Owner`s manual

AE75H OWNER’S MANUAL
11
GENERAL GUIDE TO SCANNING
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.
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 without 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 specific intervals. For example:
Frequency Ranges Specified Interval
68-88, 137-144 and 146-174 MHz 5.0 kHz steps
144-146 and 380-512 MHz 12.5 kHz steps
108-137 MHz 25 kHz steps