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39
A GENERAL GUIDE TO SCANNING
Reception of the frequencies covered by your scanner is mainly
“line-of-sight.” This means you cannot usually hear stations that
are beyond the horizon.
UNITED STATES BROADCAST BAND
In the United States, there are several broadcast bands. The stan-
dard AM and FM bands are probably the most well known. There
are also four television audio broadcast bands — the lower three
transmit on the VHF band and the fourth transmits on the UHF
band. You can use your scanner to monitor the 470
–
512 MHz por-
tion of the UHF band.
TYPICAL BAND USAGE
The following charts show the types of broadcasts you can hear in
each band, the number of the search band where you can search
for them, and the frequency range of the broadcasts.
VHF Band (30.00-300.0 MHz)
Broadcast Type
Search
Band
Frequency Range (MHz)
10-Meter Amateur, VHF
Lo
0 29.00 50.00
6-Meter Amateur 1 50.00 54.00
Aircraft/Air Shows 2 108.00 136.975
Aircraft/Air Shows/Gov-
ernment
3 137.00 144.00
20-561.fm Page 39 Wednesday, August 4, 1999 3:48 PM