the receiving signal location 
(expressed in MHz). To fi nd active frequencies, 
you can use frequency guides available from your 
local RadioShack store, frequency listings posted 
on the Internet, or the built-in search/stalker 
 programmable memory locations for 
the frequencies you want to monitor. Each time 
the scanner fi nds an active frequency, it stops and 
monitors the radio traffi c on that channel until the 
transmission ends, then resumes scanning.
group of channels. Channels are storage areas 
for frequencies. Whereas a channel can only 
contain one frequency, a bank can hold numerous 
frequencies and decide which frequencies you 
want to store when you are ready to program the