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 
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Right on schedule at 1249 UTC on October 8, the Atlas rocket carrying the AMSAT Fox-1A Amateur Radio CubeSat and 12 others lifted off from Vandenberg Air Force Base in California on the National Reconnaissance Office (NRO) NROL-55 mission.... Read more
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Retevis RT90 Mobile Dual Band DMR Mobile Radio Review – Part 1
Description： RT90 supports analog and digital mode, It provides dual band, dual standby, dual display, dual time slot, operating on both 400-480MHz UH... Read more
The K7RA Solar Update
“Average daily sunspot numbers rose substantially over the past week, from 97.4 in the previous seven days to 152 for the most recent. Average d... Read more
California Radio Amateur Receives Notice of Unlicensed Operation from FCC
The FCC Enforcement Bureau on November 7 issued a Notice of Unlicensed Operation (NoUO) to Technician licensee Daryl Thomas, KE6MWS, of Carmichael, Ca... Read more
![Icom IC-7610 [ Video ]](https://qrznow.com/wp-content/uploads/2016/12/IC-7610-icom-190x122.jpg)
Icom IC-7610 [ Video ]
Icom IC-7610 Read more
ID-5100E Firmware Update Release E3 and CS-5100 Cloning Software Update Ver. 1.20
Icom ID-5100E Icom have published a significant firmware upgrade for the ID-5100 Dual band D-STAR transceiver and cloning/programming software... Read more
ARRL Centennial Convention DVD
The ARRL is making available a DVD of ARRL Centennial Convention Guest Speaker Presentations. The ARRL National Centennial Convention last July... Read more
Ham radio operator points to streetlight for interference in Croydon
Ham radio operator points to streetlight for interference in Croydon. Video by William Thomas Cain; 1 hr ago; 0. Charles Dillenbeck believes ne... Read more
CIA Declassified Documents about Amateur Radio Available in Searchable Online Database
Central Intelligence Agency (CIA) reports about Amateur Radio in the former Soviet Union (including the Baltic States) and Warsaw Pact member countrie... Read more
Amateur Radio Being Showcased at 2019 EAA AirVenture in Oshkosh, Wisconsin
ARRL member-volunteers will be part of the excitement as the 2019 International Experimental Aircraft Association annual AirVenture show gets under wa... Read more
Bryant Rascoll, KG5HVO, is 2018 Newsline Young Ham of the Year
Fourteen-year-old ARRL member Bryant Rascoll, KG5HVO, of Montgomery, Alabama, has been selected as the 2018 Bill Pasternak WA6ITF Memorial Amateur Rad... Read more
Arecibo Observatory Reflector Dish Damaged after Cable Snaps
An auxiliary cable that helps to support a metal platform above the Arecibo Observatory radio telescope’s reflector dish in Puerto Rico snapped in the... Read more
FCC Speedily Dismisses Petitions to Alter Amateur Service Rules
Acting with near lightning speed, the FCC has dismissed two petitions for rule making calling for separate amendments to the Part 97 Amateur Service r... Read more
Chameleon EmComm III Portable End Fed Antenna Review
The EMCOMM III Portable antenna is a portable High Frequency (HF) antenna specially designed for short to long range portable and man-pack HF comm... Read more
How Strong are the DX Engineering End Insulators?
Over 6 years ago, DX Engineering introduced the patented (US Patent No. D534,905) serpentine style end insulators (DXE-UWA-END-KIT) which are c... Read more
Strong Earthquake Shakes Puerto Rico, ARES Standing By
A strong magnitude 6.4 earthquake hit Puerto Rico early on January 7 on the heels of a smaller magnitude 5.8 tremor a day earlier. The Puerto Rico Ele... Read more
