Re: LF: YO grabber

[Chris 4X1RF <chrisgomy@gmail.com>]

Hello Stefan, LF,

Trace added with Max Value for 137.711Khz in 2Hz bandwidth. Will be interesting to see your signal on the plotter.


73s
Chris 4X1RF

2011/5/20 Stefan Schäfer <schaefer@iup.uni-heidelberg.de>

Hello Chris, LF,

Very interesting, your noise and DCF39 plot. One can clearly see that the best time for a DL-YO contact is just before sunrise, where the SNR of DCF39 is about 60 dB (!). Currently its just 15 dB!

I have an idea: Could you add another temporary trace where you show the signal level of the level at 137.711 kHz +- 2 Hz? Then you/we would get in impression of the SNR of my signal at your location. I would be active regularly, even in the night. I think you would have to enable displaying the maximum value and we have to think about the FFT width and so. Would it be interesting for you? Maybe i can make some clear peaks on that trace :-)

73, Stefan/DK7FC

Am 19.05.2011 23:18, schrieb Chris 4X1RF:

Hello LF,

Stefan's signal is weaker than usual today but nicely visible in QRSS3 in YO: http://qsl.net/4x1rf/yo/lfgrabber.htm

73s
Chris 4X1RF

On Thu, May 19, 2011 at 11:56 PM, Chris Osborn <g3xiz@yahoo.co.uk> wrote:

LF,

DK7FC is calling CQ on 137.710 kHz using QRSS-10
'O' copy with QSB in IO92UB

73
Chris G3XIZ