Chapter 7. Technical Specifications; Data Rates; Modulator - Comtech EF Data DMD50 Installation And Operation Manual

Chapter 7. Technical Specifications

7.1

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
2/3 Rate 8PSK
3/4 Rate 8PSK
7/8 Rate 8PSK
2/3 Rate 8QAM
3/4 Rate 8QAM
7/8 Rate 8QAM
3/4 Rate 16QAM
7/8 Rate 16QAM
7.2

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
MN-DMD50– Revision 3
4.8 Kbps to 10.0 Mbps
2.4 Kbps to 10.0 Mbps
3.6 Kbps to 10.0 Mbps
4.2 Kbps to 10.0 Mbps
9.6 Kbps to 20.0 Mbps
4.8 Kbps to 20.0 Mbps
7.2 Kbps to 20.0 Mbps
8.4 Kbps to 20.0 Mbps
9.6 Kbps to 52.0 Mbps
10.8 Kbps to 20.0 Mbps
12.6 Kbps to 20.0 Mbps
36.0 Kbps to 20.0 Mbps
40.5 Kbps to 20.0 Mbps
48.0 Kbps to 20.0 Mbps
14.4 Kbps to 52.0 Mbps
16.84 Kbps to 52.0 Mbps
BPSK, QPSK, OQPSK, 8PSK, 8QAM, 16QAM
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
IF, 1.5:1
L-Band, 2.0:1
0 to -25 dB
IF, ±0.5 dB Over Frequency and Temperature
L-Band, ±1.0 dB Over Frequency and Temperature
Meets IESS 308/309/ 310 Power Spectral Mask
-55 dBc In-Band (50 to 90 MHz, 100 to 180 MHz, 950 to 2050
MHz)
-45 dBc Out-of-Band
>60 dB
OM-73, CCITT V.35 or IBS
Viterbi, K = 7 at 1/2, 3/4 and 7/8
7–1