Radyne DMD20 Installation And Operation Manual page 66

DMD20/DMD20 LBST Universal Satellite Modem
SPECTRUM
MODULATION
SPECTRAL MASK
COMPENSATION
DATA (menu)
DATA RATE (bps)
SYMB RATE (sps)
INNER FEC
TPC INTERLEAVER
DIFF CODING
SCRAMBLER SEL
TM103 – Rev. 2.5
{NORMAL, INVERTED}
Allows the user to invert the direction of rotation for PSK
Modulation. Normal meets the IESS Specification.
LBST: Spectral inversion may be required if the BUC LO
is higher in frequency than the BUC output frequency.
When BUC LO is higher than the BUC output frequency,
this creates a spectral inversion and the IF Spectrum
must be again inverted to compensate.
{QPSK, BPSK, OQPSK, 8PSK, 16QAM}
Allows the user to select the modulation type.
{Intelsat 0.35, DVB SAT 0.35, DVB SAT 0.25}
Allows the user to set the spectral shape of Tx Data
Filter.
{0.0 – 1.0}
Allows you to offset output power by up to 1 dbm.
{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.
Allows the user to view the Symbol Rate.
{1/2 Rate VIT, 3/4 Rate VIT, 7/8 Rate VIT,
Optional encoders
1/2 Rate SEQ, 3/4 Rate SEQ , 7/8 Rate SEQ , 2/3 Rate
TRE (8PSK), 3/4 Rate Turbo (.793), 1/2 Rate Turbo
(.495), 1/3 Rate Turbo (.325), 3/4 Rate CSC, 2/3 Rate
VIT (DVB), 5/6 Rate VIT (DVB), 3/4 Rate TRE (DVB),
5/6 Rate TRE (DVB), 7/8 Rate TRE (DVB), 8/9 Rate
TRE (DVB)}
Allows the user to select the Tx Code Rate and Type.
{DISABLE, ENABLE}
Allows user to disable or enable the TPC Interleaver.
Valid only for Radyne turbo codes TPC.495 and
TPC.793
{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.
{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.
User Interfaces
4-7