Message-ID: <001b01cc0d57$ad1c2340$0401a8c0@xphd97xgq27nyf>
From: "mal hamilton" <g3kevmal@talktalk.net>
To: <rsgb_lf_group@blacksheep.org>
References: <4DC527C4.3070903@iup.uni-heidelberg.de> <D0EE688714534219A64EC627262F2114@JimPC> <4DC56FCB.1050509@iup.uni-heidelberg.de>
Date: Sun, 8 May 2011 09:12:29 +0100
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Subject: Re: LF: Re: CW...
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Stefan
You were 569 signal on CW 136.8, solid copy here but you need to impro=
ve
your RX/Antenna system because you did not hear me running around 1W=
 erp nor
PA0A running 800 Watts
My antenna in use on 137 is the inv L system for both TX/RX up at 100=
 ft
high

73 de Mal/g3kev

----- Original Message -----
From: "Stefan Sch=E4fer" <schaefer@iup.uni-heidelberg.de>
To: <rsgb_lf_group@blacksheep.org>
Sent: Saturday, May 07, 2011 5:14 PM
Subject: Re: LF: Re: CW...


> Jim, Rik, Louis, Albert, Markus, Mal,
>
> Thanks for the QSO (Jim and Markus) or for trying to make a contact=
 in
> CW. I've heared many signals, probably all visible in a 732 mHz wind=
ow,
> some were audible but not understandable. Still some dBs are missing=
.
> Unfortunately not really much activity from Germany!
> Maybe it would be easier to get a copy early in the morning...
>
> After many RX tests in the last days i think my RX sensitivity is no=
w
> limited by the band noise, at least in summer. Anyway i will do the=
 test
> and remove the small probe by a C of equal capacity and look for the
> difference of the noise background...
> Using a loop antenna might bring the needed few dBs but means more
> effort and adjusting. Anyway i will do some tests soon.
>
> The PA was running well and the power was limited by the power suppl=
y
> :-) I watched to the wave form of the antenna voltage just by hangin=
g
> out a 1:10 oscilloscope probe in about 2m distance to the antenna an=
d
> got 10 Vp, a perfect sine wave of the old and the new PA :-)
>
> Tnx es hpe cuagn next, 73, Stefan/DK7FC
>
>
>
>
>
> Am 07.05.2011 16:37, schrieb James Moritz:
> > Dear Stefan, LF Group,
> >
> > Thanks for the DFCW3 / CW QSO - your signal was quite good copy he=
re
> > in spite of fairly noisy conditions - with an extra 10dB as you
> > suggest, it would certainly be armchair copy ;-)
> >
> > Cheers, Jim Moritz
> > 73 de M0BMU
>