
SATELLINE-M3-TR3
and –TR4
Integration Guide, Version 2.1
28
ChannelList
SL$C?
Get number of channels in channel
list
decimal number
ChannelList
SL$C=nn
Set number of channels in channel
list. nn = 0...40, 0 clears the
whole list
"OK" or "ERROR"
ChannelList
SL$D?
Get channel list default channel
number
decimal number
ChannelList
SL$D=n
Set channel list default channel, n
is channel number
"OK" or "ERROR"
ChannelList
SL$E=1
Search free channel
Modem searches for next traffic-
free channel. Listening time of
traffic is about 2 seconds
Modem shows next free channel by
activating command again
"OK" followed by “channel
n is free”
Value of n is channel
number of next free
channel on channel list
ChannelList
SL$F?
Get active channel number
decimal number
ChannelList
SL$F=n
Set modem to channel number n in
channel list
"OK" or "ERROR"
ChannelList
SL$L?nn
Get channel info.
Index nn=[0...(number of
channels-1)]
Channel number,
Frequency, Channel width,
Tx Power
For example: "CH 1,
430.150000 MHz, 25.0
kHz, 100 mW\0D"
ChannelList
SL$L=Iaa,Nbbb
bbb,Fccc.cccccc
,Wdd.ddd,Peee
ee<CR>
I = Index field aa = 0...39
//Future reservation 0...255
N = Channel number field
bbbbbb = -32767...32767
F = Tx/Rx Frequency field
ccc.cccccc = Tx/Rx Frequency in
MHz (only numbers or "." allowed,
"," is not allowed)
W = Channel spacing/width field
ddddd = 12.5, 20 or 25 (unit is
kHz, trailing decimals are tolerated
e.g. "25", "25.0", "25.00" and
"25.000" are all valid)
P = Transmitter power field eeeee
= 0...35000 (modem rounds the
value to the closest applicable)
Note: 0 means "don't care" value
for power.
<CR> = Carriage return
character
"OK" or "ERROR"
ChannelList
SL$M?
Get status of channel list. 0 = Not
in use, 1 = Channel list in use
"0" or "1"
ChannelList
SL$M=n
Set status of channel list. 0 = Not
in use, 1 = Channel list in use
"OK"
ChannelList
SL$R?
Get listening time (seconds) of
Search free channel function
decimal number