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Date: Mon, 24 Apr 2000 21:59:14 +0200
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Data: Mon, 24 Apr 2000 20:52:47 +0100
To: rsgb_lf_group@blacksheep.org
From: "M. Bruno" <spin@inrete.it>
Subject: Re: LF: IK1ODO  qrp beacon
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In 09.39 22/04/00 , Alan G3NYK wrote:
.....
> An
>interesting point was that it seemed here as thouh your dot freqquency was
>about 0.2Hz lower when the DFCW appeared than the last seen steady carrier
>at 1130z. I do not think this is drift at my end as I was running a cal
>signal which did not move (I have measure this before and found it stable to
>0.1Hz ,which is my measurement accuracy, without going really clever.)
>
>This has been an interesting test. I make the distance just under 900kms to
>my location, and I understand todays power was about 10mW ERP. I am sure
>some averaging would pull a cleaner signal out of the mush ....there is
>plenty of time for that with 40 sec dots.
>
>Thanks for the chance to experiment and really use Spectran for digging down
>into the noise on a 'real' weak signal.
>
Hello Alan,

in effect the DFCW signal source is a XTAL in air, FSK'd by a transistor
inserting
a few pF in parallel. The steady carrier source was an ovenized XTAL with very
good stability. At the moment I have no synthesizer capable of sub-Hz steps, I
have
to FM the XTAL!

I hope somebody else checked the signal. I will let it running until tomorrow
(tuesday) morning.

73 - Marco IK1ODO