[Hammarlund] HQ-129-X Question

[Carl]

Ive been using a 51J4 as a selective voltmeter and monitor for decades. 
Better than leaving it sit in the attic!

Also doubles for entertainment, time checks, when Im at the bench

Carl


----- Original Message ----- 
From: <WQ9E at btsnetworks.net>
To: <gzook at yahoo.com>; <hammarlund at mailman.qth.net>; 
<1oldlens1 at ix.netcom.com>
Sent: Monday, November 29, 2010 11:39 AM
Subject: Re: [Hammarlund] HQ-129-X Question


> On these older single conversion receivers I always use my Grundig YB-400 
> portable when setting the HFO.  I program into memory the set points for 
> each range (usually dial frequency plus IF) and this makes tracking setup 
> very fast with no chance of wrong side tracking (as long as you follow the 
> manual as to which side it should track).  The receiver just needs to be 
> fairly close so no direct connection is needed to hear the oscillator 
> signal in the external receiver.  An external receiver like this has many 
> uses including nailing down which oscillator is contributing to frequency 
> instability or hum and of course transmitter checking.
>
> Rodger WQ9E
>
> ----------------------------------------
> From: Glen Zook <gzook at yahoo.com>
> Sent: Monday, November 29, 2010 10:08 AM
> To: kgordon2006 at frontier.com, hammarlund at mailman.qth.net, Richard Knoppow 
> <1oldlens1 at ix.netcom.com>
> Subject: Re: [Hammarlund] HQ-129-X Question
>
> Use a counter and make sure that the oscillator is above the indicated 
> frequency on the 4, not 2, lower bands.  Especially on the 3.2 MHz to 5.7 
> MHz and on the 5.7 MHz to 10.0 MHz bands it is VERY easy to get the 
> oscillator on the wrong side.  Within the last couple of months I had an 
> HQ-129X in for service that had exactly the same problem.  Not only was 
> the bandspread off calibration the tracking between the end points was not 
> that good.  It turned out that the receiver had previously been aligned 
> with the injection frequency on the low side for the middle 2 bands.
>
> Glen, K9STH
>
> Website:  http://k9sth.com
>
> --- On Sun, 11/28/10, Richard Knoppow <1oldlens1 at ix.netcom.com> wrote:
>
> Yes. This is true for the 129X also. We have discussed this in the past. 
> The '129X manual may not mention this fact, but it IS a fact.
>
> BELOW signal frequency on the two highest bands.
>
> ______________________________________________________________
> Hammarlund mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hammarlund
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Hammarlund at mailman.qth.net
>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
> ______________________________________________________________
> Hammarlund mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hammarlund
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Hammarlund at mailman.qth.net
>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html