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Re: LF: QAP 500...how to get rid of attenuator on rigs...

from [MIKE REID] [Permanent Link][Original]
To: <[email protected]>
Subject: Re: LF: QAP 500...how to get rid of attenuator on rigs...
From: "MIKE REID" <[email protected]>
Date: Mon, 5 Mar 2007 16:17:02 -0600
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Seal-send-time: Mon, 5 Mar 2007 16:17:02 -0600
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The RIT on the TS-930 is just as rock solid as the VFO is. Not even a tiny bit of drift. It uses a optical encoder similar to the VFO's design.
Mike
WE0H
 
From: Stewart Bryant



MIKE REID wrote:
Wolf,
 
Try setting the rig to 499.99kc and use the RIT to go up into the 501kc band. No more attenuator!!! That?s what we do on 505-510kc here in the US.
 


Is the RIT control a stable input to the frequency synthesizer?

In some rigs it is a pot either directly driving an oscillator, or it
is an  ADC on the control processor where it is used as a poor mans
digital input.

RIT was originally intended to provide SSB offset, not the 1Hz class
stability that is needed for QRSS.

73

Stewart G3YSX
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