[Hammarlund] HQ-150 question

Bill Cromwell wrcromwell at gmail.com
Fri Apr 4 16:03:22 EDT 2014


Where does WWV at 15 MHz show up?

73,

Bill  KU8H

On 04/04/2014 03:45 PM, Mark Dinsmore wrote:
> Hello colleagues,
>
> I have a Hammarlund HQ-150 I acquired a couple years ago. For the most part
> it plays fairly well.  In a past life it had the 5U4 replaced with silicon.
> It also has been modified with a 'hang-agc' unit as described in the old
> QST articles like the Dec 1965 QST articles like "Some thoughts on Hang AGC
> Systems," Chet Opal, K3CUW.
>
> Anyway I recently noticed that on one of the bands, 10-18 Mcs, that I
> receive WWV on  15.00 at S+10 where I expect it, but also receive it at
> 15.88 at about S7 as well. Other strong stations in the middle of this band
> exhibit similar images at about the same 880kcs. Note that the WWV  at the
> low end of the band (10.00) does not have an image, the phenomena seems to
> be primarily in the center of the band.
>
> Any thoughts on how I should begin diagnosing this?
>
> Mark NZ7X
> ______________________________________________________________
>



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