Radio Shack PRO-67 Operation page 16

162.425 162.500
162.450
Canadian Weather Frequencies
161.650 161.775
Note:
These frequencies are not pre-programmed in the weather service bank
but can be manually programmed into a channel.
Birdie Frequencies
Every scanner has birdie frequencies. Birdies are signals created inside
the scanner's receiver. These operating frequencies might interfere with
broadcasts on the same frequencies. If you program one of these
frequencies, you hear only noise on that frequency. If the interference
is not severe, you might be able to turn SQUELCH clockwise to cut out the
birdie. This scanner's birdie frequencies (in MHz) are:
41.6000 150.7700
114.4000 152.6000
124.8000 152.6500
135.2000 155.2550
162.550
163.275
416.0000 447.2000
423.8500 457.6000
423.9000 485.5500
423.9500 485.6000