I was able to get a used 40dB power attenuator from a fellow ham. It is a 250W version in a very good condition. The attenuator should be usable up to 6GHz.
Weiterlesen: Weinschel 40dB fixed high power coaxial attenuator
I've bought a cheap chinese DC-block on eBay for my spectrum analyser.
Here some measurements using the miniVNAtiny with vna/J:
I've bought some 30dB SMA pads from Huber&Suhner.
Here some measurements using the miniVNAtiny with vna/J:
Ich habe von **** eine gebrauchte, schaltbare Eichleitung gekauft. Laut Aufschrift stammt sie von **RE Instruments** aus Jülich. Sie dürfe aus der Zeit vor der Jahrtausendwende stammen und ist wohl aus einem HF-Signalgenerator ausgebaut worden.
Based on the work of Makis, SV1AFN i've build a small, stand-alone power meter with a "nice" GUI. This is the second RF head I've received from Makis. Data about the first one can be found here.
Here you can find the last spots for DL2SBA on each band within the last day and the all time farest spots.
Here I've collected some configuration stuff for my KiwiSDR.
Today we had a meeting in our local amateur radio club ESSLINGEN P02.The topic for this meeting was WSPR.
Bernd DK9BH was the organizer of this meeting. He has ordered about 10 WSPRlites from SOTABEAMS.
I had the chance, to do same basic measurements on one of the WSPRlite units.
2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.
© 2021 Dietmar Krause, DL2SBA