[SEDXC] Fun with Surplus Parts
Jeff Carter
sedxc at hidden-valley.com
Mon Oct 1 20:09:00 EDT 2007
From time to time, someone offers me a bunch of surplus TV or computer parts.
I always think it's a shame that some of it can't be put to use as an Amateur
Radio project.
Today, though, it hit me: If you have a surplus (but brand new) television
tuner, and you know Channel 2 runs from 54-60 MHz, and you also know that our
6 meter allocation runs from 50 to 54 MHz, the high part of the band is FM
(although narrowband) and the audio portion of a TV signal is also FM
(although wideband), why can't you rig a 6m FM receiver out of a surplus TV
Tuner?
This may have been beat to death in QST, etc., but I wasn't born until 1967.
By this I mean if somebody already did this and it was covered in the March
1972 QST, I probably didn't see it. I would, however, appreciate a link to
this.
If you look on Google, there's a guy who *sort of* did it here:
http://hem.passagen.se/communication/uv916rec.html
His design is more complicated than what I had in mind, because I don't want
to tune the entire TV Band and as a result you could eliminate all the I2C,
TTL/Serial and Windows stuff he's done.
Also, there may be a much easier way to get there than using a TV tuner, that
was just what hit me. TV tuners can be had for less than $20 all day long.
Ideas? Not all construction projects have to be QRP, and *all* hams could
potentially benefit, not just those of us with HF privileges.
Jeff
KD4RBG
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