Dear Stefan, LF Group, Now seeing a carrier near 8970Hz at abt 15dB SNR with low QRN - excellent signal! Have to leave again now, but receiver will be running. Cheers, Jim Moritz 73 de M0BMU yes. The
Hi Stefan, Signal from 2nd Nyquist domain folded back. 24 + (24 - 10.6) = 37.4 kHz ==> NRK / Iceland at 37.5 kHz is very strong here in Europe. 73 from Kiel, Peter
Sorry, my ignorance: what is 24? Regards D. From: Stefan Schäfer <[email protected]> To: [email protected] Sent: Sun, October 10, 2010 7:11:32 PM Subject: Re: LF: Re: DK7FC's
Dear Stefan, LF Group, This is the screen shot of today's signal from DK7FC at my home QTH (IO91vr) from about 1020 until 1300 utc. The time markers are at 1 hour intervals. The QRN level seemed to b
Wow, Thanks Peter! How have you found that? By guessing? :-) 73, Stefan Am 10.10.2010 16:13, schrieb pws: Hi Stefan, You wrote: ... There is sometimes a trace arround 10,6 kHz which looks as a MSK si
Hi Jim, This capture is taken from your home QTH, rigt? Or have you been out in your car for 24 hours, just to minitor? ;-) It looks nice and very clear with very low QRM, at least above 5 kHz. The s
Hi all, Was away from home doing some shopping - latest screenshot attached. -- vy 73 + gd DX, Michael RX: ICOM R75, SDR-IQ, Perseus Antenna: Wellbrook ALA 1530, Mini-Whip Location: Roschbach, German
[...] I think this is due to the cooling fan in the laptop cycling on and off every minute or two, frequency modulating the soundcard clock by several millihertz due to the changing temperature. I th
Dear Stefan, LF Group, Thie attachment shows just over 24h of VLF spectrogram recorded using the "wideband.usr" file you posted earlier. The period shown is 1200utc on 7/10 until 1200utc on 8/1, prod
Dear Stefan, LF Group, This capture is taken from your home QTH, rigt? Yes, this is the same QTH and equipment as used for your lests last week, although without the 9kHz bandpass filter connected. I
Hi Stefan, The only guess was the sample rate used, 48 kHz. (@Daniele: 48/2 = 24 kHz) Many months ago I made some tests with a cheap USB-sound-system running at 48 kHz of sample rate. It has almost n
Hello James ! I had a similar problem with an old Toshiba Satellite notebook. I solved it by setting the cooling method to "Quiet" instead of "Performance" in the BIOS and adding an external fan (120
Dear Stefan, LF Group, I hope to be monitoring your signal today - unfortunately, I have to do some work today, but the 9kHz RX is on, and hopefully I will be able to check results from time to time.
Nothing seen on Stefan's grabber yet, so most likely the kite is still down. right now abt 10dB S/N in Warsaw/Poland. 902km confirmed! Congratulations Stefan! VY 73 Jacek / SQ5BPF Attachment: dk7fc_
These is the final screenshots from the grabber, showing the whole transmission. More screenshots here (slow site, have patience :): http://www.lipkowski.org/~sq5bpf/dk7fc_20101002/ QTH is Warsaw, Po
