Archivy autorů:ok1tk

This WSPR test of the Yaesu ATAS-120A was carried out from the same location as the previous one, this time in hot and sunny weather. The goal was to check how repeatable the results were and to see how the current conditions affected the antenna’s performance. The test started with the same setup as before,Pokračovat ve čtení „Another WSPR Field Test of the Yaesu ATAS-120A“

After making several improvements to the antenna’s counterpoise system and portable setup, I finally had the opportunity to evaluate the Yaesu ATAS-120A under real-world WSPR operating conditions. The primary goal of this outing was to compare the antenna’s performance on the 10 m, 12 m, 15 m, and 17 m amateur bands. I also plannedPokračovat ve čtení „WSPR Field Test of the Yaesu ATAS-120A“

As part of my portable station, I wanted to use a Yaesu ATAS-120A antenna on a K&F Concept K234A7 tripod. This led me to design a custom mount that could accommodate both the antenna and the WiMo Counterpoise Kit. The full article includes technical drawings, assembly photographs and details of two different mounting configurations. 👉Pokračovat ve čtení „ATAS-120A Tripod Mounting System“

I was pleasantly surprised by my results in the CQ WW RTTY Contest 2025 😊

On Sunday July 28th at about 10:55 UTC a made my first three QSOs via satellite. It was the Saudi-OSCAR 50 (SO-50) satellite. Unfortunately no camera was at this time. Later the same day I tried another attempt via the same satellite and I made two QSOs with Ukrainian HAM radio stations.

Prague, JO70FB, 27.07.2024, AOS 16:58 Testing our new ARROW II Satellite antenna setup with home made antenna holder mounted on a Velbon tripod. We used two OpenGD77 radios, Retevis RT3S for Rx and TYT MD-UV390 Plus 10W for Tx. With the possibility to adjust the polarisation the reception was much more better. Unfortunately there wasPokračovat ve čtení „ISS Tracking“

Our first test of the ARROW II portable Yagi antenna for Satellite 146/437MHz with the Radioddity GD-88 TRX. Listening to the SO-50 satellite in the JO80ac locator.

During the 87th Men’s World Ice Hockey Championship, station OK1TK and club station OK1RJO participated in a diploma contest for contacts made with occasional stations OL87DL, OL87F, OL87G, OL87HB, OL87LA, OL87OH, OL87OK, OL87SPOM, OL87OL8OL8OL , OL87W, OL87YL and received the following diplomas:

Diplomas obtained by stations mi OK1RJO and OK1TK during the month of April 2024 as part of the competition of 75th ANNIVERSARY Unión de Radioaficionados Españoles.