Peter, Markus, Thanks for the feedback, very useful! I found that it is due to the secondary ferrite core that became hot. I just checked if it is due to saturation or due to copper losses in the win
Stefan, Your signal was showing here at 0300z. I started captures just after that. Best signal was around 0500z. Received with vertical wire a bit over 10 meters long thrown over a tree limb. Dex
Stefan, confirming Peter's observation at 21:40: It seems that the first 5 dashes of each callsign are sent at full power, and then there is a sudden ~ 6 dB drop in each of the subsequent dashes. 73,
LF! Yesterday i wasn't on air since the system was under construction, it was terrible! ;-) It's still no finished but at least i did some important steps to come closer to the new way of matching th
Like yesterday i will run my TX until the morning on 136.172 kHz in DFCW-90. Have replaced the secondary winding of the xfmr by 120x0.1mm RF litz wire. Hope this helps to rdeuce the upwarming... 73,
Dex, Many thanks for the report! Looks good. I hope to set up a more stable signal this night. Vy 73 to NC Stefan/DK7FC Am 18.11.2011 14:01, schrieb Dexter McIntyre W4DEX: Stefan, Your signal was sho
Hi Stefan, You wrote: ... Now i'm back on 136.172 kHz and will transmit all the time until early morning in DFCW-90 on 136.172 kHz. ... Clearly visible here at Kiel, ~32 dB below HGA22. I'm not sure