[TMC] GPR-90 RXD Tuning

[wb9tow at egr.msu.edu]

What is interesting, I've got a 1938 RME 69 with
the DB20 preselector....the image rejection is fantastic
with that old girl...
just takes 4 hours to stabilize :)
-s

>
>>
>>    Its interesting that most, if not all, of the modern "rice boxes"
>> have resistive attenuators on the input.  Can make a big difference.
>
> I used to own a Galaxy R-530 and an R-1530.  Don’t have them anymore, but
> my recollection is that the front panel attenuator was literally a pot
> across the antenna input — or at least somewhere in the path between the
> antenna and the 1st RF stage.  Definitely brute force 

>
> Grant NQ5T
>
>
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Cheers!
Steve


Steve Marquie
B.S. Technical Management
Instructor - BAE Department / Field Op Mgr-EnviroWx
Department of Biosystems & Ag Engineering
Room 126 Farrall Hall
Michigan State University
East Lansing, MI 48824
(517) 355-8128 office
(517) 927-9322 Cell