Radyne OM20 Specifications Page 19

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DMD1050 Satellite Modem Board Installation
2.5.1 Standard DMD1050 Factory Configuration Settings
Implementing Strap Code 26 can set the following modem configuration.
Refer to Table 4-4 for an explanation and tabular listing of available Strap
Codes. The Frequency and Modulator Output Power are set independently of
IMPORTANT
the strap code.
Modulator:
Data Rate: 2.048 Mbps
Mode: Closed Network
Satellite Framing: None
Scrambler: V.35 (IESS)
Inner FEC: 1/2 Rate Viterbi
Outer FEC: Disabled
Modulation: QPSK
Frequency: 950 MHz
Modulator Output Power: -20 dBm
Demodulator:
Data Rate: 2.048 Mbps
Mode: Closed Network
Satellite Framing: None
Scrambler: V.35 (IESS)
Inner FEC: 1/2 Rate Viterbi
Outer FEC: Disabled
Modulation: QPSK
Frequency: 950 MHz
To lock up the modem, enter ‘IF Loopback Enable’ under the Test Menu, or connect a Loopback
Cable from TX port to RX port.
Using the modem’s loopback capabilities with the Ethernet data interface can cause
undesirable network loops. Before you do any data test with an Ethernet interface,
make sure to use two modems connected back-to-back. If you use one modem and a
IMPORTANT
loopback, the results will not be as desired.
MN-DMD1050 2–3
Revision 9
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