RV-M7 Technical Manual
Frequency Offset. Used to set the radio on the center of the
radio channel.
Number of retries. If this modem does not get an ACK
back when it sends data, this is the number of times it will re-
transmit the packet and wait for an ACK. 0=disabled feature.
RF Carrier Required – When enabled, there must be RF
energy on the channel for the modem to output data.
Streaming data mode only. 1-RF required. 0=ignore RF
energy when receiving.
Receiver Signal Level – Reads the Receiver Signal
strength this instant, and returns the level in dBm.
RSSI (Receive Signal Strength Indicator) – Returns the
signal level of last received packet. The reading is in dBm.
Usable for relative comparison of signals, but absolute value
is within10dB at -90dBm.
No parameters. Returns a
number : -50 to –140
(dBm) varies by model.
Disable Remote Access – When enabled (set to a 0), the
modem will respond to over-the-air RPR requests, Pings, and
over-the-air commands. Default is OFF (1).
0 = Remote Access on
1 = Remote Access off
Set Data Framing Pre-Data Time – When enabled (set to
anything but 255), sets the pre-data time for CD Data
Framing (See 15.1 for more information)
0-254 = Enabled
255 = Disabled
Set Data Framing Post-Data Time – Enabled by ATS120.
Sets the post-data time for CD Data Framing (See 15.1 for
more information)
0 = Remote Access on
1 = Remote Access off
Serial Number – Reads and returns a unique serial number
for thjs unit.
Show – Display the configuration of the modem. This will
return a page of ASCII characters, showing the main
configuration parameters.
LPM Operation Enable – When set to 1, the DTR input line
controls the M7’s low-power operation. When set to 0, the M7
will not go into LPM, regardless of the state of the DTR pin.
When set to 2, the modem is forced into a low-power mode,
disabling the receiver. The unit will still transmit data in sleep
mode 2. Mode 4 keeps RX off but will transmit data.
Statistics – Show the unit’s operational statistics. See
Statistics section of user manual.
Transmit Test Data – When issued, the modem will begin
transmitting data. The type of data sent is set in the
parameter. Entering a <CR> will terminate the transmission.
0 = Go back to normal
1 = Random
3 = 1010… at ¼ baud rate
4 = TX all 0s
(10 pages)
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