Operating instructions

Appendix D DMD50 Universal Satellite Modem
D-8 TM118 – Rev. 1.1
Demodulator:
Method 1 -
Under Interface Menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
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
Method 2 -
Under Interface Menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
Set Demod strap code to: 101
Under Demod IF Menu: Set desired Rx frequency
Case 4: Loop Timing Example
Method 1 -
Under Interface Menu:
Under Tx Setup Menu:
Set INTF to RS-422
Set SCT Source to SCR
Set Tx Clock to SCTE
Set mode to IBS
Method 2 -
Under Interface Menu:
Under Tx Setup Menu:
Set INTF to RS-422
Set SCT Source to SCR
Set Tx Clock to SCTE
Set mode to Closed Net