To complicate matters, trunking radios are computer controlled. To
effect the computer operation, data bursts and tones are broadcast
over trunking frequencies. In the most common type of trunking
system, a data frequency is selected for a 12 or 24 hour period.
Scanner users are advised to LOCKOUT this frequency (so that the
scanner doesn’t stop each time it scans by the channel). The next
time you turn the scanner on, another frequency, in the same system,
may be used as the data channel. You will want to lockout this new
data frequency but you must remember to unlock the old frequency
which will now be used for voice transmissions.
Scanner Care & Maintenance Tips
Do not use the scanner in high-moisture areas such as the kitchen or bathroom.
Do not
plug the scanner into an outlet controlled by a wall switch as prolonged periods
without power causes scanner memory loss.
Avoid placing the unit in direct sunlight or near heating elements or vents.
30
