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

DMD2050E Universal Satellite Modem
Closed Net All possible combinations are allowed.
NOTE: DVB settings require the DVB NETWORK SPEC and EBEM settings require the
EBEM NETWORK SPEC.
4.4.2.2

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.
4.4.2.3

IF (menu)

IF MENU
FREQUENCY (MHz) {50 – 90 MHz, 100 – 180
MHz, or 950 - 2050
MHz}
SPECTRUM {NORMAL INVERTED}
MODULATION {BPSK, QPSK, OQPSK,
8PSK, 8QAM, 16APSK,
16QAM}
SPECTRAL MASK {MIL-188-165A,
INTELSAT 0.35, DVB
0.35, DVB 0.25}
SWEEP RANGE (kHz) {±0 to 255 kHz}
SWEEP DELAY (Sec) {0.0 – 6500.0 sec}
REACQ RANGE (Hz) {0 – 65500 Hz}
AGC TCONST (ms) {0 – 99999ms}
ADJ CARRIER PWR {Normal, Suppressed}
FAST ACQUISITION {DISABLE, ENABLED}
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 Frequency in 1 Hz increments.
Invert the direction of rotation for PSK Modulation. Normal
meets the IESS Specification.
Select the demodulation type.
Set the spectral shape of Tx Data Filter.
Set the acquisition range for the demodulator
Set the reacquisition delay time in 1/10
Set the reacquisition sweep in 1 Hz increments.
Set AGC Time Constant when in RFM mode
Set adjacent carrier as Normal or Suppressed (High Power).
Unit will increase or decrease post discrimination gain
appropriately.
Disable or enable the RX Fast Acquisition for low symbol rates.
User Interfaces
second increments.
th
4–15