Sorry, this entry is only available in German. For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. RRDXA DX Dinner Der Restart der Hamradio steht vor der Tür und die RRDXA möchte am Freitag den 24.6. zum RRDXA DX […]
Während die transformatorische Anpassung über einen großen Frequenzbereich funktioniert, ist die Anpassung über Transformationsleitung (üblicherweise 1/4 Wellenleitung) toleranter gegenüber Fehlanpassungen. Hierdurch entstehen größere nutzbare Bandbreiten. Dadurch, dass beim Viertelwellen-Leitungstrafo immer das geometrische Mittel aus Eingangsimpedanz und Wellenwiderstand der Leitung bestimmt wird, weicht der Ausgangswiderstand auch weniger stark vom Wellenwiderstand ab. Es findet quasi eine Art […]
At the WRTC 2022 Association Assembly on 23 April 2021, having previously consulted the WRTC Sanctioning Committee, the assembly and Organizing Committee decided to postpone WRTC 2022 one year to 2023. For details see WRTC Webpage.
There is a general tendency towards short log deadlines. For instance, the due-date for the Russian DX-Contest is already 4th of April and for CQ WPX SSB already 2nd April 2021. The other rule changes for the WPX are summarized in the blog on their webpage. Thus, please upload your log early and note the […]
Randy (K5ZD), CQ WPX Web manager, reports about a new activity-map for the WPX, a nice link to play :-): We are always looking for new and interesting ways to present the results of the CQ WPX Contest. Thanks to the efforts of Tom Morrison, K5TM, we can now display the number of entries […]
John ON4UN was an RRDXA member since the early sixties. While doing background research at his untimely passing, we came across this video: https://youtu.be/uoQWrOTK-k0 The OT3T contest video is a detailed account on how John and his team prepared the station for the 1993 CQWW SSB contest. And how the contest was run (including strategy, […]
In deep mourning the Rhein-Ruhr-DX-Association has to announce that John, ON4UN, has become silent key. John´s contributions were honoured through his membership in RRDXA hall of fame. The sad news was given by his daughter. His radio activities and station setup will always be remembered. With John, ON4UN, we have lost a most valuable radio friend […]
Helmut reports with astonishing photos from Madeira, CQWW SSB 2020: DF7EE Webpage CQ3W CQ WW SSB 2020
Norbert, DJ7JC, reports from Island with amazing pictures and text: DJ7JC Blog
Potentially preaching to the converted: In addition to individual scores there are club competitions in all major contests. In Germany there are two big Contestclubs Bavarian Contestclub: www.bavarian-contest-club.de und Rhein Ruhr DX Association: https://rrdxa.org/ In addition to Club-competitions these Clubs offer other benefits, such as: Exchange of information, education and training for members or social […]
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