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3.
Altus APS3G device and specifications
3.1.
Internal UHF radio
The Altus APS3G is equipped with a Satel M3-TR4 UHF radio. The M3-TR4 supports higher order
modulations compared to the previous generation APS-3 products. These modulations allow a
higher data rate without requiring a bigger bandwidth.
The table below shows the modulations supported by the M3-TR4.
Modulation
M3-TR3
M3-TR4
SATELLINE-3AS
Y
Y
PacCrest-4FSK
Y
Y
PacCrest-GMSK
Y
Y
Trimtalk450s(P) (RX fits PacCrest modems)
Y
Y
Trimtalk450s(T) (RX fits Trimble modems)
Y
Y
PacCrest-FST (Option5)
Y
Y
8FSK FEC OFF
N
Y
8FSK FEC ON
N
Y
16FSK FEC ON
N
Y
Table 11: M3-TR4 modulations
Parameter
Value
Operating Frequency
406-470 MHz
Occupied Bandwidth
12.5 kHz or 25 kHz
Gain
145-146 dBm
Table 12: UHF radio specification
Summary of Contents for Altus APS3G
Page 1: ...Po User Manual Altus APS3G ...
