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LF: 475kHz grabber

To: "[email protected]" <[email protected]>
Subject: LF: 475kHz grabber
From: Rik Strobbe <[email protected]>
Date: Mon, 18 Jun 2012 18:02:59 +0000
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Thread-topic: 475kHz grabber
On request of Marco, DD7PC, I am running a grabber on 475kHz (474.95-475.05):
The grabber may be interrupted for a QSO.

73, Rik  ON7YD - OR7T 

Van: [email protected] [[email protected]] 
namens Stefan Schäfer [[email protected]]
Verzonden: zondag 17 juni 2012 16:03
Aan: [email protected]
Onderwerp: LF: Further MF impressions


I just thought my receiver isn't working correctly. I thought the xtal
does not start to oscillate due to the higher ambient temperatures in
the afternoon. But later i found that the band noise on MF is
significantly lower than in the evening, at least 20 dB. So now i see
that the band noise is about 5 dB above my soundcard noise with the
current setup.

What do others know about the ground wave range in summer and in the
afternoon? When does the band open? Similar to LF?

BTW thanks to DF6NM for the grabber. Nice tool to get some experience in
these first days...

73, Stefan/DK7FC

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