ZD7GWM / B beacon captured by F0FYF on 144 MHz for distance 7000 km!
Garry ZD7GWM recently launched a lighthouse on St. Helena Island 144,475 MHz with a power of 20W CW. OM0AAJ Jano
Read moreZvyčajne sa používa najmä anténny predzosilňovač. Jeho úlohou je zosilniť slabý prijatý signál anténou na úroveň, ktorá je lepšie spracovaná prijímačom. Na vyšších VKV pásmach je dôležitou súčasťou príjmového reťazca pretože umožňuje dosiahnuť nízke šumové číslo, ktoré by inak bolo zhoršené aj stratami v napájacom kábli medzi anténou a prijímačom.
Garry ZD7GWM recently launched a lighthouse on St. Helena Island 144,475 MHz with a power of 20W CW. OM0AAJ Jano
Read moreWhile there is no APRS in OK (While there is no APRS in OK) While there is no APRS in OK, v OM sa až na výnimky s týmto systémom
Read moreThe author of the following connection is Ole OZ2OE. The original description in English can be found at http://hjem.get2net.dk/ole_nykjaer/oz2oe/hfpreamp/hfpreamp.html. we thank you! Preamplifier to “deaf” HF receiver. Suitable
Read moreAnother article from Ole OZ2OE is a low - noise preamplifier on 144 MHz s BF981, which makes a profit 23 dB at noise
Read moreThe FO-29 is one of the satellites providing the greatest DX capabilities. The advantage is stable operation, good track height (polar, with perige between 800
Read moreBeverage antenna as a special receiving antenna has the disadvantage of lower gain and thus subjectively attenuates the signals when switching
Read moreBeverage antenna is a special receiving antenna suitable especially for lower HF bands. In the CQ WPX Conteste, OM0A used a beverage
Read moreToday it is not a problem to get a solid GaAs transistor, nevertheless, the design of the preamplifier has two pitfalls - obtaining quality capacitance
Read moreWhen it comes to Lomnický štít and VHF races, most knowledgeable radio amateurs will remember the second highest peak of the Tatras as an ideal place,
Read moreSSB League are OK / OM races, SSB League are OK / OM races. SSB League are OK / OM races
Read moreOperation via amateur radio satellites is a good option for VHF DX operation even from otherwise unsuitable QTH. And there are those
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