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User Interfaces
INPUT THRESHOLD (dBm)
EB/NO ALARM
DATA (menu)
DATA RATE (bps)
SYMB RATE (sps)
INNER FEC
TPC INTERLEAVER
DIFF CODING
SCRAMBLER SEL
SCRAMBLER CTRL
SAT FRAMING
4-14
{-30 to 90 dbm}
Allows the user to adjust the low level threshold limit for
input power. Input power level below the threshold limit
will trigger a major alarm on the demodulator.
{0.0 to 9.90 db}
Allows the user to set the desired E
receiver. This setting is compared against the receive
E
/N
and commands to the remote modem to increase
b
o
or decrease Transmit Power accordingly are sent.
{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.
Viterbi
Optional FEC Rates:
Sequential
Trellis 8PSK
Turbo ≤ 20Mbps
Turbo >20Mbps
CSC
DVB VIT
DVB Trellis
Allows the user to select the Rx Code Rate and Type
{DISABLED, ENABLED}
Allows the user to disable or enable TPC Interleaver.
Valid only for Radyne turbo codes TPC.495 and
TPC.793.
{ENABLED, DISABLE}
Allows the user to enable or disable the Differential
Decoder. Having the decoder 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.
{ON, OFF}
Allows the user to enable or disable the descrambler
operation.
{1/15 (IBS), 1/15 (Async), 96 Kbps (IDR), EDMAC,
EFAUPC, SCC, EFFICIENT D&I, None}
Used with IDR, IBS, or Asynchronous Interface Only.
Allows the user to select the Framing Type.
DMD50 Universal Satellite Modem
/N
for the local
b
o
{1/2, 3/4, 7/8, None}
{1/2, 3/4, 7/8}
{2/3}
{.793, .495, 1/2, 3/4, 7/8}
{.750, .875}
{3/4}
{1/2, 2/3, 3/4, 5/6, 7/8}
{2/3, 5/6, 8/9}
TM118 – Rev. 1.1
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