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The latest IARU-R1 Monitoring System newsletter reports on the continuing interference on various frequencies in the 7 MHz band from Russian language propaganda broadcasts Over The Horizon Radar (OTHR) systems in the Russian Federation and China continue to cause interference in the amateur 14 and 21 MHz bands and Iran has been operating a radar in the 21 and 28 MHz bands. The International Amateur Radio Union Monitoring System (IARUMS) Region 1 June 2020 newsletter can be read at Recordings of military transmissions can be found on the Signal Identification Guide Wiki at Monitor the short wave bands on-line with a web based SDR receiver at IARU Monitoring System (IARUMS) Source:http://www.southgatearc.org/
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Antenna
The 10 Meter Loop Antenna by KG0ZZ
Loop antennas are a favorite among hams. They are a simple design and offer more gain than a half wave dipole antenna. A full wavelength loop antenna... Read more
7 courtyard or balcony HF antenna ideas for small spaces
Got little space at home? Live in a townhouse, apartment or villa? That doesn’t mean you can’t play HF. Watch for ideas on HF antennas in... Read more
How to Build Cheap Wire Delta Loop Antenna
How to Build Cheap Wire Delta Loop Antenna – Love them or Hate them! Read more
Review
Sealinng Coax Connectors and Coax Cable from the Weather
Jim Heath W6LG shows how he seals two PL259’s and a bulkhead connector New, FSJ4-50B Andrew 1/2″ “Superflex” PL-259 (Male UHF) RF Heliax Coax Co... Read more
SharkRF Openspot 4 Pro Setup – FIRST LOOK!
SharkRF Openspot 4 This is my first look at the physical size and menu features of the new Openspot 4 Pro from SharkRF. The openSPOT4 is our latest ba... Read more
A close look at the MFJ-1708SDR T/R switch
“Want to use your SDR as a panadapter while you’re operating your transceiver? The MFJ-1708SDR lets you do that by connecting the SDR ante... Read more
Buddipole PowerPlus | Rugged Portable DC Power Management System
DESCRIPTION Rugged Portable DC Power Management System with built-in High-Efficiency Battery Charger! > High contrast OLED display > Power manag... Read more
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VHF
SAMCOM Mini Mobile Radio 218
SAMCOM Mini Mobile Radio 218 Key Specifications Frequency Range V:136.000MHz-174.000MHz V:220.000MHz-248.000MHz U:400.000MHz-470.000MHz System F3E(FM)... Read more
CS-750 DMR Radio
CS-750 The case and accessories are the same as the CS-700 The Radio and software are very different Good Audio with adjustment in the software Join t... Read more
Changes to the RSGB 50MHz awards
The RSGB Awards Manager has reviewed the current 50MHz awards offered by the Society and concluded that the existing 50MHz 2-Way Countries a... Read more
G-Series P25 – VHF UHF and 700-800 MHz
VIDEO http://www.unicationusa.com/ Read more
Iridium Command Center Explanation – ICOM
Icom’s satellite radios utilize Iridium’s constellation of Low Earth Orbit satellites. With this network, you can set up to 2,250,000 square kilometer... Read more
News
Amateur Radio Comes of Age in Connecticut
By Michael Marinaro Founded in Connecticut in 1914, the American Radio Relay League is the national membership association for Amateur Radio op... Read more
DK2OM receives IARU Diamond Award on retirement from his role as IARUMS coordinator
After many years’ involvement in monitoring intruders on the amateur bands, Wolf Hadel, DK2OM, has decided to retire at the end of 2019. Wolf has work... Read more
“Quantum Radio” May Offer New Twist on Communicating in Problematic Environments
Photo:NIST physicist Dave Howe aligns a laser beam to pass through a tiny glass cell of rubidium atoms inside the cylindrical magnetic shield. The ato... Read more
Ham Radio Deluxe Blacklist Official Apology
Dr. Michael Carper, Co-Owner, HRD Software, LLC Open Letter to Our Customers Valued customers: I’ve received many questions from our customers and dea... Read more
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