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LF: Re: DK7FCs 5th VLF experiment...

To: [email protected]
Subject: LF: Re: DK7FCs 5th VLF experiment...
From: "Dave Sergeant" <[email protected]>
Date: Wed, 19 May 2010 06:53:34 +0100
In-reply-to: <[email protected]>
References: <[email protected]>, <[email protected]>, <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
On 18 May 2010 at 21:55, James Moritz wrote:
> I was just curious to know if you tried this, and if so, how loud the
> results were... Back in 2000, I did some tests on 136k and 73k from the
> 100m high Decca Navigator mast at Puckeridge. The receive SNR was
> actually very good, thanks to the quiet rural location, but it did need
> about 40dB of attenuation at the RX input.
> Cheers, Jim Moritz
> 73 de M0BMU

I remember calling you with that big signal from Puckeridge Jim with my 
136kHz loop and getting no response.... I was a bit surprised as I was 
working quite a lot of stuff at that range and further so would have 
thought it would have been no problem. There was somewhat of a pileup 
at the time (yes, even on 136..) but even so I was disappointed not to 
have got through as one would have expected the receive performance of 
a vertical that size to be far better than your average home station. 
Maybe that 40dB attenuation completely cancelled it out...

73 Dave G3YMC

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