Message-ID: <4DC56FCB.1050509@iup.uni-heidelberg.de>
Date: Sat, 07 May 2011 18:14:03 +0200
From: =?ISO-8859-15?Q?Stefan_Sch=E4fer?= <schaefer@iup.uni-heidelberg.de>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
References: <4DC527C4.3070903@iup.uni-heidelberg.de> <D0EE688714534219A64EC627262F2114@JimPC>
In-Reply-To: <D0EE688714534219A64EC627262F2114@JimPC>
Subject: Re: LF: Re: CW...
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org


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 window, 
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 now 
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 supply 
:-) I watched to the wave form of the antenna voltage just by hanging 
out a 1:10 oscilloscope probe in about 2m distance to the antenna and 
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 here 
> 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