Ham radio, HF propagation, DXCC/WAZ/IOTA, Antarctica
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80m bandpass filter simulation 29µH ---- 68 pF ---- 68 pF ----58 µH ---- 68 pF ---- 68 pF ---- 29 µH 680 pF 680 pF gnd gnd This should look like : Now, the coil fabrication (same method as for the 40m bandpass filter !!!!!!) Once again, exactly 29.00µH...
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I already got 9L1 on 20m, but 17m was a brand new band. Thanks Zbig !!!!!!!!!!!!!! Ronan
Lire la suiteAs for many expeditions, I QSO this one the very last day, on 20m (the only exception was for Clipperton, TX5C, on 17m, HI ). Yesterday was the very first day I heard them so well (peaking 5/5), but all EU stations were shouting a thim in the small +5...
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40m bandpass filter simulation (RFSIM99) 8.2µH ------ 68pF ------ 68pF ---------- 16.4µH ---------- 68pF ----------- 68 pF -------------8.2µH 680 pF 680pF gnd gnd A few pictures of the 40m band-pass filter finally adjusted today: Coisl are made from T106-2...
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Hi all, I feel like building a HF preamplifier for the low bands (at least 40 and 80m), in order to increase the signals of the Flag antenna I'm planning to build. The HF transistor( is a simpoe bipolar from NEC (NE46134), and the circuit has been optimized...
Lire la suiteThat was a fight to get through the big pile-up with my 100W only...!!!! I was listening to Rafiq from the beginning of the week working on 40m at around 20:00z. But each time he was calling EU, there was a BIG BIG mess, zoo, or whatever other words,...
Lire la suiteHi again, Most of you (in EU at least) have heard/QSO with Svein who is now JX9JKA in Jan Mayen isl. I couls QSO with him on all bands from 20 to 10m, incl WARC, with even a QRP QSO on 17m. I look for him now on the low bands !!!! Svein will stay there...
Lire la suiteHi all, This morning, I QSO with my first VK on 40m using the HF2V and 100W only. I got a 5/5 report, which was the same report I gave him. Thanks to David, VK3EW, for this QSO !!! Ronan
Lire la suiteWell, I decided to improve my RX by adding switchboard + 1.8KHz IF filter from INRAD. I've already got the optional 2100Hz SSB filter (CW is already fully loaded, HI), so the combination with the 180Hz may improve during contest times... Next step will...
Lire la suiteHi all, A short feddback after almost one week using the HF2V on 40/80m... Well, not a single station outside of EU (I only active in the evening, but maybe not last eough...1 hour max after my sunset). Nevertheless, my DXCC is SOOOOOOOOO empty there...
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