CTI Products TSAM Transmitter Steering & Audio Matrix - Manual (Page 26)

TSAM Installation and Maintenance Rev. 2.10 Chapter 3
CTI Products, Inc. Secondary Channel Operation
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3.4.1 Momentary PL Monitor Control
When the Monitor input is momentarily activated, the TSAM sends a PL Monitor tone out the selected
Secondary site. The station re-enables the PL decoder on the next transmission.
3.4.2 Sustained PL Monitor Control
When the Monitor input is activated, the TSAM sends a PL Monitor tone out the selected Secondary site.
Since the station re-enables the PL decoder after a transmission, the TSAM will re-send the PL Monitor
tone after each transmission, as long as the PL Monitor input is active.
When the PL Monitor input goes inactive and a Secondary Site is still selected, the TSAM will generate
the appropriate Secondary Frequency tone sequence to that site.
If the PL Monitor input is active when a Secondary Site is first selected, the TSAM unit will do the
following:
1. Send the Secondary Frequency tone sequence
2. Wait for the PL Monitor Delay time
3. Send the PL Monitor tone sequence.
After the dispatcher releases the PTT, there will be a slight delay in receiving a mobile without the proper
PL, due to the time required to send and decode the PL Monitor tone sequence.