beginning to get HF communications somewhat restored,” Graves said in his 1000 UTC update. “In addition to collecting post-storm damage reports, we will be calling and listening for stations who have been affected by Irma with emergency and priority traffic.” He anticipates that nets such as the HWN will “be busy for days” handling health-and-welfare, emergency, and priority traffic.

“Please, don’t drop your guard on Hurricane José,” Graves added. “Over the next few days, this storm is expected to make a loop and perhaps affect the Turks and Caicos Islands, Bahamas, Cuba, and South Florida by the weekend.”

As if Earth’s weather was not bad enough already, an X-class solar flare severely disrupted HF communication on Sunday at around 1600 UTC. Graves said the widespread communication blackout lasted for nearly 3 hours, “which could not have happened at a worse time,” he added. “But, we cannot control Mother Nature, only work around her.”

The Hurricane Watch Net remains operational on 14.325 MHz during the day and on 7.268 MHz after dark.

The VoIP Hurricane Net activated over the weekend to track the impact of Irma as well as of Hurricane Katia, which made landfall on the coast of southeastern Mexico. The activation was expected to continue through September 11.

Puerto Rico fared better than had been expected. “We were lucky that all we got were tropical storm winds,” said Puerto Rico Section Public Information Coordinator Angel Santana, WP3GW, adding that the storm did down some trees on the island. While electrical power has been up, there is still no water, Sandana said.

“Some repeater systems did operate without problems, and, besides reports on Irma’s route, many were indicating local conditions,” Santana said. “Our Section Emergency Coordinator remained in contact with the Red Cross,” he said, and on September 9, volunteer radio amateurs went to the island of Culebra to establish HF communication there so they could keep in touch with the Red Cross office in San Juan, where ARRL Puerto Rico Section Manager Oscar Resto, KP4RF, was stationed. More than 350 Puerto Rico residents took advantage of Red Cross shelters, and about 150 evacuated to shelters in the US Virgin Islands.

Santana said the Friendly Net and Caribbean Emergency Radio Net were fairly active, and on September 10, 1,000 refugees from St. Martin were brought to Puerto Rico

Source:ARRL

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Wireless Association of New York City’s WA2NYC Commemorates 9/11 Anniversary

Mon, 09/11/2017 - 11:24

WA2NYC has been on the air since September 8 to commemorate the anniversary of the 9/11 terror attacks in 2001.

“This station will commemorate the 16th anniversary of the attack on the World Trade Center in New York City,” said the post on the club’s QRZ.com website. “We remember the over twenty-nine hundred people who lost their lives on that day.”

The special event is operating on or near 7.220, 14.265, 21.350, and 28.450 MHz. QSL direct or via Logbook of The World (LoTW). Note that 14.265 MHz is the operating frequency of the Salvation Army Team Emergency Network (SATERN), which holds a daily net on that frequency and has been on alert for storm-related emergency traffic.

Source:ARRL

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