Ptt [0-255]; Radio [A/B/Auto]; Repeater [On/Off]; Rssi, Rssi - GE MDS 4790M Installation And Operation Manual

38

PTT [0-255]

This command sets or displays the amount of time to wait after the radio
receives a keying signal from either the PTT or RTS lines before actually
keying the transmitter. Entering the
parameter displays the timer value associated with the keying delay selection.
Entering the command with a parameter ranging from 0 to 255 sets the
PTT
timer value in milliseconds. A timer value of zero means that the radio will key
immediately following the keying signal.
The command is applicable for DCE operation, when the radio is keyed either
by the PTT signal or by RTS. The command is not applicable when the radio
is keyed by the command.
KEY
Should you experience problems with repeater operation after changing the
, or values, contact GE MDS.
CTS PTT SCD

RADIO [A/B/AUTO]

This command sets or displays the active transceiver board, or enables
automatic switchover in the event of an alarm condition.
NOTE:
Setting the active transceiver board to A or B disables automatic
switchover in the event of an alarm.
Entering the command without a parameter shows the equipped
RADIO
active/inactive status for both the A and B radios.
Example: >
RADIO
Radio response:
RADIO A
RADIO A IS ACTIVE
RADIO B IS INACTIVE
Entering the command with a parameter of
RADIO
transceiver board to the A or B transceiver board, and disables standby
redundancy.
Entering the command with the parameter
RADIO
redundancy.

REPEATER [ON/OFF]

This command sets or displays whether the radio is configured as a repeater.
Entering the
REPEATER
setting ( =repeater;
ON OFF
followed by enables radio operation as a repeater;
ON
as a repeater.

RSSI, RSSI!

These commands display the Received Signal Strength Indication in dBm
units. The output can range from –50 dBm to –120 dBm.
MDS 4790M (MPT 1411) I/O Guide
Push to Talk Delay
screen, page 55
(Push-to-Talk) command without a
PTT
Radio Selection screen, page 61
Repeater Mode screen, page 56
command without a parameter displays the current
=not a repeater). Entering the

Receive Signal Strength screen,

page 61
or forces the active
A B
enables standby
AUTO
command
REPEATER
disables operation
OFF
MDS 05-3628A01, Rev. B