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OPERATING THEORY
Electromagnetic radiation which has frequencies of
20,000 Hz (20 kHz*) and above is called radio frequency
(RF) energy because it is useful in radio transmissions. The
IC-RX7 receives RF energy from 0.150 MHz* to 1300 MHz*
and converts it into audio frequency (AF) energy which in
turn actuates a loudspeaker to create sound waves. AF en-
ergy is in the range of 20 to 20,000 Hz.
* kHz is an abbreviation of kilohertz or 1000 hertz, MHz is abbrevia-
tion of megahertz or 1,000,000 hertz, where hertz is a unit of fre-
quency.
OPERATING NOTES
The IC-RX7 may receive its own oscillated frequency, result-
ing in no reception or only noise reception, on some fre-
quencies.
The IC-RX7 may receive interference from extremely strong
signals on different frequencies or when using an external
high-gain antenna.
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