Company Confidential
14
Raveon Technologies Corp.
6. Command Mode Commands
6.1. General Command Common to Data Mode and Paging Mode
These commands apply to the general configuration of the M8T, and are
applicable in both the data modem mode and paging mode.
Command
Command Description
Parameters
Factory
Default
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). Type the
range index (0-7) or the actual desired baud rate.
Range: 0 – 7
0 = 1200 5= 38400
1 = 2400 6=57600
2 = 4800 7=115200
3 = 9600
4 = 19200
3
ATBT
Silence BEFORE Sequence
– Sets period of silence before
the command sequence character in mS.
Range: 0-1000
mS
500
ATCD
Carrier Detect Threshold
– Read/set the carrier detect
threshold, in dBm. -113 means -113dBm.
-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
Handshaking Invert
– Used to invert the RTS handshaking
signal. 0=normal, 1 = inverted.
1 = Invert
0 = Normal active low.
0
ATCT
Command Time Out
– If no valid commands have been
received via the serial port within this time period (in
milliseconds), modem returns to normal operation mode from
Command mode. If the CONFIG button inside the
M8T
is
pressed, this parameter will be automatically set to 60000.
Range: 100-60000mS
60000
AT
E
Echo –
Character echo set on (E1) or off (E0). This applies to
the Command Mode only.
Range: 0 , 1
1 (echo)
ATF
Display frequencies
– Display all of the frequencies
programmed into all of the channel memories.
N/A
ATFT
Transmit Frequency –
Program the transmit frequency for this
channel. Enter in Hz or in MHz. The frequency will
automatically be saved in non-volatile memory (flash) for this
current channel number.
Range:
See product data
sheet. For MURS products,
frequency cannot be
changed.
See product
data sheet.
ATFR
Receive Frequency –
Program the receive frequency for this
channel. Enter in Hz or MHz. The frequency will automatically
be saved in non-volatile memory (flash) for this current channel
number.
Range:
See product data
sheet. For MURS products,
frequency cannot be
changed.
See product
data sheet.
ATFX
TX and RX Frequency –
Program the receive and transmit
frequency for this channel. Enter in Hz or MHz. Same as
issuing an ATFR and an ATFT command. The frequency will
automatically be saved in non-volatile memory (flash) for this
current channel number.
Range:
See product data
sheet.
N/A
AT
HN
Channel Number
Select current radio channel number. This
command does not store the channel number into EEPROM,
Range: 1 - 6
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