SwissUnit automatic antenna switch for a second receiver

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SwissUnit is an automatic antenna relay for one transceiver and one receiver on the same antenna.

The use of an SDR with a traditional HF receive is a nice enhancement of any amateur radio station. With suitable software the transceiver can be controlled by the SDR interface. This brings new life to any older radios by adding an up-to-date waterfall feature. But often you face the question, where to get the antenna signal from. Not every transceiver offers an antenna monitor output. What to do?

Swiss Unit FrontThis is exactly the issue the Swiss made “SwissUnit” addresses. Swiss Unit is the combination of an antenna splitter with an antenna relay and the required controller electronics.

When receiving the antenna signal is split up to both – the transceiver and the SDR receiver. You can use the received signal on both systems, on the radio and on the computer. When switching to transmit mode the relay cuts off the SDR branch of the splitter and the antenna is directly connected to the transceiver. This protects the receiver input of the SDR. As a result you get a very comfortable system with up-to-date SDR reception and waterfall, and your trusted transmitter from the existing radio.

At the same time as switching the HF signal, the SwissUnit also switches an audio signal. This is used to cut off the audio signal coming from the SDR via the computer soundcard to the speaker system, to prevent audio feedback when transmitting. The supplied switching electronics box takes the PTT signal and supply voltage from the transceiver and switches the relays when going to transmit. The signaling is very simple, a cable can be homemade within a few minutes. Practically any transceiver can be used.

The HF relay and splitter is a qualit product with excellent specifications, which can switch up to 100W power. The splitter is specified up to 400 MHz, but can be used up to the 70cm band without too much losses. The antenna connectors are N sockets, the radio side uses BNC sockets. The control cable from the transceiver uses a 4 pin rund Foster type connector, as it is found on microphones as well.

A control cable radio to use with the FT-991/A is offered as well, other transceiver cables are planned. But it is very easy to make a cable on your own, the required connector is supplied

SwissUnit is a product by HB9IQK and marketed by Wimo

 

Amateur Radio News 06 2019

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Amateur Radio Stories:

Here is a recap of what happened in the web this week, through the eyes of the DXZone and other ham radio sources on the web.

