Operating instructions

70 1892 1335 - Orion Radio Modem Operating Instructions - v2.9 / Aug 2009
Command Parameters
Description Set Syntax Read
Syntax
Parameter Description Value or
Range
Meaning of Values Default
Value
Operating Frequency AT&F=xxxx.xxxxxx
x
AT&F? xxxx.xxxxxx
x
Transmit frequency Depends on
radio
Frequency in MHz
Over air protocol ATM0=pp ATM0? pp Code for protocol TR Transparent (sampling) mode
TS Standard mode
TU FEC mode TU
TP Packet mode
No. of retries in TP mode ATPRT=n ATPRT? n Number of retries 2 to 19 Number of retries 2
Power level ATS160=b ATS160? b Power level 0 or 1 0 = low power, 1 = high 0
Over the air symbol rate ATS163=n ATS163? n Code for symbol rate 1 2400 s/s
(Max depends on 2 4800 s/s 2
channel spacing) 3 9600 s/s
Sync tolerance ATS166=n ATS166? n Code for number of 0 0 mismatches
mismatches to tolerate 1 2 mismatches 2
2 4 mismatches
3 6 mismatches
RX-TX priority ATS180=b ATS180? b Priority 0 or 1 0=TX waits, 1=TX anytime 0
User data queuing
behaviour
ATMTX=n ATMTX? n Code for behaviour 0 Start transmitting when first byte
received in TX buffer. Stop when buffer
is empty, restart if another byte is
received.
1 Start transmitting when there is a gap in
data input.
2 If port baud rate is similar to or higher
than over-air baud rate, start transmitting
when first byte is received in TX buffer.
If baud rate is lower, wait for a gap in
data input.
2
Read data quality ATS158? - Returned value 0 - 255 Data Quality
XX Not available
Append RSSI and DQ to ATI4=b ATI4? b Feature on/off 0 Do not add info 0
each received message 1 Add info