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MDS 4710/9710 I/O Guide
MDS 05-3305A01, Rev. B
This command displays or sets the desired RF forward output power set-
ting of the radio. The
PWR
command parameter is specified in dBm and
can range from 20 through 37. The default setting is 37 dBm (5 watts).
To read the actual (measured) power output of the radio, use the
SHOW
PWR
command. A dBm-to-watts conversion chart is provided in
Section 7.5 (page 40).
RSSI
This command continuously displays the radio’s Received Signal
Strength Indication (RSSI) in dBm units, until you press the Enter key.
Incoming signal strengths from –50 dBm to –120 dBm can be read.
RTU [ON/OFF/0-80]
This command re-enables or disables the radio’s internal RTU simu-
lator, which runs with MDS’ proprietary polling programs (poll.exe and
rsim.exe). The internal RTU simulator is available whenever a radio has
diagnostics enabled. This command also sets the RTU address that the
radio will respond to.
The internal RTU can be used for testing system payload data or pseudo
bit error rate testing. It can be helpful in isolating a problem to either the
external RTU or the radio.
RX [xxx.xxxx]
This command selects or displays the radio’s receive frequency in MHz.
The frequency step size is 6.25 kHz.
If the customer frequency has not been programmed at the factory, a
default frequency will be programmed in the radio near the center of the
frequency band.
NOTE:
A large change in receive frequency (more than 5 MHz)
requires adjustment of the receiver helical filters for maximum
performance and RSSI. See Section 7.2, Helical Filter Adjust-
ment (page 36) for details.
RXTOT [NONE, 1-255]
The
RXTOT
command selects or displays the receive time-out timer value
in minutes. This timer triggers an alarm (event 12) if data is not detected
within the specified time.
Entering the
RXTOT
command without a parameter displays the timer
value in minutes. Entering the
RXTOT
command with a parameter
ranging from 0 to 255 resets the timer in minutes. Entering the
RXTOT
command with the parameter
NONE
disables the timer.
