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DMD15/DMD15L IBS/IDR Satellite Modem User Interfaces
TM051 - Rev. 5.8 4-33
Set Demod strap code to: 120
Under Demod IF menu: Set desired Rx frequency
Under Interface Menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
Case 3: Closed Network, 3/4 Rate Viterbi, IBS Overhead
Starting with the Data Rate = 512 Kbps
Modulator:
Method 1 -
Set mode to IDR:
Under Mod Data menu:
Set code rate to 3/4 VIT
Set Framing for 1/15
Under Interface Menu:
Set Interface type
Set Tx clock selection
Under Mod IF menu: Set desired Tx frequency and power level
Turn IF ON
Method 2 -
Set Mod strap code to: 101
Under Interface Menu:
Set Interface type
Set Tx clock selection
Under Mod IF menu: Set desired Tx frequency and power level
Turn IF on
Demodulator:
Method 1 -
Set mode to: Closed Net
Under Demod IF menu: Set desired Rx frequency
Under Demod data menu:
Set code rate to 3/4 VIT
Set Framing for 1/15
Under Interface menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
Method 2 -
Set Demod strap code to: 101
Under Demod IF menu: Set desired Rx frequency
Under Interface Menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
Case 4: Loop Timing Example
Method 1 -
Set mode to IBS