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User Interfaces DMD15/DMD15L IBS/IDR Satellite Modem
4-32 TM051 – Rev. 5.8
Demodulator:
Method 1 -
Set mode to IDR
Under Demod IF menu: Set desired Rx frequency
Under Demod data menu:
Set code rate to 3/4 VIT
Set data rate for 8448000
Under Interface menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
Method 2 -
Set Demod strap code to 128
Under Demod IF menu, set desired Rx frequency
Under Interface Menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
Case 2: IBS 1.544 Mbps, 3/4 Rate Viterbi
Starting with the Data Rate – 512 Kbps
Modulator:
Method 1 - Set Framing to 1/15
Set mode to IBS
Under Mod Data menu:
Set code rate to 3/4 VIT
Set data rate for 1544000
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: 120
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 Framing to 1/15:
Set mode to IBS:
Under Demod IF menu: Set desired Rx frequency
Under Demod data menu:
Set code rate to 3/4 VIT
Set data rate for 1544000
Under Interface menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
Method 2 -