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[aprssig] Deviation meters

'Scott Miller' scott at opentrac.org
Sat Apr 7 16:10:59 UTC 2007


I'm trying to find one that doesn't require radio modifications and
calibration.  But I'll take a look at it anyway if you've got it handy.

Scott
N1VG 

> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org 
> [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Doug Younker
> Sent: Friday, April 06, 2007 10:43 PM
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] Deviation meters
> 
> I can't help you with the one you recall. Because of your 
> post I finally 
> took the time to scan an article that appeared in the January 
> 1990 issue 
> of "73". Titled Poor Man's Service Monitor.  I would be 
> willing to email 
> a zip file of the images as an email attachment to anyone who 
> wants it 
> This also uses a scanner. Unfortunately unlike the tapr kit 
> isn't self- 
> calibrating.
> 
> There is this from  far circuits http://www.farcircuits.net/test1.htm
> FM PACKET DEVIATION METER. $4.50. 73's May92. QRP EXPANDED 
> LED READOUT 
> VOLTMETER. $9.00. 73's Mar92. PULSED CRYSTAL SOURCE. $4.50. 
> 73's Feb92 ...
> Doug, N0LKK
> Kansas USA inc.
> 
> 
> 'Scott Miller' wrote:
> > Since proper deviation is one of the most critical (and 
> most neglected)
> > settings for an APRS transmitter, I thought I'd look into 
> the feasibility of
> > coming up with a simple meter kit.
> > 
> > So far I haven't found any existing, simple kits, but I 
> seem to remember one
> > that was based on a single LED.  Anyone remember that one, 
> or know where I
> > can find it?  If there's already something suitable out 
> there, I don't want
> > to have to reinvent it.
> > 
> > Scott
> > N1VG
> > 
> > 
> > 
> > 
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> > 
> > 
> 
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