  • Enter RSGB Club of the Year
    This year’s RSGB Club of the Year competition has just one category for entrants. As well as being open to clubs of all sizes, entries are welcome from all RSGB affiliated groups. The theme is Meeting RSGB Strategy 2022. Entries must be received by…
  • ARRL reaching out to newcomers
    The ARRL is launching a new Podcast that aims to answer questions and provide support and encouragement for newcomers to get the most out of the hobby…
  • DXCC Country/Entity Report
    According to the Amateur Radio Cluster Network for the week of Sunday, 20th January, through Sunday, 27th January there were 218 countries active…
  • Nordics On The Air Finland 2019
    Nordics On The Air 19.-22.4.2019 in Finland – a YOTA sub-regional ham camp open for all youngsters
    This year, the annual Nordics On The Air ham youth camp will be held in Finland during Easter, the 19th-22nd of April. We invite all the Nordic youn…
  • ARRL Launching New Podcast Geared Toward New Radio Amateurs
    For those just getting started on their Amateur Radio journey, ARRL is launching a new podcast aimed at answering your questions, providing support and encouragement for newcomers to get the most out of the hobby. The podcast “So Now What?” will …
  • W1AW Continues Search for West Coast Qualifying Run Station
    Maxim Memorial Station W1AW is seeking a volunteer station on the US West Coast that can serve as another ARRL Qualifying Run CW transmitting station. The west-coast station shares in the transmission of a monthly Qualifying Run for the benefit of th…
  • The K7RA Solar Update
    The past week saw increased solar activity, with average daily sunspot numbers rising from 5.3 to 19.6 and average daily solar flux from 69.8 to 74.5. We haven’t seen such strong activity since the beginning of last summer, when ARLP016 in 2018 rep…
  • A New QST QuickStats Poll Has Been Posted
  • Fifty years of news reading
    Victor “Ivan” Gracey, GI3WEM is stepping down as one of the GB2RS newsreaders for Northern Ireland after around 50 years of news reading. The RSGB would like to thank Ivan for his service to his fellow amateurs and wish him well in his re…
  • Beaches on the Air (BOTA)
    Sidney Friedman, ZS5SID has compiled a list of Blue Flag beaches in South Africa and submitted the list to Beaches on the Air…
  • Bouvet Island DXpedition – Fake news reports
    The Rebel DX Group have posted strong messages (on their FaceBook and Web pages) as well as a video about bogus news being reported on their planned operation to Bouvet Island. Here are their following posts/press releases which have been edited (due…
  • Vintage TV report on Amateur Television operation
    Arthur Bevington, G5KS and G6AFV/T, featured in this 1972 TV report about his amateur radio television station…
  • A large hole in the Sun’s atmosphere
    A large hole in the sun’s atmosphere is facing Earth and spewing a stream of solar wind in our direction…
  • The Doctor Will See You Now!
  • Radio hams prepared to help in emergencies
    ABC News 10 TV reports if there is a storm and the emergency communications system goes out, local amateur radio enthusiasts are prepared to help first responders…
  • WPT report now available from CEPT
    One area where the IARU and RSGB volunteers have been active is regarding concerns from wireless power transmission, or WPT. The latest development is the recent approval and publication of CEPT ECC Report-289 on high power WPT for electric vehicles,…
  • VDSL interference leaflet update
    The RSGB’s EMC committee has updated its advice leaflet number 15 on VDSL interference. This leaflet explains how to recognise VDSL interference and summarises the measures that people have found that helped to reduce the interference. It must be e…
  • Young Amateurs Radio Club Wants to Pair Youthful Contesters with Big Gun Stations
  • The Latest Episode of ARRL Audio News is Available
    Listen to the new episode of ARRL Audio News on your iOS or Android podcast app, or online at http://www.blubrry.com/arrlaudionews/. Audio News is also retransmitted on a number of FM repeaters. Click here and then scroll down to see the list. …
  • AO-85 operations re-started – telemetry requested
    As of 1324Z on January 26, control operator N8MH reported via Twitter that AO-85 has been returned to transponder mode, but will likely be switching in and out of safe mode. The satellite is open for use as power permits …
  • Germany: 2018 ham radio license statistics
    Germany’s Federal Network Agency, BNetzA, has released the amateur radio licence and exams statistics for 2018…
  • OrigamiSat-1 granted FO-98 OSCAR number
    On January 18, 2019, OrigamiSat-1 was launched on an Epsilon launch vehicle from the JAXA Uchinoura Space Center in Japan. The first satellite of the ORIGAMI (ORganizatIon of research Group on Advanced deployable Membrane structures for Innovative s…
  • Radio amateurs are always ready
    No matter what crisis situation, in the event of a failure of electricity and telecommunications networks, radio amateurs are the first to re-establish contact with the outside world…
  • Repeater Timeout kit launched
    Essex-based online store HAMtronics UK launched their new Repeater Timeout kit at the recent Langdon Hills Progression Night…
  • Why ham radio still has an enduring appeal
    The Canadian Broadcasting Corporation CBC reports amateur radio is not just a hobby. In a crisis, amateur radio operators provide a lifeline…

Top Amateur Radio Websites – Issue 1902

 

Amateur Radio News 05 2019

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Amateur Radio Stories:

Here is a recap of what happened in the web this week, through the eyes of the DXZone and other ham radio sources on the web.

