[Hammarlund] HQ-150 question

[Mark Dinsmore]

Hi Bill,

WWV is right on 15.00 and the image is about 880 khz up at 15.88

Mark


On Fri, Apr 4, 2014 at 1:03 PM, Bill Cromwell <wrcromwell at gmail.com> wrote:

> 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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