Lee, K1VZI communicates with his friend hundreds of miles away through a satellite passing overhead. He gave me a demonstration of how it is done using mapping software and automatic positioning directional antennas. This contact was done in CW mode (Morse code) transmitting on 70cm and receiving on 2m. Notice the frequency shift with dopplar effect and the need to constantly adjust the dials as the satellite is zooming overhead!
“The harsh winter of 2020/2021 has also left its mark on Europe’s highest amateur radio remote station on Rigi Scheidegg in the middle of Switzerland. The two operators and proje... Read more
by Pennyloop The Pennyloop UHF antenna offers high performance in a very simple and cost effective design. It is also a very compact design lending itself well to a variety of mounting optio... Read more
All Alpha Antennas are handmade & built to order. We appreciate your pride & patience in your antenna system as it is prepared. The Alpha MOTO provides you with the most Rugged and C... Read more
A long time has passed since we have to accept the negative aspects of matching Yagi antennas. With modern software, knowledge and optimisation techniques, there is no reason for a Yagi to h... Read more
JIm, W6LG shows how he recently used 2 off the shelf coax switches to connect 2 antennas to his transceiver at the same time. This simple solution replaced a box with vacuum relays, a contro... Read more
EZ HANG’S BASIC CONSTRUCTION IS A WELDED STEEL ROD ATTACHED TO A REEL THAT IS CORROSION RESISTANT PLASTIC AND STAINLESS STEEL. THE REEL COMES WITH 300 FEET OF 10-POUND-TEST MONOFILAMENT LINE... Read more
This is OCF antenna also known as Windom antenna fed at 19% of one end. Current type 4:1 (200:50 Ohms) BALUN is another product designed for OCF antennas (Off Center Fed) also known as Windo... Read more
Barker & Williamson’s BWDS series of broadband folded dipole antennas, together with our MK114 or MK112 mast systems, gives rear tactical and base units the full HF communications... Read more
The National Institute of Standards and Technology (NIST) has been pioneering antenna measurement methods for decades, but a new robot may be the ultimate innovation, extending measurements... Read more
Build your own Roll Up Slim Jim Antenna for the 2 Meter Ham Radio Band. Read more
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