A question from an Oggie prompted this look at the use of transponders in amateur radio.
Antenna
20′ DX Flagpole Antenna | OCF HF Vertical Dipole | 3.5 to 50 MHz No Radials, Stealth, Portable
OCF HF Vertical Dipole Higher performance, HF Multiband DX Flagpole Antenna covering 3.5 to 50MHz with NO radials sound like relief for your CC&R... Read more
MAX6 -Antenna Analyzers
Antenna Analyzers MAX6 antenna analyzer is not just an ordinary meter for antenna – it’s much more! Built-in radio signal meter allows you to... Read more
“Antenna Wire” is the topic of the latest episode of the “ARRL The Doctor is In”
“Antenna Wire” is the topic of the latest (January 18) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! More than a half-mill... Read more
2 Meter & 70 Centimeter Mobile Halo Antenna Project
“I have wanted to try 2 meter SSB mobile for some time but did not have a horizontally polarized antenna to try it out. Since I had success buil... Read more
Review
Output Power vs. S-Units
“This is one of the most important concepts in ham radio… the relationship between transmitted power and received signal strength. Sadly,... Read more
Review of RigExpert AA-55 ZOOM Antenna and Cable Analyzer
“This video is a comprehensive review of the functions and operation of the RigExpert AA-55 ZOOM Antenna and Cable analyzer. This lightweight po... Read more
WA9ZCO Wins the February QST Cover Plaque Award
The winning article for the February 2020 QST Cover Plaque award is “CW Combo Key” by Marc Alan Winzenried, WA9ZCO. The QST Cover Plaque Award —... Read more
Retevis RT84 Dual Band DMR Handheld Review
“A new dual band DMR HT is on the market from Retevis, with a model number of RT84. In this video, we try to load an RT82 codeplug into the radi... Read more
SunSDR2 PRO Review by RadCom
A powerful HF to VHF transceiver from Expert Electronics The SunSDR2 PRO is the latest transceiver from Russian company, Expert Electronics, and packs... Read more
Equipment
QRPGuys K8TND Regenerative Receiver – $40
“How better to explore the world of shortwave listening than with a regenerative receiver. The QRPGuys K8TND Regenerative Receiver covers the 60... Read more
Icom IC-R8500 Communications Receiver
Icom IC-R8500 Wide Frequency coverage. The IC-R8500 covers a wide frequency range continuously from 0.1 to 2000 MHz,* with 10 Hz resolution, while mai... Read more
RS-918SSB HF SDR Transceiver
Spectrum Dynamic Waterfall Display Multiple Working Modes: Receive Mode, Transmit Mode, TUNE Mode, VFO Mode, SPLIT Mode DSP Digital Signal Processing... Read more
Elecraft KX2 – Manual , DataSheet and Block Diagram
Elecraft KX2 An 80-10 m SSB/CW/Data station that fits in your pocket! Our KX2 “stealth” transceiver can go wherever your imagination takes you. Thank... Read more
JUMA PA1000 1Kw HF + 6 meters
Overview JUMA PA1000 is a very light weight solid state 1 kW linear amplifier for HF and 6 meter bands. JUMA PA1000 is using a most modern LD... Read more
News
Mysterious Radio Signal Discovered in Milky Way Center | What Is It!?
Ziteng (Andy) Wang is a PhD student at the University of Sydney. He recently discovered an unusual radio signal coming from the direction of the Milky... Read more
TRI BAND TRANSCEIVER – RS-UV3A
The HobbyPCB RS-UV3A radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3A is a low cost transceiver solution for Packet Radio, repeater... Read more
ARRL Continues Its Efforts to Preserve Amateur Radio Secondary Use of the 3 GHz Band
ARRL President Rick Roderick, K5UR, in a written statement on the newly filed H.R.5378 before the US House Commerce Communications and Technology Subc... Read more
![Why Ham Radio [ ARRL Video ]](https://qrznow.com/wp-content/uploads/2021/10/hq720-1-265x168.jpg)
Why Ham Radio [ ARRL Video ]
Josh Nass, KI6NAZ, of @Ham Radio Crash Course talks about what ham radio is, and answers the question…. “Why Ham Radio?” Read more
High Speed Telegraphy 2021 in Montenegro
September 10-14, 2021, the 17th World Championship High Speed Telegraphy was held in Montenegro. The event was organized by MARP (Montenegrin Amateur... Read more
![Fldigi v3.23.21 now available [ Free Download ]](https://qrznow.com/wp-content/uploads/2017/02/fldigi_Main_Pic-265x168.png)
![Real-time Radio Spectrum Map Database Demo [ Android App ]](https://qrznow.com/wp-content/uploads/2021/10/maxresdefault-3-1-90x60.jpg)
![Real-time Radio Spectrum Map Database Demo [ Android App ]](https://qrznow.com/wp-content/uploads/2021/10/maxresdefault-3-1-180x120.jpg)