Radyne DMD50 Instruções de Operação Página 181

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Appendix D DMD50 Universal Satellite Modem
D-6 TM118 – Rev. 1.1
Demodulator:
Method 1 -
Under Interface Menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
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
Method 2 -
Under Interface Menu:
Set Interface type
Set Buff clock selection
Set Buffer Size
Set Demod strap code to 128
Under Demod IF Menu, set desired Rx frequency
Case 2: IBS 1.544 Mbps, 3/4 Rate Viterbi
Starting with the Data Rate – 512 Kbps
Modulator:
Method 1 -
Under Interface Menu:
Set Interface type
Set Tx clock selection
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 Mod IF Menu: Set desired Tx frequency and power level
Turn IF ON
Method 2 -
Under Interface Menu:
Set Interface type
Set Tx clock selection
Set Mod strap code to: 120
Under Mod IF Menu: Set desired Tx frequency and power level
Turn IF on
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