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From: "Talbot Andrew" <ACTALBOT@dera.gov.uk>
To: rsgb_lf_group@blacksheep.org
Subject: LF: RE: Re: SMT Hell
Date: Mon, 26 Jun 2000 09:37:50 +0100
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No, the version of Spectrogram I use does not have the time delay
function.  Use Spectran instead.  For this 2.5Hz mode Gram will not go
narrow enough I suspect. even if you do get the delay right.

Andy G4JNT


> ----------
> From: 	Ko Versteeg[SMTP:nl9222tv@tref.nl]
> Reply To: 	rsgb_lf_group@blacksheep.org
> Sent: 	2000-06-25 10:35
> To: 	rsgb_lf_group@blacksheep.org
> Subject: 	LF: Re: SMT Hell
> 
> Andy..
> Using SpectroGram here, any idea what the best value
> for the time scale in msec is.
> Running it at 3000Msec now but traces are very weak.
> 
> 73 de Ko, NL9222
> 
> ----------
> > From: Andy Talbot <drassew2@interalpha.co.uk>
> > To: LF Group <rsgb_lf_group@blacksheep.org>
> > Subject: LF: SMT Hell
> > Date: Saturday, June 24, 2000 11:53 PM
> > 
> > For information, I am transmitting a 2.5 Hz wide SMT Hell signal
> > continuously on 137.6kHz with pixel duration 2s.  Use Spectran at
> 0.031
> Hz
> > resolution and about 40 - 50% speed, averaging off.   Power output
> is 5
> > Watts RF to the antenna, about -33dBW ERP.
> > 
> > However, there may be a short break sometime tomorrow (Sunday) while
> I
> > re-route the coax feed to the antenna.
> > 
> > Andy  G4JNT
> > 
> 


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