Hi Luis, Sounds interesting. I think that LF is permitted in CX. I have been in contact with someone from there a few years ago. But i never saw him at YV7MAE nor saw RX reports from him. Probably he
Hi John, I also got some traces of your signal arround 0 UTC. https://129.206.22.210:8001/f/6aa1c6891d/ (trying this kind of dropbox alternative now on a Raspberry Pi) 73, STefan Am 27.11.2015 22:44,
Hi all, We're sharing a lot of stuff here on the reflector. Quite often and since some years, dropbox is used to do the job. Now there are a few reasons why one can decide to leave dropbox and find a
Hello Joe, Yes, with QRO it's possible! 73, Stefan Am 30.11.2015 20:55, schrieb [email protected]: Thankyou again Markus, Paul and Andy, TX on in 5 mins. Wonder if there is a chance of a VK7 reception if
Am 01.12.2015 11:39, schrieb LineOne: I don't rate diodes, even faster ones than the 1N914/4148, for overload protection, they do make good mixers to receive broadcast signals off Long Wave. [...] Hi
Am 04.12.2015 17:53, schrieb mal hamilton: [...] When I get time I will QRO but need to build an intermediate RF amp between TCVR and main MF amp Which input signal does your main MF amp need? Rect
R Mal, Then i would try the TC4426, if you have them at home. And a ferrite transformer to rise the voltage level a bit and to decouple TX from PA. https://129.206.22.210:8001/f/80bc50b01d/ for examp
PS: Watch the duty cycle of the output signal. I don't know how accurate it has to be for that PA. Maybe you'll need another amp stage in front of the 4426 and anti-serial Z-diodes. Or an op amp stag
Hi all, After some weeks, the path seems to be open again. I'm now checking it with 50% TX ratio and a bit higher power. So far, 3 spots: Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az 2
Am 05.12.2015 19:26, schrieb mal hamilton: [...]yet no one beyond M0LMH can receive/decode my signal. Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az 2015-12-05 00:04 G3KEV 0.475707
Hi all, The lower frequencies become more and more popular it seems. At least on MF WSPR i've got reports by 75 stations during the last 24 hours (compare that to Opera! ;-) ), as many as never befor
Hi Dave, Yes, we notice that. And we notice that is is operated by Yas/JA8SCD who is a member of this group since years! And here to notice that he even received me in Tokyo, using this receiver, see
Hi Laurence, I checked the archive of TA60 captures from last night. No clear trace of a DFCW90 signal here. Anyway, thanks for the transmission! I should come back to LF some day... 73, Stefan Am 06
Hello Mike, Thanks for watching and reports. I think you are my best DX to the west so far. Do you use a directional rx antenna beaming to the east? 73, Stefan Am 08.12.2015 08:13, schrieb Michael Sa
Hi Uwe, My active VLF antenna inside a plastic tube was hanging down since a few days, see the spectrograms. Now i repaired that and the signal levels are back to their normal level. You are coming n
Hi Chris, It should be placed near the motor. But it doesn't matter to much since the motor is running for a few seconds only when doing QSY. Is the system already built up and working? 73, Stefan Am
Edgar, the animated gif is a very good idea! :-) 73, Stefan Am 08.12.2015 21:54, schrieb edgar: Hi Joe, Result from last night. https://dl.dropboxusercontent.com/u/101251787/VO1NA/VO1NA.gif Some adju
Hi Edgar, Maybe i forgot it but, did you ever run experiments on VLF in a clean environment? Would be interesting to get an impression about SNR of DHO-38 for example... 73, Stefan Am 08.12.2015 22:5
Hi Edgar, What type of antenna are you using for VLF? Could you generate a slower wideband window showing 0...24 kHz, like here: http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html 7
Or simply 80 W or 80000 mW. Forget the "," :-) In Germany, "," = "." and "." = ",", e.g. 12,7 V not 12.7 V. Maybe it is the same in Spain? 73, Stefan Am 09.12.2015 23:47, schrieb Graham: That's just
