Strap Code; If (Menu); Data (Menu) - Comtech EF Data DMD-2050E Installation And Operation Manual

DMD2050E Universal Satellite Modem
4.4.1.2

STRAP CODE

The STRAP CODE is another means for quickly setting several parameters at one time. STRAP
CODE parameters include:
•
•
•
•
See Appendix I, Strap Codes for more data.
4.4.1.3

IF (menu)

IF MENU
FREQUENCY (MHz) {50 – 90 MHz, 100 – 180 MHz, or 950
- 2050 MHz}
POWER (dBm) {0 to -45 dBm}
CARRIER {ON, OFF, AUTO, VSAT, RTS}
SPECTRUM {NORMAL, INVERTED}
MODULATION {BPSK, QPSK, OQPSK, 8PSK,
8QAM, 16APSK, 16QAM}
SPECTRAL MASK {MIL-188-165A, INTELSAT 0.35, DVB
SAT 0.35, DVB SAT 0.25}
COMPENSATION {0 to 1 dB}
4.4.1.4

DATA (menu)

DATA MENU
DATA RATE (bps) See Chapter 7 Technical
Specifications
SYMB RATE (sps)
INNER FEC Viterbi
Optional FEC Rates:
Sequential
CSC
MN-DMD2050E Revision 2
Data Rate
Satellite Framing
Drop and Insert
Modulation
Inner Code Rate
•
Scrambler
•
Outer Code Rate (Reed-Solomon)
•
Network Spec
•
Enter the Modulator IF Output Frequency of the
modem in 1 Hz increments.
Enter the Transmitter Power Level.
Select the carrier type.
Invert the direction of rotation for PSK Modulation.
Normal meets the IESS Specification.
Select the modulation type.
Set the spectral shape of Tx Data Filter.
Set the offset on the transmit output power (allows
for some specific cable loss up to 1dB).
Set the Data Rate in bps steps via the Front Panel
Arrows or Keypad.
View the Symbol Rate.
Set the symbol rate (ITA Mode ONLY)
{1/2, 3/4, 7/8, None}
{1/2, 3/4, 7/8}
{3/4}
User Interfaces
4–6