Spectra Precision ProMark 800 Reference Manual - Manual (Page 242)

230
Set Command Library
particular FEC setting. The different possible
combinations are summarized in the table below.
Conversely, the choice of a protocol or modulation may
force the use of a particular air link speed.
• If an MDL radio is used and the DSNP protocol is
selected, only the 4800 Bd baud rate can be used.
• If an LFE radio is used, the relationship between its
channel number and frequency is given in the table below.
Channel
Spacing
is:
You
set c6
to:
Then
modulation
can only
be:
Protocol can
only be:
FEC Setting
12.5 kHz 4800 GMSK
Transparent,
TRIMALK 450S,
TT450S (HW) or
TrimMark II/IIe.
Maybe set to ON for
Transparent protocol
(FEC1).
Forced to OFF for the
other three.
12.5 kHz 8000 GMSK
TRIMALK 450S
or TT450S (HW)
Forced to OFF
12.5 kHz 9600
GMSK TrimMark3 Forced to OFF
4FSK
Transparent,
SATEL or Trans-
parent FST May be set to ON (FEC 1
for Transparent protocol,
FEC2 for the other two)
25 kHz 4800 GMSK
TRIMTALK
450S, TT450S
(HW) or Trim-
Mark II/IIe
Forced to OFF
25 kHz 8000 Command NAKed
25 kHz 9600 GMSK
Transparent,
TrimTalk 450S
or TT450S (HW)
May be set to ON for
Transparent protocol
(FEC1).
Forced to OFF for the
other two.
25 kHz 16000 GMSK
TrimTalk 450S
or TT450S (HW)
Forced to OFF
25 kHz 19200
GMSK TrimMark3 Forced to OFF
4FSK
Transparent,
SATEL or Trans-
parent FST May be set to ON (FEC 1
for Transparent protocol,
FEC2 for the other two)
Channel Number Frequency (MHz)
0 869.450 (manufacturer’s channel 19)
1 869.525 (manufacturer’s channel 84)
2 869.600 (manufacturer’s channel 85)