User's Guide

Table Of Contents

SRP9100 RADIO P25 – OPERATING INSTRUCTIONS

6.13 SCAN EDIT

This key is used to enter the Scan Edit menu, where the members of a scan group can be

added or deleted.

6.14 SCRAMBLER

If an analogue channel is selected, then the scrambler function button can activate a simple

voice inversion scrambler for low security applications. Scramble mode is indicated by the

‘SC” indicator icon.

6.15 SKIP

The Skip function key is used to temporarily remove members from a scan channel. The

removal is temporary only until the channel is changed.

6.16 SQUELCH

The squelch mode is used to selectively receive P25 signals. It has three modes, Monitor,

Normal and Selective. When set to Monitor, all P25 traffic on that channel will be heard,

subject to presence of encryption. Normal mode will hear all P25 traffic with the correct NAC

code. Selective mode will only receive calls to the channel default talkgroup and individual

calls.

6.17 TALKAROUND

On a repeater channel only, this function button allows the radio to transmit on the base

station’s output channel, so the user can talk directly to other mobiles on the channel, while

the repeater is out of service or out of range.

When the key is pressed again (or the Channel is changed) the mobile’s transmitter channel

reverts to its normal setting.

Talkaround mode is indicating to the user by a double beep at the start of each PTT.

6.18 ZONE

This function provides a shortcut to the detailed zone menu.