20
GENERAL GUIDE TO SCANNING
BIRDIE FREQUNCIES
Every scanner has birdie frequencies. Birdies are signals
created inside the scanner's receiver. These operating fre-
quencies might interfere with broadcasts on the same fre-
quencies. If you program one of these frequencies, you hear
only noise on that frequency. If the interference is not se-
vere, you might be able to turn
SQUELCH
clockwise to cut
out the birdie.
The birdie frequencies on this unit to watch for are:
72.170
80.300
85.775
136.5125
144.550
150.150
152.575
160.605
168.635
385.450
392.925
393.725
401.7625
409.050
415.1875
425.1250
429.050
431.225
441.200
466.050
489.150
497.875
505.900
809.900
811.5625
819.600
825.9375
827.6375
836.700
814.975
843.7125
851.750
859.7875
867.250
891.925
899.9625
908.000
915.4375
924.075
930.1875
940.150
944.050
947.550
956.2125
To find the birdies in your scanner, being by disconnecting
the antenna and moving it away from the scanner. Make sure
that no other nearby radio or TV sets are turned on near the
scanner. Use the search function and scan every frequency
range from its lowest frequency to the highest. Occasionally,
the searching will stop as if it had found a signal, often with-
out any sound. That is a birdie. Make a list of all the birdies in
your scanner for future reference.
SPECIFIED INTERVALS
Frequencies in different bands are accessible only at spe-
cific intervals. For example:
Frequency Ranges
Specified Interval
68-88, 137-144 and 146-174 MHz 5.0 kHz steps
108-136.9875, 144-146,
380-512 and 806-960 MHz 12.5 kHz steps
PSR216OM.p65
2004/04/08, 16:50
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