User Manual

MDS 05-4670A01, Rev. E SD Series Reference Manual (x710 Mode) 35
NOTE: The RSSI samples the incoming signal for one to two seconds
before providing an average reading to the connected PC.
RTSKEY [ON, OFF]
RTS Keying
Behavior
Used to set/display how the radio responds to RTS keying. The default
setting is RTSKEY OFF . RTSKEY ON causes the radio to respond to RTS by
keying the transmitter. When RTSKEY OFF is selected, key-on-RTS is
suppressed.
NOTE: Terminal emulators such as HyperTerminal and Procomm
typically initiate the RTS signal continuously upon the start of
a connection. When connected to the radio’s COM2 payload
port, this typically causes the transmitter to remain constantly
keyed. In such cases, RTSKEY OFF allows a terminal emulator
to be connected to the radio’s COM2 port without the need for
special cables or a break-out box.
RTU [ON/OFF/0-80]
RTU Emulator This command enables or disables the radio’s internal RTU simulator,
which runs with proprietary polling programs such as 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]
Receive Frequency This command selects or shows the radio’s receive frequency in MHz.
The frequency step size is 125 Hz.
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. For a list of frequency bands per radio model, refer to
“ Technical Specifications” on Page 43.
RXATTN [ON or OFF]
Receive Attenuation Enables or disables receive attenuation. Enable receive attenuation
when a remote is in close proximity to a master (such as on a test bench).
RXLEVEL [–20 to 0]
RX Audio Output
Level
The RXLEVEL command selects or shows the desired receive audio output
level. For more information, refer to the detailed description of analog
operation beginning on Page 46.