Raveon RV-M7, Техническое руководство, Страница: 23 / 67

RV-M7 Technical Manual
23
5.9 Command Mode Commands
AT
Command
Command Description Parameters
Factory
Default
ATAK
Enable/Disable ARQ – When ARQ is enabled, this modem
will automatically send an ACK packet back to a modem that
sends it data. 0=off, 1=on. Range: 0 – 1
0 (no AKCs
sent)
ATAT
Silence AFTER Sequence - Sets period of silence after the
command sequence characters in mS.
Range:0 – 1000
(mS)
500
ATBD
Baud Rate
– Sets serial com port baud rate (bps). Over-the-
air (throughput) baud rate is set with ATR2 command.
If a PC’s serial baud rate is set higher than the fixed over-the-
air baud rate of the module, hardware handshaking may be
required. With firmware C22 and higher, you may enter the
actual baud rate instead of the index number.
Range: 0
– 7
0 = 1200 5= 38400
1 = 2400 6=57600
2 = 4800 7=115200
3 = 9600
4 = 19200
3
ATBC
Busy Channel Lock Out – Enable/disable the BCL. If
enabled, the modem will not transmit on a radio channel that
is busy (has RF on if). 0-OFF, 1=ON.
Range: 0-1
0
ATBT
Silence BEFORE Sequence – Sets period of silence before
the command sequence character in mS.
Range: 0-1000
mS
500
ATBW
Set/Read IF Bandwidth - Sets the IF bandwidth to narrow
(N) or wide (W). Narrow is for 12.5kHz channels, and wide is
for 25 or 30kHz spaced channels. This command is only
used on the VHF version of the product. The UHF does not
support w
N
N or W
ATCD
Carrier Detect Threshold – Read/set the carrier detect
threshold, in dBm. -113 means -113dBm. Version firmware
and higher. -113
-120 to -60
ATCH
Configure Hardware Flow Control – Enable (1) or disable
(0) flow control. When enabled, the modem will monitor the
RTS line, and if it is negated, stop sending data out the serial
port. If disabled, the modem will ignore the state of RTS, and
always send out charators.
1 = Enable
0 = Disable
0
ATCI Configure Hardware Flow Control Invert – When enabled,
the RTS line will operate on an inverted input (e.g., send data
1 = Enable
0