Crystal Radio constructed with unusually large passive components with the goal of obtaining an extremely high Q. Variable capacitor from a B-17 Bomber’s antenna tuner and the final tank coil from a 50KW AM Broadcast transmitter
once used by Chicago area WMAQ Radio’s Continental equipment are employed for outstanding performance.
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DU3500AL Automatic Tuner by HA8DU Frequency range : 1,8-30MHz Matching range : max power 5:1 SWR 1,8MHz 35 ohm – 150 ohm 3,5MHz 35 ohm – 150 ohm 7 MHz 25 ohm – 200 ohm 10 MHz 25 ohm – ... Read more
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Review of MFJ-8504B RF Receiver Distribution Amplifier
Review of MFJ-8504B RF Receiver Distribution Amplifier Read more
In the Arctic, the radar “Sunflower” will be deployed in 2017
“According to him, this time the Russian defense Ministry plans to purchase several radar: like the Arctic and the southern and Western borders... Read more
YL Raisa introduces how to spell Russian Callsigns during a QSO
YL Raisa introduces how to spell Russian Callsigns during a QSO Read more
Soviet Union (Russian) Military Radiotelegraph Key via Finland
“Jouni Hiltunen, OH2GVD, sent me this old Soviet Union (Russia, for those of you too young to remember the cold war) military radiotelegraph key... Read more
Introducing . . . New MFJ CWMorse Micro Telegraph Keys
MFJ-566M, $29,95 Red/Black Micro Morse Code Key with aluminum base. Liquid smooth and shielded steel ball bearings. Hardened steel pin rotation and st... Read more
NEW LINUX UBUNTU DISTRIBUTION MADE FOR SOFTWARE DEFINED RADIO
“Welcome to the first release of Skywave Linux! This is an operating system designed to provide access to a growing network of software defined... Read more
ARRL Rookie Roundup RTTY Event is August 16
The ARRL Rookie Roundup returns to RTTY Sunday, August 16, 1800 UTC through 2359 UTC. For the purposes of this operating event, a “Rookie” is any radi... Read more
Nominations Sought for 2018 ARRL Bill Leonard Award
The ARRL Public Relations Committee is seeking nominations for the 2018 Bill Leonard Award, which recognizes this year’s best newspaper, radio, or tel... Read more
ARRL Member Had Role in Promising RF Treatment Device for Alzheimer’s
ARRL Member Had Role in Promising RF Treatment Device for Alzheimer’s ARRL member Eric Knight, KB1EHE, played a role in the development of an RF-based... Read more
Radio Direction Finder DF2020T
Radio Direction Finder FUNCTIONS Multi Display – Numeric & 36 LED pelorus display Compatible with APRS software Can use with “Navi2020” map plotti... Read more
Tim Allen “Mike KA0XTT” – Last Man Standing
Last Man Standing – Tim Allen Ham Radio Actor and comedian Tim Allen now not only plays an Amateur Radio operator on television, he is one! Alle... Read more
DxGlider52: Ultimate DX-Contest Tribander 18 elements ~ 52ft boom
18 elements ~ 52ft boom ~ Amazing! WA3FET has done it again! The aptly named DX Glider is the Ultimate Triband Yagi. No compromise monoband pe... Read more
New release of PoC transceiver ICOM IP501H
Product name / Type name IP ADVANCED RADIO SYSTEM PoC Transceiver / IP501H Suggested retail price Open price Release date Release in mid-February 2017... Read more