Dmd15 Automatic Uplink Power Control (Aupc Operation) - Radyne DMD15 Installation And Operation Manual

Operation
Type of Data Rate
Service (Kbps)
64
Small IDR
(With 16/15
128
O/H)
256
384
512
768
1024
1536
1544
IDR
(With 96
2048
Kbps O/H)
6312
8448
1544
8PSK
2048
6312
8448
NOTES:
1. n = code length, k = information symbols and t = symbol error correcting capability.
2. Design objective.

3.19 DMD15 Automatic Uplink Power Control (AUPC Operation)

The DMD15 Modem has an optional built-in provision for Automatic Uplink Power Control (AUPC).
AUPC attempts to maintain a constant E
especially useful when operating over a satellite at Ku-Band Frequencies in locations with high
rainfall periods.
Note: An Asynchronous or IBS Interface is required for AUPC. Also, IBS (Async Framing
Mode MUST be selected to provide a channel for AUPC operation.
3-22
Table 3-1. Reed-Solomon Codes for IDR
RS Code (n,
1
k, t)
(126, 112, 7)
(126, 112, 7)
(126, 112, 7)
(126, 112, 7)
(126, 112, 7)
(126, 112, 7)
(126, 112, 7)
(126, 112, 7)
(225, 205,10)
(219, 201, 9)
(194, 178, 8)
(194, 178, 8)
(219, 201, 9)
(219, 201, 9)
(219, 201, 9)
(219, 201, 9)
/N at the receive end of an SCPC link. This is
b o
DMD15/DMD15L IBS/IDR Satellite Modem
Bandwidth Interleaving
Expansion Depth
[ (n/k) -1 ]
0.125 4
0.125 4
0.125 4
0.125 4
0.125 4
0.125 4
0.125 4
0.125 4
0.0976 4
0.0896 4
0.0899 4
0.0899 4
0.0896 8
0.0896 8
0.0896 8
0.0896 8
2
Maximum
RS Codec
Delay (ms)
115
58
29
19
15
10
8
5
9
7
2
<2
18
13
4
3
TM051 – Rev. 5.8