  • Upcoming ARISS contact with Ashbury College Junior School, Ottawa, ON, Canada
    An International Space Station school contact has been planned with participants at Ashbury College Junior School, Ottawa, ON, Canada on 23 Feb …
  • Register now for the 2019 AMSATSA Space Symposium
    Book now for the 2019 AMSATSA Space Symposium. It will be held at the Accolade Conference Centre in Midrand just off the Ben Schoeman Highway…
  • ARRL Board of Directors Issues Statement on Amateur Radio Parity Act
  • Listen to an ISS contact
    An International Space Station school contact has been planned between David St-Jacques, KG5FYI and a school in Portugal. The event is scheduled for Saturday, 2 February 2019 at approximately 1523UTC. The conversation will be conducted in English and…
  • Slow-scan TV experiment on ISS
    The Inter-MAI amateur radio slow scan television experiment on the International Space Station is scheduled to be activated between Wednesday, 30 January and Friday, 1 February. It appears that the experiment will only be active during a couple of or…
  • John Robert Stratton, N5AUS, is New ARRL West Gulf Division Director
  • ICQ Podcast – Icom IC-9700 – First Impressions
    In this episode, Martin M1MRB is joined by Chris Howard M0TCH, Martin Rothwell M0SGL, Dan Romanchik KB6NU, Ed Durrant DD5LP and Frank Howell K4FMH to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episod…
  • China to Launch Two Amateur Radio Satellites in April
    Two new Chinese satellites with Amateur Radio payloads are planned for an April 5 launch, CAMSAT has reported.CAS-7A will carry H/T (21/29 MHz) and H/U (21/435 MHz) mode linear transponders, V/U linear and V/U FM transponders, a UHF CW telemetry beac…
  • Reports of Knacksat CubeSat Reception Requested
    The Knacksat 1U CubeSat launched on December 3 by a SpaceX vehicle may be in safe mode. The Knacksat project team at King Mongkut’s University of Technology-North Bangkok, Thailand, has speculated that launch delays may have led to battery depletio…
  • Reports of Knacksat CubeSat Reception Requested
    The Knacksat 1U CubeSat launched on December 3 by a SpaceX vehicle may be in safe mode. The Knacksat project team at King Mongkut’s University of Technology-North Bangkok, Thailand, has speculated that launch delays may have led to battery depletio…
  • Belgium radio hams respond to consultation
    Belgium’s national society the UBA reports on the reaction to the amateur radio consultation held by the regulator BIPT…
  • Tony’s 10m Band Report
    Thursday and Saturday were not too bad but it was a bit of a struggle on the other days. Most popular was 9LY1JM (Sierra Leone), HG8W (Hungary), VK8HW (Alice Springs, Australia) and ZY6C (Brazil)….
  • Ecuador operation
    Rick, NE8Z/HC1MD/SP9E is active until February 7th from Ecuador. He may also operate /portable from other HC prefix areas during this trip…
  • ARISS contact planned for students in Almada, Portugal
    An International Space Station school contact has been planned for David St-Jacques KG5FYI with Collagio Campo de Flores, Almada, Portugal…
  • The Latest Episode of ARRL Audio News is Available
    Listen to the new episode of ARRL Audio News on your iOS or Android podcast app, or online at http://www.blubrry.com/arrlaudionews/. Audio News is also retransmitted on a number of FM repeaters. Click here and then scroll down to see the list….
  • South Africa to support the IARU position on WRC-19 agenda items affecting Amateur Radio
    The two-day Industry WRC-19 Preparatory meeting held last week recommended that South Africa support the IARU position on agenda items that impact on Amateur Radio…
  • VK6WIA NewsWest
    This week’s theme is contesting and we have ideas on setting up a portable station, details on contesting champions and segments to get you thinking about taking part in the John Moyle field day, a world wide rtty contest, the commonwealth contest …
  • Secunda Radio Club – field station event
    The Secunda Radio Club, ZS6SRC will be active on the air from 18 – 27 January 2019 at the Trichardtsfontein Dam Yacht Club, a few kilometres from Secunda in Mpumalanga…
  • GRCon18: Open Source Radio Telescopes
    Who doesn’t like to look up at the night sky? But if you are into radio, there’s a whole different way to look using radio telescopes…
  • New 2200-Meter Beacon on the Air from Australia
    The Caboolture Radio Club (VK4QD) in Queensland, Australia, is now operating a beacon on 2200 meters on 137.444 kHz using the call sign VK4RBC. Australia’s telecommunications authority ACMA has granted permission for continuous operation of the bea…
  • IOTA news from OPDX
    Weekly IOTA News – compiled by Tedd Mirgliotta, KB8NW, editor of the Ohio/Penn DX Bulletin…
  • DXCC Country/Entity Report
    According to the Amateur Radio Cluster Network for the week of Sunday, 13th January, through Sunday, 20th January there were 208 countries active…
  • Vietnam operation
    Mats, RM2D (SM6LRR), will once again be active as XV9D from Phan Tiet between November 17-30th…
  • HamRadioNow: Elmercast!
    Jim Aspinwall NO1PC of the Amateur Radio Elmers Facebook Community talks to David Goldenberg W0DHG about Elmering (mentoring) and their joint effort to bring new content to the Amateur Radio Community!…
  • Quartzfest 2019 video
    Randy Hall K7AGE is one of the many radio amateurs attending this year’s Quartzfest in Arizona, January 20-26…

Amateur Radio News 04 2019

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Amateur Radio Stories:

Here is a recap of what happened in the web this week, through the eyes of the DXZone and other ham radio sources on the web.

