Comtech EF Data DMD1050 - Manual (Page 117)

DMD1050 Satellite Modem Board Web Browser
MN-DMD1050 7–23
Revision 9
MIL\188-165A:
(MILSTD-188-165A)
For Data Rates: 9.6 K – 20.0 Mbps
Framing: None
Scrambler: OM73
Spectrum MIL 188 165
DVB:
(Per EN301 201 and 300 421)
Data Rates: All Rates
Framing Type: DVB
Scrambler Type: DVB
Spectrum Mask: DVB 0.25, 0.35
Closed Net:
All possible combinations allowed, however, DVB settings
requires the DVB network spec.
Strap Code: The Strap Code is a quick set key that sets many modem
parameters. Consult the strap code guide for available strap
codes. Refer to Appendix G. Parameters set by strap code:
Data Rate
Inner Code Rate
Satellite Framing
Scrambler
Drop and Insert
Outer Code Rate (Reed-Solomon)
Modulation
Frequency (MHz):
{950 – 2050 MHz}
Allows the user to enter the Modulator IF Frequency in 1 Hz
increments.
Spectrum: {Normal, Inverted}
Allows the user to invert the direction of rotation for PSK
Demodulation. Normal meets IESS Specification.
Demodulation:
{QPSK, BPSK, OQPSK, 8PSK, 16QAM}
Allows the user to select the demodulation type.
Spectral Mask:
{ MIL-188-165A, Intelsat 0.35, DVB 0.35, DVB 0.25}
Allows the user to invert the direction of rotation for PSK
Modulation. Normal meets the IESS Specification.
Sweep Range (kHz): {±0 to 255 kHz}
Allows the user to set the acquisition range for the demodulator