Re: LF: M0FMT?

[M0FMT <m0fmt@yahoo.co.uk>]

Hi Mike and LF

 

Thanks for the report. Yes very poor isn't it. It's a circuit I copied out of the RSGB LF Experimenter's Handbook. Very disappointing. It uses xtal frequency difference. It's a pity because on paper it looks like a good idea. All bits are high stab. as well!

 

I am running very QRP about a couple of Watts into a 600mm dia loading coil and variometer into a inv "L" Up 12m abt 35m lng far end up 4m (temporary), 80m per leg "H" ground system.

 

Today after another frustrating period doing various mods I have come to the conclusion that this design will never work properly. Another page to tear out of the book!

 

Audible 16miles away great! 

 

I have an 8.8 meg rock to divide by 64 which may give better results. This should be on tomorrow some time. 

 

I would like to thank Chris G4AYT for his invaluable feed back during this excersise.

 

 

73 es GL petefmt

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From: Mike Dennison <mike.dennison@ntlworld.com>
To: rsgb_lf_group@blacksheep.org
Sent: Sat, 19 February, 2011 11:38:10
Subject: LF: M0FMT?

Big audible signal transmiting 'FMT' on 137.460kHz using QRSS10 and
rather wobbly frequency. Pic attached showing signal with and without
my 10dB attenuator in circuit.

Mike, G3XDV
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