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Re: LF: WSPR tests by DK7FC

To: [email protected]
Subject: Re: LF: WSPR tests by DK7FC
From: Stefan Schäfer <[email protected]>
Date: Tue, 18 Sep 2012 20:58:53 +0200
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Hello André,

OK, i'm going to 20%.
Is there any preferred frequency where to go to? Maybe i should go closer to the lower end, arround 137.410 kHz?

73, Stefan/DK7FC


Am 18.09.2012 18:49, schrieb André Guyé:
Hello DK7FC Stefan.
 
Congrats, but I am sorry because your LF WSPR signal is very strong here in JN19QB (about 180 µV in SPM3), and of course I cannot copy any other station when you are transmitting.
 
Please be kind to set your Tx traction as usual,  between 10 to 20 % instead of 50 %.
 
The goal of WSPR is to transmit with low power and also to listen the band for giving some RX reports to other transmitting stations.
 
It is the same problem, at times, when you are transmitting on OPERA 32 at 100 % without any pause for listening. In this case, others stations have no chance !
 
Best 73 and good luck.
 
Andy F6CNI.
 
-----Message d'origine-----
From: Stefan Schäfer
Sent: Tuesday, September 18, 2012 5:20 PM
Cc: Joe Taylor ; Edgar J Twining
Subject: LF: WSPR tests by DK7FC
 
So now i joined the WSPR group and start to do some test transmissions
with the normal 2 minute WSPR code, using Markus' tool. The goal is to
see if the tool works properly and what decode levels i can obtain in
various distances.
 
A 2 minute WSPR beacon is running here in Heidelberg / JN49IK, 50% TX
time. I will run it until tomorrow 6 UTC.
 
Reports apprechiated :-)
 
Please can we try to move the LF reports/hour peak in the diagram above
the level of the 20m band? ;-)
 
Tests using the 8 and 32 minute WSPR will follow soon.
 
73, Stefan/DK7FC
 
PS: TX pwr may be a bit reduced in first tests, abt. - 10 dB f.s.
 
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