Radio Shack PRO-91 User's Guide download pdf (Page 55)

Beyond the Basics

Signal Stalker II

Your scanner’s Signal Stalker II feature provides a

powerful new tool for you to rapidly detect, monitor

and store frequencies for nearby radio transmissions.

The Signal Stalker II feature is similar in functionality

to portable frequency counters that cost much more

than your scanner, but provides many advantages over

typical portable frequency counters. For example:

The Signal Stalker II allows you to sweep the entire

range of your scanner’s design frequencies, or you

can specify those frequency ranges that you wish

to sweep and exclude ranges that you do not want

to sweep. This allows you to omit frequency ranges

with constant strong frequency activity, such as

those with paging or broadcast transmitters. Many

portable frequency counters will remain locked to a

nearby constant signal, such as a paging or broadcast

transmitter, and will not function properly until you

have left the vicinity of the transmitter.

The Signal Stalker II feature is more sensitive

than portable frequency counters and will detect

transmissions at a greater distance. You can activate

the Attenuator to reduce the sensitivity if desired.

Once an active frequency is found, the transmission

is played through your scanner’s speaker, and you

can quickly store it in any of your scanner’s memory

locations.

using Signal Stalker II

Your scanner’s Signal Stalker II functions when

you press and hold for approximately 1 second.

The Signal Stalker II function can be set to watch

for activity on all band frequencies or Police/Fire

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Radio Shack PRO-91 User's Guide Page 55