The extremely wide tuning range and the AM/FM compatibility
of the receiver described here allows you to listen to virtually
any RF signal in the ether between 47 MHz and 890 MHz. Based
on a ready made TV tuner unit, the receiver is simple to
construct, and has a minimum of adjustments. Build it, and
listen in on various types of communication: aircraft, ships,
radio amateurs, mobile and portable radio networks, cellular
radio, and carphones. In addition, the receiver covers TV
sound channels in the VHF and UHF band, and in the S band
and Hyperband used on cable networks.
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