"Brenda Ann" wrote in message
...


"Robert11" wrote in message ...

Hello,

Anyone know of an "inexpensive" Downconverter that would enable the
hearing of vhf/uhf Aero frequencies on a sw radio that presently goes up
to the typical 30 MHz ?

Thanks,
B.


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No ideas off the top of my head for UHF, but the VHF air frequencies are
pretty easy. A standard FM radio can be easily modified to receive those,
sometimes by merely spreading the coils and doing a simple alignment.
Then, if you wish to listen on your SW, just tap off the IF strip and tune
in on 10.7 MHz.


ARRL manuals from the 80s to 90s had practical downconverter circuits. I've
listened to single channel air bands, so I suggest the OP try a wide band
scanner. eBay usually has a selection, such as
http://www.ebay.com/itm/RADIOSHACK-2...em3cc2d5 ba00