User's Manual

5.8GHz PDH User’s Manual
78
Appendix D: Frequency Spread Spectrum
- 60
- 40
- 20
0
20
+1 f 1 f 2 f 3 f 4 f 5
QPSK 16QA
M
Example of the transmitting spectrum
Bit Rate
(Mbit/S)
Channel
Spacing
(MHz)
F1
(MHz)
F2
(MHz)
F3
(MHz)
F4
(MHz)
F5
(MHz)
1 4*E1 7 2.7 5.6 6.5 13 17.5
2 4*E1 7 2.8 5.6 7 14 17.5
TX RX
7MHz 4E1
channel Left Middle Right Left Middle Right
1 5730.5 5734 5737.5 5822.5 5826 5829.5
2 5738.5 5742 5745.5 5830.5 5834 5837.5
3 5746.5 5750 5753.5 5838.5 5842 5845.5
(Frequency Unit: MHz / QPSK)