Re: LF: Re: DK7FCs 5th VLF experiment...

[Stefan Schäfer <Stefan.Schaefer@iup.uni-heidelberg.de>]

Hello Jim,

Aah, ok. Well, i haven't done this test. As usual, i took all the time 
to transmit although i wanted to prepare that test. The QRN level was to 
high and Markus told me that he is not visible on my grabber so i 
thought there will be nothing to receive :-( And the QRN itselfe is not 
the best way to check receiver performance. But we will do that in the 
next tests! Maybe the ALPHA stns are an alternative but even tose were 
OFF during the last test...
73, Stefan/DK7FC


Am 18.05.2010 22:55, schrieb James Moritz:
> Dear Stefan, LF Group,
>
> > Which vertical antenna do you mean?
> >
> > 73, Stefan/DK7FC
> Well, on 15/05 you wrote:
> > If the wind is stable and i have enough time i will do first 
> > receiving tests using the TX antenna! This >is to prepare the first 
> > VLF QSO above 100km ;-)
> I was just curious to know if you tried this, and if so, how loud the 
> results were... Back in 2000, I did some tests on 136k and 73k from 
> the 100m high Decca Navigator mast at Puckeridge. The receive SNR was 
> actually very good, thanks to the quiet rural location, but it did 
> need about 40dB of attenuation at the RX input.
> Cheers, Jim Moritz
> 73 de M0BMU