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Updated: 9 hours 8 min ago

50 Ham Radio Operators Needed For Red Cross Mobilization in Puerto Rico

10 hours 50 min ago

The American Red Cross (ARC) has asked the ARRL for assistance with relief efforts in Puerto Rico. ARC needs up to 50 radio amateurs that can help record, enter and submit disaster survivor information into the ARC Safe and Well system. In the nearly 75-year relationship between ARRL and ARC this is the first time such a request for assistance on this scale has been made. ARRL now is looking for radio amateurs that can step up and volunteer to help our friends in Puerto Rico. There are very specific requirements and qualifications needed for this deployment.

Requirements Due to the nature of this deployment you will need to process in as ARC volunteers, including passing a background check. The ARC has indicated they will cover all expenses for transportation, lodging and feeding while on deployment. ARC will also provide liability coverage for volunteers. The only out of pocket expense to the volunteer would be personal items purchased during deployment.

ARRL and ARC will require training for volunteers being deployed. ARC will provide general deployment training and advanced training in working in austere environments. ARRL will provide to ARC training on Amateur Radio equipment and modes to be used, reporting and operating guidelines. Deployment will be for up to three weeks.

Qualifications – General class Amateur Radio license or higher – Familiarity with WinLink, HF voice, and VHF simplex communications – Strong technical skills – Ability to work under difficult conditions – Ability to deploy for up to three weeks – Ability to work as part of a team Helpful Skills – Spanish speaking – Previous experience in disaster response – Previous or current work as a Red Cross volunteer – Previous experience with shelter operations

If you feel that you meet these qualifications and would like to be considered for this deployment please contact ARRL Emergency Preparedness Manager Mike Corey, KI1U, ki1u@arrl.org or 860-594-0222 who will make the introduction of qualified volunteers to ARC.

 

Requirements

  • There are very specific requirements and qualifications needed for this deployment.
  • Due to the nature of this deployment you will need to process in as ARC volunteers. This includes passing a background check. The ARC has indicated that it will cover all expenses for transportation, lodging, and feeding while on deployment. ARC will also provide liability coverage for volunteers. The only out-of-pocket expense to the volunteer would be personal items purchased during deployment.
  • ARRL and ARC will require training for volunteers being deployed. ARC will provide general deployment training and advanced training in working in austere environments. ARRL will provide to ARC training on Amateur Radio equipment and modes to be used, reporting guidelines, and operating guidelines.
  • Deployment will be for up to 3 weeks.

Qualifications

  • General class Amateur Radio license or higher
  • Familiarity with WinLink, HF voice, and VHF simplex communications
  • Strong technical skills
  • Ability to work under difficult conditions
  • Ability to deploy for up to 3 weeks
  • Ability to work as part of a team

Helpful Skills

  • Spanish language skills
  • Previous experience in disaster response
  • Previous or current work as a Red Cross volunteer
  • Previous experience with shelter operations
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Reports of Hurricane Devastation on Dominica Relayed by Amateur Radio, Picked up by Media

Wed, 09/20/2017 - 14:13

[This updates a report posted earlier.] In the immediate aftermath of then-Category 5 Hurricane Maria’s passage over Dominica on Monday, Frans van Santbrink, J69DS, on St. Lucia checked into the VoIP Hurricane Net to relay damage reports he’d gathered via repeater conversations with other hams there. The New York Times also reported and posted audio that Amateur Radio was a primary source to gather initial damage reports from the storm-ravaged Caribbean Island nation of some 70,000 residents. US-based Julian Antoine, J73JA, solicited reports via a VoIP connection with the J73MAN repeater on Dominica.

All power lines are down, our telephone lines are down, Internet lines, everything is down,” came a reply to Antoine’s inquiry. “Roads are blocked with debris. No confirmed information on fatalities or injuries.”

What seems to be a subsequent responder reported, “Lots of flooding, water coming into windows and doors,” while another indicated that while he was “nice and dry now,” he had lost his roof and was at a shelter. “From what I’ve seen so far, it’s pretty bad,” another report stated. The same responder said he could see some landslides too, along with broken trees and utility poles. “It’s just damage all over,” concluded the report, apparently from J73CC.

VoIP Hurricane Net Operations Director Rob Macedo, KD1CY, told ARRL that he recorded the audio that the New York Times used on Tuesday while he was monitoring the J62DX-L link on EchoLink.

In his report to the VoIP Hurricane Net, van Santbrink recounted a damage account from Kerry Fevrier, J69YH, in Roseau, Dominica. “Trees down, river has flooded half the village, cars are all over, most houses have lost their roofs or are destroyed, the area between his house and the church is just flattened…in his words, ‘devastation is total,’” van Santbrink told the net.

