Comtech EF Data SNM-1000 - Manual (Page 156)

SNM-1000 Node Control Modem Revision 3
Remote Control Operation MN/SNM1000.IOM
A–8
Receive BPSK Data
Ordering Command:
Response:
Status:
Response: <channel_no> MC RDA_xxx'cr'
<channel_no> RDA_xxx'cr''lf']
<channel_no> MC RDA_'cr'
<channel_no> RDA_xxx'cr''lf']
Where: xxx = NRM (Standard) or INV (Non-
Standard).
Note: In RX Continuous mode only.
Bulk Demodulator
Configuration Command:
Response:
<channel_no>
BDC_BMNO,yyy.yyyy,ttttt,uuuuu,DDDD,
zzzz.zzz'cr'
<channel_no>
BDC_BMNO,yyy.yyyy,ttttt,uuuuu,DDDD,
zzzz.zzz
'cr''lf']
Where:
B = Modulator set to Burst (B) or
Continuous (C).
M = Descrambler status OFF (0) or ON (1).
N = Differential Decoder status 0 or 1.
O = Reed Solomon Decoder status 0 or 1
(always 0).
yyy.yyyy = Input IF frequency 50.0 to
180.0 MHz.
ttttt = Sweep Center Frequency -35000 to
+35000.
uuuuu = Sweep Frequency Range 0 to
70000.
DDDD = Code Rate '1/2','3/4','7/8' ‘8/9’,
‘5/16’ (B516), ‘21/44’ (2144), or 'BP12'.
zzzz.zzz = Data Rate 4.800 to 2000.0 kbps
(limited by Code Rate).
Maximum Packet Size Command:
Response:
<channel_no> BPS,xxxxxxxx'cr'
<channel_no> BPS,xxxxxxxx'cr''lf']
Where: xxxxxxxx = user length in bits, range of
2 to 16777216 bits (QPSK 1/2, Burst mode).
This command specifies the maximum user
data packet length that the SNM-1000 will
accept in Burst mode. If the received packet is
longer that the specified length, the modem
assumes that the packet has been corrupted
and enters the acquisition mode.