|
Nothing in io83lk Roger, wspr or
spec lab only decoding Jim and
Gus
G ..
G0NBD
Sent: Thursday, September 17, 2009 8:47 PM
Subject: Re: LF: Re: Re: WSPR threshold reports
Thanks for the screen shots Jim.
I continue to be simply
amazed that my tiny signal is being decoded by ANYONE at all. It certainly
proves what a wonderful resource WSPR is for experimenting with QRP, antennas,
rigs etc. on any band, but especially on 136 and 500kHz.
73s
Roger
G3XBM
On 17 Sep 2009 20:29, James Moritz <[email protected]>
wrote:
> Dear Dave, Roger, LF Group,
>
>
>
> I
have attached a screen shot of WSPR signals from SM6BHZ and G3XBM received just
now, using Spectrum Lab set up for QRSS3 reception. The corresponding WSPR spots
were:
>
>
>
> 1836 -12 0.0 0.503925
0 SM6BHZ JO57 33
>
> 1840 -27 2.9 0.503890
0 G3XBM JO02 0
>
>
>
> SM6BHZ was an audible
signal which would have been weak but copy-able CW - I expect Gus's signal will
pick up by 10dB or so as the night progresses. G3XBM is never audible at all -
the QRN is building rapidly now, but during the day I get 100% copy at about -25
or -26dB; when noise levels build up I sometimes get correct copy at -30dB or
so. So that's what it looks like when it is working ;-)
>
>
>
> It makes no detectable difference whether I use the SSB filter
or 250Hz CW filter on the IC718 - even the local signals on 500k are not really
strong enough to overload the audio, provided the RF gain is backed well off so
that the S meter reads about s7 or 8. You do need the narrow filter on 136k of
course.
>
>
>
> Cheers, Jim Moritz
>
>
73 de M0BMU
>
No virus found in this incoming message.
Checked by AVG -
www.avg.com
Version: 8.5.409 / Virus Database: 270.13.103/2378 - Release
Date: 09/17/09 06:18:00
|
