DARPA, through its Innovative Vacuum Electronic Science and Technology (INVEST) program, aims to develop the science and technology base for new generations of more capable vacuum tube electronic devices (VEDs).
Those microwaves that heat the food in your microwave oven come from a magnetron, the vacuum tube that made radar possible in the first half of the 20th century. Traveling wave tubes (TWTs), not solid-state amplifiers, generate the strong electromagnetic signals in communication satellites because of their exceptional on-orbit reliability and high power efficiency. Tubes are not dead!….READ MORE
Special event stations are on the air to commemorate the 76th anniversary of the attack on Pearl Harbor in 1941. The Azalea Coast Amateur Radio club (... Read more
Project by N.Ganesan & I.Arun Silver series (Low range) for Beginners Gold series (Mid range) for Amateurs Diamond series (High range) for Profess... Read more
A Calaveras County, California, radio amateur — Mark McCloud, K6YCV — fell victim to the Butte Fire on September 16. He was one of two fatalities that... Read more
40 Meter Dipole “I enjoyed putting these pieces together from MFJ Hy Gain, MFJ Cushcraft, Texas Towers, M2 and our local hardware store t... Read more
The Yaesu FT DX 3000 – Building on the YAESU FT DX Heritage The FT DX 3000 is member of the long line of top performing YAESU FT DX Series of tr... Read more
Ham Radio Mesh Networking has been one of those things that I’ve wanted to learn about. After a quick peek around and a few questions asked, I stumbl... Read more
The ANAN-8000DLE HF & 6M 200W SDR Transceiver meets and exceeds the requirements of even the most discerning Amateur Radio Operator, it is based o... Read more
The SAQ Alexanderson Alternator VLF transmitter at the World Heritage Grimeton site in Sweden will be on the air to mark United Nations Day, October 2... Read more
Hold a mega-station in the palm of your hand. Wherever you are, you can work DX and log it. Operate from our 18 unique stations to snag a new country,... Read more
The Alpha 9500 is no ordinary linear amplifier. The Alpha 9500 is the culmination of over 40 years of design and engineering. The Alpha 9500 is an adv... Read more
➤ UP TO 8 MILES RANGE: A further and more impressive communication range comes from the 10W high power feature. The Radioddity GA-510 can be set in 3... Read more
“Hey Folks! Version 0.10.0 of JS8Call has been released. Upgrade to the latest and greatest here: https://groups.io/g/js8call/wiki/Download-Lin... Read more
For years now Hams and Shortwave Listeners have been building antennas out of that great American toy: The Slinky. In this video we string two out to... Read more
OBLY25-5 25 Element Log Yagi 20-17-15-12-10m Bands 20 / 17 / 15 / 12 / 10 Gain (dBd) * 7,4 / 7,4 / 7,4 / 7,4 / 7,4 Gain (dBi) ** 14,7 /... Read more
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Pearl Harbor Commemorative Special Events on the Air
GEK SSB HF Transceiver
California Radio Amateur is Wildfire Victim
Building a 40 Meter Rotatable Dipole
Yaesu FT DX 3000
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Amateur Radio Emer Data Network A.R.E.D.N. [ PodCast ]
ANAN-8000DLE HF & 6M 200W SDR Transeiver
SAQ Alexanderson Alternator VLF Transmission set for UN Day, October 24
New! RemoteHamRadio App
Alpha 9500 Autotune Full Legal Limit Linear Amplifier
Radioddity GA-510 10-Watt Handheld Review
JS8Call 0.10.0 Released – A new ACTIVE / IDLE flag for Hearbeats, CQ repeats on an interval, and ADIF mode update!
SDR Receiver with a Slinky Antenna
25 Element Log Yagi 20-17-15-12-10m
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