He also heard from J73CI, who has lost his roof; J73WA on the northern end of the island, who lost his tower and was uncertain how he was going to weather the back end of the storm, and J73MH, who also lost his roof and was “just hunkering down and hoping for the best.” — Thanks to the VoIP Hurricane Net; New York Times

Source:ARRL

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The FMRE National Emergency Net has activated on 7.060 MHz following a magnitude 7.1 earthquake in the central Mexico state of Puebla at 1814 UTC on Tuesday. The net also uses 3.690 MHz and 14.120 MHz as well as IRLP reflector 9200, channel 08.

The epicenter was some 75 miles southeast of Mexico City, which felt the temblor. Preliminary reports indicate a lot of collapsed buildings and missing people.

The FMRE net has been handling traffic to make up for the loss of some cellular networks, FMRE President Al Tomez, XE2O, told ARRL. The earthquake came 32 years to the day after a 1985 magnitude 8.0 earthquake struck the Mexico City, killing some 9,500 people in and around the capital city.

Just one week ago, a magnitude 8.1 earthquake struck off Mexico’s southern coast, killing more than 60 people and causing considerable damage.

Source:ARRL

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Rockwell Collins Sold to United Technologies

Tue, 09/19/2017 - 15:05

United Technologies has acquired avionics maker Rockwell Collins in a $30-billion deal. United Technologies said it wants to further enhance its role in aviation for both its military and commercial customers in the area of new aircraft connectivity systems.

Collins Radio and later Rockwell Collins for many years manufactured top-tier Amateur Radio equipment. Art Collins, W0CXX, founded Collins Radio Company in 1933. The Cedar Rapids, Iowa-based firm initially built shortwave and AM broadcasting gear as well as the military and scientific communities, and Collins provided the radio equipment to keep in touch with Admiral Richard Byrd’s South Pole Expedition in 1933.

During World War II, Collins became the principal supplier of military radio and navigation equipment, and Collins later produced Amateur Radio equipment and provided communication gear for early NASA missions.

Collins Radio Company was purchased by Rockwell International in 1973. In 2001, the avionics division of Rockwell International was spun off to form Rockwell Collins. In its Amateur Radio heyday, the Collins S-Line was considered the king of the hill. Vintage Collins gear remains popular, and Collins mechanical filters are still widely used.

Source:ARRL

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Radio Amateur on St. Lucia Relays Reports of Hurricane Devastation on Dominica

Tue, 09/19/2017 - 10:44

As “potentially catastrophic Hurricane Maria” is headed for the Virgin Islands and Puerto Rico. Frans van Santbrink, J69DS, on St. Lucia checked into the VoIP Hurricane Net to relay damage reports he gathered via repeater conversations with hams on Dominica, which was hit by Category 5 Hurricane Maria.

He recounted a damage report from Kerry Fevrier, J69YH, in Roseau, Dominica. “Trees down, river has flooded half the village, cars are all over, most houses have lost their roofs or are destroyed, the area between his house and the church is just flattened…in his words, ‘devastation is total,’” van Santbrink told the net.

He also heard from J73CI, who has lost his roof; J73WA on the northern end of the island, who lost his tower and was uncertain how he was going to weather the back end of the storm, and J73MH, who also lost his roof and was “just hunkering down and hoping for the best.”

As of 1200 UTC, Maria was about 85 miles west of Guadeloupe and 170 miles southeast of St. Croix, with maximum sustained winds of 160 MPH (Category 5).

The National Hurricane Center (NHC) predicts, “Hurricane conditions will continue to spread throughout portions of the hurricane warning area in the Leeward Islands this morning. Hurricane conditions should spread through the remainder of the hurricane warning area later today and Wednesday.” — Thanks to the VoIP Hurricane Net

Source:ARRL

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SX-2000 QRP HF transceiver with touch screen September 24, 2015 No comments

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Icom’s first Software-Defined Radio (SDR) HF Transceiver – IC-7300 in action with ML&S March 09, 2016 No comments

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VHF ID-4100 – Icom Catalog Scan – Japanese March 12, 2017 No comments

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Anytone AT-3318UV-A VHF and UHF June 19, 2015 No comments

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Solar Power for your Ham Station AD #52 March 26, 2017 No comments

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First Impressions of the Icom IC-7300 HF + 6M Transceiver February 16, 2016 No comments

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Why even good Antennas need good Coax Cable January 14, 2017 No comments

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Antenna 40/20/10 Meter Fan Dipole Attic Antenna by KD2GOE December 14, 2014 No comments

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New! 40m Rotating Dipole by G0KSC February 06, 2016 No comments

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Portable 2 element 6m beam October 03, 2015 No comments

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The Future of Amateur Radio – YOTA

Tue, 09/19/2017 - 06:24

YOTA is a group of young radio amateurs from IARU Region 1. Most of us are under the age of 26. Each year we get together in different European countries to spend some quality time. Not only just having fun and playing games, we come up with new ideas, new projects, plans for the future, etc. During the other months of the year we gather on the bands and have some fun together, take part in contests or just make some YOTA-skeds.

