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Re: LF: TX > RX isolation test

To: [email protected]
Subject: Re: LF: TX > RX isolation test
From: N1BUG <[email protected]>
Date: Thu, 19 Jul 2018 08:47:27 -0400
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Thank you Sandy. This is another very interesting data point.
Congratulations on your receive results so far and good luck with
the transmitting side of things!

73,
Paul N1BUG


On 07/18/2018 09:15 PM, Nan and Sandy Sanders wrote:
> This thread prompted me to do a quick A/B test between my LNV (34 
> feet tall and  7 foot ground rod) with about 300 feet twisted pair to 
> the shack. It is in the trees about the same as N1BUGs and a PA0RDT 
> mini whip (on a 25 foot pole, ground rod at the base) with about 120 
> feet of RG6 to the shack that is about 75 yards from the LNV and 
> about 20 feet from a 50 foot tree. I used my SDR I/Q and Spectra View 
> to look at NDBs at 253, 320 and 332 KHz (picked at semi random for 
> strong consistent signals). The LNV was 10 DB below the Mini Whip. 
> The signal to noise was the same as best as I could tell ( bad 
> thunderstorm noise). The transmit antenna is under construction so I 
> don't have coupling problems yet.
>   I seem to hear ok. DCF39 was a regular on the waterfall last winter 
> along with East and West coast WSPR stations on 137 KHz and an LF 
> broadcaster was heard a time or two all on the Mini Whip in East 
> Texas grid EM22nm. Hope this helps.
>       Sandy
>       WB5MMB 

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