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DMD50 Universal Satellite Modem
2.048 Mbps
1.544 Mbps or Below
IBS:
2.048 Mbps or below
Closed Network:
8.448:
6.312:
2.048:
1.544:
Any Rate 2.048 & lower:
D.1.1 Operational Case Examples
For best results always begin setup by setting the data rate to 512 Kbps.
This data rate is applicable for all modes and as such provides a
convenient launch point for setting up the modem.
operation can be entered from this starting point.
Case 1: IDR 8.448 Mbps, 3/4 Rate Viterbi
Starting with the Data Rate = 512 Kbps
Modulator:
Method 1 -
Under Interface Menu:
Set mode to IDR
Under Mod Data Menu:
Under Mod IF Menu:
Method 2 -
Under Interface Menu:
Set Mod strap code to: 128
Under Mod IF Menu:
TM118 – Rev. 1.1
1/2, 3/4, 7/8 Rate FEC
1/2, 3/4, 7/8 Rate FEC
1/2, 3/4, 7/8 Rate
96 Kb Framing or No Framing, 3/4, 7/8 Rate FEC
96 Kb Framing or No Framing, 1/2, 3/4, 7/8 Rate FEC
96 Kb Framing or 1/15 Framing or No Framing,
1/2, 3/4, 7/8 Rate FEC
96 Kb Framing or 1/15 Framing or No Framing, 1/2, 3/4,
7/8 Rate FEC
1/15 Framing or No Framing, 1/2, 3/4, 7/8 Rate FEC
Set Interface type
Set Tx clock selection
Set code rate to 3/4 VIT
Set data rate for 8448000
Set desired Tx frequency and power level
Turn IF ON
Set Interface type
Set Tx clock selection
Set desired Tx frequency and power level
Turn IF on
Appendix D
Any mode of
D-
5
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