The repeter antenna of the ISS
Source: URE
Antenna
An end fed half wave cage antenna. How much wider bandwidth does it provide?
Another comparison between a single wire and a cage arrangement. This time on the end fed half wave antenna. Read more
Buddipole vs AlexLoop Walkham
Buddipole vs AlexLoop Walkham “Tried to do the most objective analysis on a comparison between the Buddipole and a AlexLoop Walkham ante... Read more
![Antenna Analyzers – ARRL The Doctor is In [Podcast]](https://qrznow.com/wp-content/uploads/2017/08/DXEPartType_Antenna-Analyzers-265x168.jpg)
![NVIS: Near Vertical Incidence Skywave [ PodCast ]](https://qrznow.com/wp-content/uploads/2017/11/24180150-265x168.jpg)
NVIS: Near Vertical Incidence Skywave [ PodCast ]
Sometimes the best direction to send your signal is straight up! Near vertical incidence skywave, or NVIS, is a skywave radio-wave propagation path... Read more
BOLPA-10 A Super Wide Band, High Performance Log Periodic Dipole Array (LPDA) – 14MHz to 30MHz Optimised for all Ham Bands Just 7.7m long
Hockley Essex, United Kingdom – InnovAntennas Limited, The premier supplier of sophisticated and Innovative directional antenna systems announces toda... Read more
Review
HF Interference Problem from Ethernet over Powerlines Devices
“Testing to see how bad powerline internet connections can be for HF reception. These devices allow you to use your house power cables as a conv... Read more
The New ICOM IC-7610 in operation
Opening and making a QSO with the new ICOM IC-7610 from DX Engineering in Tallmadge Ohio to Grass Valley, California. Tim Duffy, K3LR using the IC-761... Read more
“This week I’m reviewing the Openspot by Shark RF. No images to hunt down, It runs D-Star, DMR & Fusion all in one box. Don’t fo... Read more
Introduction to the SOTABeams Wolfwave
SOTABeams Features Fully adjustable audio band-pass filtering instantly adjustable for voice, data and CW (b/w 50 Hz to 5 kHz) VIDEO State-of-the-art... Read more
Equipment
Hilberling HPA-8000B-54 Power Amplifier
HPA-8000B-54 1kW Out Linear Amplifier 1.8 … 54 MHz Amateur Radio Bands 160 / 80 / 40 / 30 / 20 17 / 15 / 12 / 10 / 6 m All-Mode AM / FM / SSB /... Read more
CW TOUCH PADDLES
Product Features and use: · Electronic keyer paddles using electrostatic touch paddle technology · Because there are no moving par... Read more
Introducing QCX-mini 5W CW transceiver!
The miniature version of our popular QCX 5W CW transceiver, with special portable-friendly features for SOTA and other portable operators: – Sma... Read more
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
PPG100 Portable Power Generator
Midland Radio has been a show participant at the Consumer Electronics Show for several decades. Long an industry leader in two-way radio technology in... 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
![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)