Radio Shack PRO-95 owner manual Understanding Trunking

the need to enter all the Motorola group frequencies.

The control channels are subject to change depending on the day. Therefore enter all the control frequencies in the same bank. If you do not know which is the control channel, it is better to enter all the system frequencies into the same bank. (Refer to the supplied Trunking Guide.)

When the scanner decodes the Motorola control channel and finds the voice channel, the scanner displays the control channel memory location on the top line, the received frequency with VC (voice channel) on the second line, the bank and control channel memory location number on the third line and the Motorola ID number on the bottom line. !

When an ID code is received, the ID list for the bank is searched, and if found, the text name stored for the ID appears. If not found, scanning resumes immediately unless the bank is in open trunking mode. Ô

UNDERSTANDING

TRUNKING

In the past, groups that transmit frequently, such as police departments, could transmit on only a few frequencies. This resulted in heavy traffic and often required 2-way radio users to wait for a specific frequency to clear before transmitting. Trunked systems allow more groups of

2-way radio users to use fewer frequencies. Instead of selecting a

! IMPORTANT !

To listen to the transmission, the mode of the programmed channel must be the same as that of the trunking channel (MOT, or ED).

Ô NOTE Ô

•There might be more than one talk group transmitting at a time in some Motorola trunking systems. If you set the scanner to manually tune in Motorola trunking mode, you will hear the talk group on that channel, but the display will alternate between all active IDs.

•Trunking group frequencies are included in the supplied Trunking Guide. Frequency fleet map and talk group information are also widely available on the Internet, (for example, at www. trunkscanner. com).

Trunking

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