  • December YOTA Month Activity Records More Than 80,000 Contacts
    More than 80,000 contacts went into logs at YOTA suffix stations and others participating in December Youngsters on the Air (YOTA) Month, with most operations in International Amateur Radio Union Region 1 (IARU-R1). The final tally included 46,989 on…
  • Tropospheric ducting event hits NBN fixed wireless services
    Australia’s WIA News report the NBN fixed Wireless Services in Northern Tasmania, South and East coast of Victoria suffered from a tropospheric ducting event in recent days and it is being handled as a major incident…
  • Update: Australian 2 x 1 contest calls
    “The item on the recent WIA news re: 2 x 1 contest calls was incorrect”, RASA President Glenn Dunstan VK4DU said…
  • VI25AJ astronaut contact a success
    The special event Amateur Radio station VI25AJ was active on the amateur satellites during the 25th Australian Scout Jamboree and on January 12 they had a contact with a former ISS astronaut…
  • SD contest logging software
    A little reminder that EI5DI has, over the past few years, developed some amateur radio software which may be of help to those seeking to carry out logging during HF Contesting…
  • Postage going up for U.S. and Canada
    The U.S. Postal Service announced new prices for 2019 and they come into effect Jan. 27, 2019. The Canadian Postal will also go up on January 14th…
  • US Islands Awards Program Announces 25th Anniversary Award, Recent Rule Changes
    The US Islands (USI) Awards Program celebrates its 25th anniversary this year and is offering a commemorative award for both chasers and activators for contacts made between January 1 and December 31.To qualify, chasers must confirm 25 islands during…
  • Court Rules Excessive Antenna Application Fees Violated Reasonable Accommodation
    Long-pending Amateur Radio antenna litigation that ARRL helped to fund has finally borne fruit. The Supreme Court of the State of New York, Appellate Division: Second Judicial Department has ruled in the case of Myles Landstein, N2EHG, that the Town …
  • Canadian op
    Chris/VO2AC, Frank/VO1HP, and Dave/VE9CB plan to operate the CQ WW 160m Contest from the Point Amour Lighthouse (WW Loc. GO11) in the south-eastern part of zone 2 as VO2AC…
  • AMSAT 50th Anniversary Awards Program
    To help celebrate 50 years of Keeping Amateur Radio in Space, AMSAT is proud to announce the AMSAT 50th Anniversary Awards Program. Throughout 2019, your satellite and HF QSOs can help you achieve one of these special awards…
  • Fox-1 CubeSat model kits available
    Through the dedicated work of John Kludt, K4SQC, and Stefan Wagener, VE4NSA, AMSAT can again offer a 1:1 scale cardboard model of the Fox-1 CubeSat…
  • Space Symposium paper proposal submissions close on Tuesday
    Some interesting subjects will be presented at the 2019 AMSAT SA Space Symposium on Saturday 16 March 2019 in Gauteng. Added to the agenda this past week is: Application of Artificial Intelligence to identify radio signals…
  • QSO Today – George Zafiropoulos KJ6VU
    George Zafiropoulos, KJ6VU, is the the co-host of the Ham Radio Workbench Podcast, one of the more popular ham radio podcasts …
  • 5 GHz HAMNET meeting in Amsterdam
    Netherland’s Ham News site reports almost all the lectures at the next MikroTik Meeting for HAMNET users will be in the English language…
  • 4th annual RST special event
    Look for members of the North Country DX Association (NCDXA) to once again be active from different locations in Alaska, Yukon, Northwest Territories, Nunavut and Greenland between January 15th and February 28th (some ops may be on earier or later)….
  • Announcing the 27th Annual Dayton Contest Dinner
    The North Coast Contesters are proud to announce:
    The 27th Annual Dayton Contest Dinner at the Crowne Plaza in downtown Dayton, Ohio…
  • Gabor Horvath, VE7JH, is Radio Amateurs of Canada 2018 Amateur of the Year
    Radio Amateurs of Canada (RAC) has announced that Gabor Horvath, VE7JH, is the recipient of the RAC Amateur of the Year Award for 2018. “Gabor has demonstrated an intense commitment to diverse aspects of Amateur Radio, and in 2010 he was recognized…
  • December YOTA Month 2018 Final Report
    Another December came and went, and with it another edition of December YOTA Month did as well. We are happy to host an event which brings young people – licensed HAM radio operators and youngster who are new to the hobby and are making their fir…
  • Beacon on 2 200 m
    The Caboolture Radio Club in Australia reports the start of operation of a new beacon on the 2 200 m band…
  • Japanese Ham Receives License to Operate in Myanmar
    Akio Taguchi, JE2QIZ/AC7XZ, reports that he has received a license from the Myanmar (formerly known as Burma) Ministry of Transportation and Communication. His call sign there will be XZ2B. Taguchi explained that Myanmar only permits Amateur Radio op…
  • Your New Year’s Resolution – Learn Morse Code!
    Now is the time to start! Morse classes commence at Danbury Village Hall at 7pm on Thursday, January 17, 2019…
  • A collision in the asteroid belt
    Something violent just happened in the asteroid belt. Not far beyond the orbit of Mars, asteroid 6478 Gault appears to have been struck by another asteroid…
  • German satellite special event
    AMSAT’s 50th anniversary will be celebrated with the special event callsign DL50AMSAT…
  • SOTABEAMS introduces SOTA Tours
    The Summits on the Air award programme runs in many countries across the world with SOTA activators keen to explore. SOTABEAMS has introduced the concept of a “SOTA Tour”. This is a guided trip, giving overseas SOTA activators a stress-free way of ac…
  • Over-the-Horizon Radar Reported on 15 Meters
    The International Amateur Radio Union Region 1 (IARU-R1) Monitoring System (IARUMS) reports that an over-the-horizon (OTH) radar located on Cyprus has been active on 21.170 MHz, which is inside an exclusive Amateur Radio allocation. “The Sovereign …

