[Boatanchors] General Coverage for Ham Receivers

[Al Klase]

Keith,

I've done some klutzing around with the Si5351 synthesizer controlled by 
an Arduino microcomputer.
Parts are cheap and available (Amazon).  The challenge is programming it 
to do exactly what you want.
Lots of info out there.  Search Si5351.

Maybe start here: 
https://projecthub.arduino.cc/CesarSound/10khz-to-120mhz-vfo-rf-generator-with-si5351-and-arduino-3bd1c1

73,
Al

On 11/11/2023 10:51 AM, Keith Densmore wrote:
> Greetings to All,
> Over the years I have owned  receivers with a crystal controlled front end.
> Usually they are limited to a set number of bands determined by the number
> of crystals they contain. The design uses both solid state and tube sets
> and includes Collins, Drake, Heath and others.
> The only set that had a 'converter' to give general coverage was the Drake
> R-4C which used the FS-4 to generate crystal frequencies to give Short wave
> coverage from a ham receiver.
> I recently picked up a Allied SX-190 and am curious if anyone has played
> around with using a DDS generator to expand frequency range of  receivers
> of this type. Not much on the internet and there is an array of signal
> generators (mostly Chinese). I hope someone can cut through the confusion.
> Thanks,
> Keith ve3gem
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-- 
ARK Sig Block Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/