[amsat-bb] DIY Spectrum Analysers - Broadband RX 50-800 MHz?
kq6ea at verizon.net
Fri Apr 29 22:29:57 UTC 2016
Or put them on eBay.....
On 04/29/2016 09:47 PM, Robert Bruninga wrote:
> Is there any value to a pile of old set-top cable boxes (maybe 30 or more
> of them)?
> Inside they have the typical DC voltage varactor tuned Cable Tuner modules
> that people used to make cheap spectrum analyzers out of. Lots of articles
> back a decade or more ago.
> A simple DC voltage could tune them from maybe 50 to maybe 800 or higher
> MHz. Output was probably around 50 MHz (Ch 3?)
> Should I bring them to Dayton? Or chuck-em.
> Bob, WB4aPR
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