Reference Manual Instruction Manual

438
Set Command Library
• The air link speed depends on the type of modulation used
(GMSK or 4FSK) as well as the channel spacing used. The
tables below summarize the possible combinations.
– If a PDL radio is used:
– If an ADL radio is used:
• If an MDL radio is used and the DSNP protocol is
selected, only the 4800 Bd baud rate can be used.
• The relationship between channel number and frequency
in an LFE radio is summarized in the table below.
GMSK Modulation,
Protocol:
4FSK Modulation,
Protocol:
Channel
Spacing
Bit
Rate
Transparent TRIMTALK DSNP Transparent
25 kHz 4800 • •
25 kHz 8000
25 kHz 9600 • •
25 kHz 16000
25 kHz 19200 •
12.5 kHz 4800 • • •
12.5 kHz 8000
12.5 kHz 9600 •
FEC FEC1 FEC1
GMSK Modulation,
Protocol:
4FSK Modulation, Protocol:
Channel
Spacing
Bit
Rate
Trans-
parent
TrimTalk
450S
TT450S
(HW)
Trim-
MarkII/IIe
TrimMark3 Transparent SATEL
Transparent
FST
25 kHz 4800 • • •
25 kHz 8000
25 kHz 9600 • • •
25 kHz 16000 • •
25 kHz 19200 • • • •
12.5 kHz 4800 • • • •
12.5 kHz 8000 • •
12.5 kHz 9600 • • • •
FEC FEC1 FEC1 FEC2 FEC2
Channel Number Frequency (MHz)
0 869.450 (manufacturer’s channel 19)
1 869.525 (manufacturer’s channel 84)