Section 7 - Technical Specifications; Data Rates; Modulator - Radyne DMD20 Installation And Operation Manual

DMD20/DMD20 LBST Universal Satellite Modem
Technical Specifications

7.0 Data Rates

BPSK Uncoded
1/2 Rate BPSK
3/4 Rate BPSK
7/8 Rate BPSK
QPSK Uncoded
1/2 Rate QPSK
3/4 Rate QPSK
7/8 Rate QPSK
Rate 2/3 8PSK
3/4 Rate 16QAM
7/8 Rate 16QAM

7.1 Modulator

Modulation
IF Tuning Range
L-Band Tuning Range
Impedance
Connector
Return Loss
Output Power
Output Stability
Output Spectrum
Spurious
On/Off Power Ratio
Scrambler
FEC
Outer Encoder Options
Data Clock Source
Internal Stability
TM103 – Rev. 2.5
4.8 Kbps to 10.0 Mbps
2.4 Kbps to 5.0 Mbps
3.6 Kbps to 7.5 Mbps
4.2 Kbps to 8.75 Mbps
9.6 Kbps to 20.0 Mbps
4.8 Kbps to 10.0 Mbps
7.2 Kbps to 15.0 Mbps
8.4 Kbps to 17.5 Mbps
9.6 Mbps to 20.0 Mbps
14.4 Mbps to 20.0 Mbps
16.84 Mbps to 20.0 Mbps
BPSK, QPSK, and OQPSK (8PSK, 16QAM Optional)
50 to 90, 100 to 180 MHz in 1 Hz Steps
950 to 2050 MHz in 1 Hz Steps
IF, 75-Ohm (50-Ohm Optional)
L-Band, 50-Ohm
BNC, 75-Ohm
SMA, 50-Ohm, L-Band or N-type, 50-Ohm LBST
IF, 20 dB Minimum
L-Band, 14 dB Minimum
0 to -25 dB
±0.5 dB Over Time and Temperature
Meets IESS 308/309/310 Power Spectral Mask
-60 dBc In-Band (50 to 90 MHz, 100 to 180 MHz,
950 to 2050 MHz)
-45 dBc Out-of-Band
>60 dB
CCITT V.35 or IBS (Others Optional)
Viterbi, K = 7 at 1/2, 3/4 and 7/8
2/3 Rate Trellis
Turbo Product Code (Optional)
0.495 - (32,26) x (32,26) x (4,3)
0.793 - (64,57) x (64,57)
(Turbo Supported at all Modulation Types)
Reed-Solomon INTELSAT (DVB Optional)
Internal, External, Rx Recovered
-6
1 x 10 Typical (Optional to 5 x 10
Technical Specifications
7
-8
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7-1