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Re: LF: 476.181 kHz from indoor loop

To: [email protected], [email protected]
Subject: Re: LF: 476.181 kHz from indoor loop
From: IK1WVQ Mauro <[email protected]>
Date: Wed, 24 Jun 2015 19:30:34 +0200
In-reply-to: <[email protected]>
References: <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
very interesting for WSPR tests !

few questions:

- mono-turn or multi-turn ??
- what are you using for match to TX ???

many thanks and
73 de Mauro IK1WVQ

At 12:11 24/06/2015, Markus Vester wrote:
I am currently running a DFCW-60 beacon on 476.181 kHz, using the same 10m^2 indoor transmit loop as previously on LF. With 35 Watts of RF input, estimated radiated power is around 2 mW, with lobes pointing west and east.
The daytime groundwave signal is visible in the bottom panel of the
DK7FC MF grabber. Going by the CCIR plots for 3 mS/m conductivity,
the groundwave attenuation for this distance would be about 23 dB in
excess off lossless 1/r propagation, resulting in approximately 0.2
uV/m in Heidelberg.
Best 73,
Markus (DF6NM)

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