The goal of YOTA is to welcome new and young amateur radio operators to our beautiful hobby. We live in a world where communication is being digitalized in a way that we almost can’t keep up with. In times like this it’s important to convince people about the importance of our hobby. Together with other youngsters all around the world, we can make the difference and give our hobby the future it deserves!

 

This year 80 Youngsters from 25 countries in IARU Region 1 and even one country from IARU Region 3 (Japan) will gather in Gilwel Park, United Kingdom. We will meet eachother, talk about our hobby and most of all have fun! There will be many activities planned throughout the week so we can learn more about eachoter and especially eachothers cultures and habbits. Want to know more? Have a look on the YOTA UK pageor look at the latest news from the UK!

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VR-P25 Power Amplifier for Handheld Radios September 13, 2017 No comments

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Compact D-Star Transceiver, Icom ID-31 upgraded! August 10, 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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Icom IC-9100 – QST Review September 14, 2015 No comments

Icom IC-9100 Mark J. Wilson, K1RO, k1ro@arrl.org Reviewed by Rick Lindquist, WW3DE National Contest Journal Managing Editor ww3de@arrl.org The only re... Read more

Ham Radio Basics- Linear Amplifiers October 20, 2016 No comments

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Antenna Yagi Antenna 4 antenna elements 5 bands October 29, 2015 No comments

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SIGMA GT3: SUPER STEALTHY 20M / 15M / 10M VERTICAL DIPOLE FOR USE WITH AUTOTUNER January 15, 2016 No comments

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Metrovna modern antenna analyzer December 05, 2015 No comments

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Free Azimuthal Maps by NS6T December 03, 2014 No comments

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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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App - Mobile Ham Radio License Exam Preparation for Iphone and IPad September 11, 2015 No comments

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DX Alert App ( Mobile ) October 20, 2015 No comments

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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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RF Linear amplifier  coverd 1.8-30MHz WARC amateur bands , using Chinese FU728F ceramic tetrodes  working at  Class AB1 driving power:5-50W  output:20... Read more

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EK1C 3 band QRP CW transceiver for 20, 30, 40 meters May 01, 2017 No comments

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SunSDR2 PRO May 17, 2015 No comments

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VHF Alinco DR-635T Mobile / Base VHF / UHF March 31, 2015 No comments

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Icom IC-2730A vs IC-2720 March 25, 2015 No comments

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Comparison: Elecraft KX3 and ICOM IC-7300 August 18, 2017 No comments

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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 Reports of Hurricane Devastation on Dominica Relayed by Amateur Radio, Picked up by Media September 20, 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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Antenna Omni-Directional – Circularly (Mixed) Polarized Antenna for 144 MHz / VHF / 2 Meters. August 18, 2015 No comments

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How to win a VHF Contest – DR9A 2017

Sun, 09/17/2017 - 09:25

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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 )

Sat, 09/16/2017 - 13:05

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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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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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

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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

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Yaesu FT-65R The Yaesu FT-65R is a rugged, lightweight and compact VHF/UHF handheld transceiver that offers up to 5W of output power along with lower... Read more

How Can I Get Radio Coverage in “Dead” Spots? January 14, 2015 No comments

“A two-way radio system using a repeater may have great coverage except in areas, such as parking garages and basements of buildings, whose envi... Read more

PROJECT: CROSS BAND REPEATER WITH 2 BTECH MOBILES April 19, 2016 No comments

PROJECT: CROSS BAND REPEATER WITH 2 BTECH MOBILES     Read more

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

  VHF Amplifier  Frequency Coverage: 144-146MHz amateur band.   extensions and/or changes   on request. • Power Output: 3000 W CW/SSB • Intermodu... Read more

New Microwave, UHF Distance Records Set on Same Day July 06, 2016 No comments

New distance records were set on 47 GHz and on 902 MHz on June 30 by stations at vastly separated points on the globe. On 47 GHz, US and Canadian oper... Read more

Antenna Beverages On Ice vs. Beverages On Ground DX February 19, 2015 No comments

Beverages On Ice vs. Beverages On Ground DX Read Full Article:   Read more

Antenna Yagi MB8 15-20 Separate Feed line – MomoBeam April 27, 2017 No comments

The MB8 15-20 SF is a fullsize antenna for 14 MHz and 21 MHz. No traps or adapting systems where used to obtain fantastic performances and the best ba... Read more

Measuring Propagation Attenuation Using a Quadcopter by N6GN August 26, 2016 No comments

These tests show that the signal strength of a local station can be many tens of decibels weaker than from a DX station. For the last several years I... Read more

Triband end-fed half wave antenna for portable use November 05, 2015 No comments

Describing and demonstrating an end-fed multiband antenna for portable use. It’s a full-sized half wave on 20 metres and a loaded half wave on 4... Read more

Cross-Band Yagi 144/430 MHz 5+9 el. 150cm April 24, 2015 No comments

  DK7ZB based, especially recalculated for armateur sattelites use – 146 and 437 MHz. Cross-Band Yagi The antenna is designed mainly for co... Read more