[Hallicrafters] Hallicrafters SX-88
rbethman
rbethman at comcast.net
Wed Jul 22 09:36:57 EDT 2015
All,
Jay gets a "little" into his setup and tests on other pages.
<http://www.w1vd.com/Receivermeasurementbasics.html>
One has to dig through all of his site. The page above doesn't have the
Spectrum Analyzer, but does have a distortion analyzer.
I'd suggest writing him. He may get you a block diagram of his method used.
Regards, Bob - N0DGN
On 7/22/2015 5:37 AM, Greg Gore via Hallicrafters wrote:
> Jim,
>
>
> I see now you are correct as Jay made no direct reference to sweeping the IFs. He did mention using a spectrum analyzer so I assumed he adjusted the transformers with it. Without sweeping the IF stages individually there is no way to adjust the shape of each curve without flat topping them and hurting sensitivity. I recently obtained a Hewlett Packard 3585A spectrum analyzer so I'll be able to do that here now and it's planned for the next one when I reach that stage with it. Getting one's self in a position to be able to do a good job on these things is an expensive proposition and takes a lot of effort for just a hobby.
>
>
> Regards, Greg
> WA1KBQ
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