Specifications

50 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E
Receive Data
Attenuator
RXPAD [ON/OFF]
This command enables or disables the receive attenuator for the receive
audio level on radios operating in the analog mode. Entering the
RXPAD
command without a parameter shows whether the attenuator is
ON
(enabled) or
OFF (disabled). Entering the RXPAD command followed by
ON enables the receive attenuator; entering OFF disables it.
Receiver
Timeout-Timer
RXTOT [NONE, 1-1440]
The RXTOT command selects or displays the receive timeout timer value
in minutes if the receiver fails in a way no other alarms are gener-
ated.For example, if data is not detected within the specified time. This
timer triggers an alarm (event 12) and forces a switch-over to the
standby radio.
Entering the
RXTOT command without a parameter displays the timer
value in minutes. Entering the
RXTOT command with a parameter
ranging from 1 to 1440 resets the timer in minutes. Entering the
RXTOT
command with the parameter
NONE disables the timer. The default value
is
NONE.
Soft-Carrier Dekey SCD [0-255]
The “soft-carrier dekey” command sets or displays the amount of time
to wait after a de-key request before actually de-keying the radio’s trans-
mitter.
Entering the
SCD command without a parameter displays the timer value
in milliseconds. Entering the
SCD command with a parameter ranging
from 0 to 255 resets the timer in milliseconds. The default setting is 0,
which means that the radio will de-key immediately following removal
of a keying signal. (See “Simplex and Switched Carrier Operation” on
Page 4)
Should you experience problems with repeater operation after changing
the
CTS, PTT or SCD values, contact MDS.
Serial Number SER
This command displays the radio’s serial number as recorded at the fac-
tory.
Receive Pad screen, Page 71
A
B
Transmit Timeout screen,
Page 67
A
B
Serial Number screen, Page 74
A
B