Company Confidential
15
Raveon Technologies Corp.
ATR2
Over-The-Air bit rate - This is the data rate the radio
uses to send data over the air. All RF modems in the
network must use the same over-the-air baud rate.
Refer to section 0 for information on how to set the OTA
baud rate.
Range:
0 = 800
5 =
9600 2L
1 = 1200
6 =
19200 4L
2 = 2400
7 =
5142 2L
3 = 4800
8 =
9600 4L
4 = 8000 4L 9 =
2000 2L
10=14.4
k 4L
3
N
ATR3
Serial Port time out – Number of mS of no activityon the
serial port before transmitting the data in its buffer.
Range: 1 - 5000
20 (mS)
N
ATR5
Preamble length – The number of bytes to send over-the-
air in the pre-amble.
Range: 3 - 255
4
**
(Varies based
on data rate
and radio type.
7 typical)
N
ATR8
Frequency Offset.
Used to set the radio on the center of the
radio channel.
Range: -500 to +500
0
**
N
ATRQ
Receiver Signal Level – Reads the Receiver Signal
strength this instant, and returns the level in dBm.
Range: -40 to –130
(dBm)
-
N
ATRS
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.
none
N
ATSL
Serial Number
– Reads and returns a unique serial
number for thjs unit.
Read Only
1 - 999999999
unique
Y
ATSH
Show
–
Display the configuration of the modem. This will
return a page of ASCII characters, showing the main
configuration parameters.
none
None
Y
ATSM
Sleep Mode Operation Enable – When set to 1, the DTR
input line controls the RF-7800W’s low-power operation.
When set to 0, the RF-7800W 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 and transmitter. When set to 4, the receiver is off,
but the transmitter will still transmit GPS positions and
data.
Range: 0, 1, 2, 3, 4
0
N
ATST
Statistics
–
Show the unit’s operational statistics. See
Statistics section of user manual.
0, 1,2, 3, 4, or 5
None
N
ATTD
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
5 = TX all 1s
6 = Test Points ON
7 = Transmit CW
8 = Transmit 1010101…
N
ATTE
Read product temperature
–
Read the internal
temperature of the unit’s circuit board in degrees Celsius.
-40 to +99
-
Y
ATTT
Max Packet Size
–
Set the maximum number of bytes in an
over-the-air packet.
1 - 512
500
N
ATVB
Read DC input Voltage
– Returns the DC input voltage
reading, in mV (12500 = 12.5VDC input).
None
none
Y
