Comtech EF Data DMD1050 - Manual (Page 109)

DMD1050 Satellite Modem Board Web Browser
MN-DMD1050 7–15
Revision 9
MIL-STD 188-165A:
(MILSTD-188-165A)
For Data Rates: 9.6 K – 20.0 Mbps
Framing: None
Scrambler: OM73
Spectrum MIL 188 165A
DVB:
EN301-201 and EN300-421
Data Rates: All Rates
Framing Type: DVB
Scrambler Type: DVB
Spectrum Mask: DVB 0.25, 0.35
Closed Net:
All possible combinations allowed, however, the DVB settings
require the DVB network spec.
Strap Code:
{Refer to Strap Code Guide, Table 4-4}
The Strap Code is a quick set key that sets many modem
parameters. Consult the strap code guide for available strap
codes. 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 Output Frequency of
the modem in 1 Hz increments.
Power (dBm): {0 to -25 dBm}
Allows the user to enter the Transmitter Power Level.
Carrier Control:
{ON, OFF, AUTO, VSAT, RTS}
Allows the user to select the carrier type. Refer to Appendix C
for further information.
Spectrum: {Normal, Inverted}
Allows the user to invert the direction of rotation for PSK
Modulation. Normal meets IESS Specification. Spectral
inversion may be required if the BUC LO is higher in frequency
than the BUC output frequency. This creates a spectral inversion
and the IF spectrum must be again inverted to compensate.