Demodulator Menu Options And Parameters - Radyne DMD20 Installation And Operation Manual

DMD20/DMD20 LBST Universal Satellite Modem

4.3.3 Demodulator Menu Options and Parameters

NETWORK SPEC
TM103 – Rev. 2.5
{IDR, IBS, DROP & INSERT, CLOSED NET, DVB SAT}
Used with IDR, or IBS Interface Only.
The Mode Command sets a number of parameters
within the modem to meet a set specification. The
purpose is to eliminate keystrokes and potential
compatibility problems. Additionally, data rates not
covered by the given mode of operation will not be
allowed. If the mode of operation is selected after the
data rate has been entered, then the data rate must be
compatible with the desired mode of operation or the
mode will not be allowed. The following parameters are
set for the given mode of operation and cannot be
changed while the unit is in the given mode of operation:
IDR:
(IESS-308)
For Data rates 1.544, 2.048, 6.312, 8.448 Mbps
Framing Type:
Descrambler type:
Spectrum Mask:
For Data Rates < 1.544 Mbps
Framing Type:
Descrambler Type:
Spectrum Mask:
IBS:
(IESS-309)
For Data Rates < 2.048 Mbps
Framing Type:
Descrambler Type:
Spectrum Mask:
Drop & Insert:
Data Rates:
Framing Type:
Descrambler Type:
Spectrum Mask:
DVB:
Data Rates:
Framing Type:
Scrambler Type:
Spectrum Mask:
Closed Net:
All possible combinations allowed, however, DVB
settings requires the DVB network spec.
User Interfaces
96 Kbps (IDR)
V.35
Intelsat
1/15 (IBS)
IESS-309
Intelsat
1/15 (IBS)
IESS-309
Intelsat
n x 64, n = 1, 2, 3, 4, 5, 6, 8, 10,
12, 15, 16, 20, 24, 30
1/15 (IBS)
IESS-309
Intelsat
All Rates
DVB
DVB
DVB 0.25, 0.35
4-11