Specifications

DMD20/20LBST Universal Satellite Modem User Interfaces
MN-DMD20-20LBST Revision 14 4–8
MODULATION {BPSK, QPSK, OQPSK, 8PSK, 16QAM, 8QAM}
Allows the user to select the modulation type.
SPECTRAL MASK {Intelsat 0.35, DVB SAT 0.35, DVB SAT 0.25, DVB SAT 0.20}
Allows the user to set the spectral shape of Tx Data Filter.
COMPENSATION {0.0 – 1.0}
Allows you to offset output power by up to 1 dbm. This is
intended as a correction for user cabinet connectors.
DATA (menu)
DATA RATE (bps) {Refer to Technical Specs for Data Rates}
Allows the user to set the Data Rate in bps steps via the Front
Panel Arrows or Keypad.
SYMB RATE (sps) Allows the user to view the Symbol Rate.
INNER FEC Viterbi {1/2, 3/4, 7/8, None}
Optional FEC Rates:
Sequential {1/2, 3/4, 7/8}
CSC {3/4}
Trellis (8PSK) {2/3}
Turbo (BPSK) {5/16, 21/44}
Turbo (OQPSK/QPSK) {1/2, 3/4, 7/8}
Turbo (8PSK/8QAM) {3/4, 7/8}
Turbo (16QAM) {3/4, 7/8}
DVB VIT {1/2, 2/3, 3/4, 5/6, 7/8}
DVB Trellis {2/3, 3/4, 5/6, 7/8, 8/9}
LDPC (B/O/QPSK) {1/2, 2/3, 3/4}
LDPC (8PSK/8QAM) {2/3, 3/4}
LDPC (16QAM) {3/4}
Allows the user to select the Tx Code Rate and Type
TPC INTERLEAVER {DISABLE, ENABLE}
Allows user to disable or enable the TPC Interleaver. Valid only
for Radyne Legacy turbo codes TPC.495 and TPC.793
DIFF CODING {ENABLED, DISABLE}
Allows the user to enable or disable the Differential Encoder.
Having the encoder enabled ensures proper phase lock. May
not be adjustable in some modes.
SCRAMBLER SEL {NONE, V.35-IESS, V.35 CITT, V.35 EF, IBS w/Optional
Framing and optional Reed-Solomon, Reed-Solomon
Scrambler w/Optional Framing, CCITT, V.35FC, OM-73,
V.35EF_RS, TPC SCRAMBLER (Turbo Codec), DVB,
EDMAC}
Allows the user to select the descrambler type.
SCRAMBLER CTRL {ENABLED, DISABLE}
Allows the user to enable or disable scrambler operation.
SAT FRAMING {1/15 (IBS), 1/15 (Async), 96 Kbps (IDR), DVB, EDMAC,
EFAUPC, SCC, EFFICIENT D&I, None}
Used with IDR, IBS, or Asynchronous Interface Only.
Allows the user to select the framing type.