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DMD50 Universal Satellite Modem
Demodulator:
Method 1 -
Under Interface Menu:
Set Framing to 1/15:
Set mode to IBS:
Under Demod IF Menu: Set desired Rx frequency
Under Demod Data Menu:
Under Interface Menu:
Method 2 -
Under Interface Menu:
Set Demod strap code to: 120
Under Demod IF Menu: Set desired Rx frequency
Case 3: Closed Network, 3/4 Rate Viterbi, IBS Overhead
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: 101
Under Mod IF Menu:
TM118 – Rev. 1.1
Set Interface type
Set Buff clock selection
Set Buffer Size
Set code rate to 3/4 VIT
Set data rate for 1544000
Set Interface type
Set Buff clock selection
Set Buffer Size
Set Interface type
Set Buff clock selection
Set Buffer Size
Set Interface type
Set Tx clock selection
Set code rate to 3/4 VIT
Set Framing for 1/15
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
D-
7
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