Amateur Radio News 03 2019

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Amateur Radio Stories:

Here is a recap of what happened in the web this week, through the eyes of the DXZone and other ham radio sources on the web.

Top Amateur Radio Websites – Issue 1901

Up close and hands-on with the new Yaesu FTDX101D

YAESU FTDX101D Videos

Yaesu Logo at dxzone.comAfter last year’s announcement, made during the Hamvention 2018, Yaesu has just started delivering the first FTDX101 transceivers to Europe.

Here some of the very first videos uploaded to youtube of the new SDR Transceiver by Yaesu. We expect some more will appean in next days.

Youtube Videos are produced by ML&S

FTDX101MP
FTDX101MP

CQ Kids Day – Promote Amateur Radio to Youth

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The 5th of January it’s again Kids Day. This event is especially created to promote Amateur Radio to youth. This is a moment where you can share your amateur radio hobby with your family, grandkids, friends, scouts or even to the general public. This day can be the first time for youth to experience a real radio QSO, hopefully they get interested in becoming a licensed amateur radio operator.

You could make use of this suggested exchange: Name, age, location and favourite colour. Be sure to work the same station again if an operator has changed. To draw attention, call “CQ Kids Day.”

Suggested frequencies IARU R1:
10 Meters: 28.350 to 28.400 MHz
15 Meters: 21.360 to 21.400 MHz
20 Meters: 14.270 to 14.300 MHz
40 Meters: 7.080 to 7.120 MHz
80 Meters: 3.650 to 3.750 MHz

Other suggested frequencies by ARRL:
12 Meters: 24.960 to 24.980 MHz
17 Meters: 18.140 to 18.145 MHz
40 Meters: 7.270 to 7.290 MHz
80 Meters: 3.740 to 3.940 MHz

Next Kids Day will be 15 June 2019.

Amateur Radio News 01 2019

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Amateur Radio Stories:

Here is a recap of what happened in the web this week, through the eyes of the DXZone and other ham radio sources on the web.

