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From: "Tom Boucher" <tom@telemetry.demon.co.uk>
To: <rsgb_lf_group@blacksheep.org>
References: <46840498.12577.2B2FDAD@dave.davesergeant.com>
Date: Thu, 28 Jun 2007 19:13:53 +0100
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Subject: LF: Re: (500) G3OLB and antenna measurements
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Status: O

Thanks Dave - 10 watts into a 140' sloper with a poor ground.
I can't play your recordings - I get the message ' Windows Media Player 
cannot play the file'. Any clues?

G3JFS has also been testing this evening with a 579 signal here.

73
Tom G3OLB

----- Original Message ----- 
From: "Dave Sergeant" <dave@davesergeant.com>
To: <rsgb_lf_group@blacksheep.org>
Sent: Thursday, June 28, 2007 6:57 PM
Subject: LF: (500) G3OLB and antenna measurements


> Coming in fine in Bracknell Tom on 502.6. 569 peaking 579. Recording
> at http://my.opera.com/davews/blog/2007/06/05/500khz-recordings
>
> Been looking again at my antenna impedance today. I have optimised
> and calibrated my G3LDO 3-meter impedance meter and now can make
> fairly accurate measurements sitting in the shack at the other end of
> my 22m of coax. I now know that the antenna resonates at 492kHz and
> has a resistive impedance of 26ohms there. If the weather holds off I
> shall be doing a few 'tweaks' over the next few days.
>
> 73 Dave G3YMC
>
> http://www.davesergeant.com
>
>