Radio Shack PRO-90 Setting Squelch For The Trunk Tracking Mode, Programming Trunked Frequencies

20-520.fm Page 34 Wednesday, August 4, 1999 3:06 PM

SETTING SQUELCH FOR THE TRUNK TRACKING MODE

Your scanner’s squelch setting is automatically adjusted in the trunking mode, which means it is not necessary to manually adjust squelch while tracking trunked transmis- sions. However, the squelch setting can affect how fast your scanner acquires the data channel, and, in some in- stances, can prevent your scanner from acquiring the data channel at all.

We recommend you set SQUELCH to this position before selecting a trunked bank.

Note: You can change this setting, if necessary, to pro- vide better performance in your area.

PROGRAMMING TRUNKED

FREQUENCIES

Before you program your scanner to track a trunked sys- tem, consider the following:

•Valid trunked system frequencies range from 851.0125–868.9875 in 12.5 kHz steps.

•You can use any of your scanner’s banks as either a trunk tracking bank or conventional scanning bank, but you cannot mix the two.

•The scanner only scans one trunked system at a time. Although you can store frequencies for more than one trunked system in one of your scanner’s banks, the scanner only scans the frequencies associated with the first data channel it finds.

Before scanning a trunked system’s transmissions, you must store the trunked system’s frequencies in one of the banks in your scanner by following these steps.

34