  • Amazing Christmas 70cm contacts
    On the 22 of December two amazing contacts took place on 70cm EME (moon bounce)…
  • Denby Dale members get special callsigns
    Members of the Denby Dale Amateur Radio Society will be active with the following special event calls between Dec. 28 and Jan. 24…
  • ISS Fan Club closing down on January 1st 2019
    After almost 17 years of service to the amateur radio community, the issfanclub.com site will shut down on January 1st 2019…
  • Radio hams ready to support Tsunami relief efforts
    Please be informed that tsunami was happened on the evening of Dec 22, around 2130 local time. At least 43 people have been killed and 584 injured after a tsunami hit the coast around Indonesia’s Sunda Strait, government officials say…
  • First flight of the Junkers F13
    The first all-metal built airplane, the Junkers F13, was introduced to civil aviation 100 years ago…
  • IOTA news from the DARC
    Compiled by Andreas, DK5ON of the Deutscher Amateur Radio Club…
  • Special prefix for Switzerland
    The Swiss national radio society Union Schweizerischer Kurzwellen Amateure (USKA) will celebrate its 90th anniversary in 2019…
  • Ham radio exam success in Cuba
    The FRC report a 96.95% pass rate in the amateur radio exams held in Cuba on December 22, 2018…
  • Remembering the heyday of amateur radio
    The following special event stations are drawing attention to KW Electronics Ltd and their rigs from the heyday of amateur radio…
  • WIA Board Comment
    Although some 3 broadcasts since our last WIA Board Comment, when President Justin VK7TW brought us up to speed on WIA activity a Christmas Message from the board was posted on the main wia.org.au site…
  • Propagation de K7RA
    No sunspots over our reporting week, December 20-26, so compared to the previous seven days average daily sunspot number declined from 3.4 to 0…
  • Spotless sun sparks geomagnetic storm
    Solar Minimum is in full swing. No sunspots? No problem …
  • AMSAT SA 2 m / 70 cm dual band Yagi antenna is now available
    AMSAT SA have made available a new dual-band 145/435 MHz Yagi antenna for amateur satellite operation. The Yagi has a unique element called an ‘Open Sleeve’ which is a director very close to the driven element…
  • 2019 SARL Contest Manual and Diary of Events
    The 2019 SARL Contest Manual and the 2019 Diary of Events are both available for download from the League web site
  • Ofcom makes ham radio G5 plus 3 letter calls available
    Ofcom have recently started issuing G5 + 3 letter callsigns to radio amateurs…
  • Radio activity youngsters will enjoy
    The Shropshire Star’s Toby Neal reports on amateur radio enthusiasts who are offering to help youngsters beat the post-Christmas blues with a technology and communications activity day in Wellington…
  • Tony’s 10m Band Report
    Real poor again, except for Wednesday. When will it ever end and get back to normal, whatever normal is in Amateur Radio. Strangest call of the week probably SN1918WAR (Poland). Words fail me! Most current topical call PD18SANTA. Again words fail me….
  • Mississippi Valley DX/Contest Club
    The Mississippi Valley DX/Contest Club (MVDX/CC) is an ARRL affiliated Amateur Radio club in the St. Louis Missouri and Southern Illinois area…
  • Foundations of Amateur Radio #186
    Over the past year and a half I’ve been working on a secret project. Today I’d like to share what I’ve been up to…
  • January-February 2019 eTCA now avaliable
    The Canadian Amateur (TCA), Canada’s premiere national magazine devoted to Amateur Radio, is published six times per year and is the membership journal of the Radio Amateurs of Canada (RAC)…
  • VK6WIA NewsWest
    NewsWest for 30th December 2019 is the final edition for 2018. It’s a special programme to look at what we got up to and what’s ahead of us…
  • AM stations fall silent
    Chris Greenway has tweeted about the closure of AM Medium Wave stations in Belgium and the Netherlands on December 31…
  • In-Orbit test (IOT) of Es’hail-2 AMSAT P4-A transponders
    AMSAT-DL notes that the In-Orbit testing (IOT) of the P4-A ham radio transponders on Es’hail-2 have started…
  • ICQPodcast – When HF is Quiet
    In this episode, Martin M1MRB is joined by Chris Howard M0TCH , Martin Rothwell M0SGL, Dan Romanchik KB6NU, Ed Durrant DD5LP and Frank Howell K4FMH to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episo…
  • DXCC Country/Entity Report
    According to the Amateur Radio Cluster Network for the week of Sunday, 16th December, through Sunday, 23rd December there were 211 countries active…