User's Manual

System operational description
4 November 24, 2004
The necessary bandwidth for a Data Channel depends on the expected
Data Rate (256, 512, or 1024 kbps).
NOTE: Because the LAUR uses a half-duplex protocol, you can choose
the same frequency for the Control Channel and the Data Channel.
The LAUR has the same frequency and data rate settings as the
associated LRU.
Figure 4
Available channels
Center F.
+1 MHz
Center F.
-1 MHz
DTS
Data Channel Freq. # 1
1024 k (DQPSK)
Center F.
+1 MHz
Center F.
-1 MHz
DTS
256 k (QPSK)
Data Channel Freq. # 1
Center
Freq.
Center F.
+1 MHz
Center F.
-1 MHz
NCS
Control Freq.
0.2 MHz
+0.8
+0.6
+0.4+0.2
- 0.8
- 0.4
- 0.6 - 0.2
+0.8
+0.6
+0.4
- 0.8
- 0.4
- 0.6 - 0.2
+0.8
+0.6
+0.4+0.2
- 0.8
- 0.4
- 0.6 - 0.2
Default channel
or
512 k (16 QAM)