Chapter 7. Technical Specifications; Modulator - Comtech EF Data DMD-2050E Installation And Operation Manual

Chapter 7. Technical Specifications

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
Viterbi
Sequential
CSC
Trellis (8-PSK)
Turbo (BPSK)
Turbo (OQPSK/QPSK)
Turbo (8-PSK/8-QAM)
MN-DMD2050E Revision 2
Modulator Specifications
BPSK, QPSK, OQPSK, 8-PSK, 8-QAM, 16-QAM, 16-APSK
50 to 90, 100 to 180 MHz in 1 Hz Steps
950 to 2050 MHz in 1 Hz Steps
IF, 50 Ohm (75 Ohm Optional)
L-Band, 50 Ohm
TNC, 50 Ohm
SMA, 50 Ohm, L-Band
IF, 1.5:1
L-Band, 2.0:1
0 to -40 dBm
IF, ±0.5 dB Over Frequency and Temperature
L-Band, ±.5 dB Over Frequency and Temperature
Selectable
Meets MIL-188-165A/B or 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
{1/2, 3/4, 7/8, None} K = 7
{1/2, 3/4, 7/8}
{3/4}
{2/3}
{21/44,5/16} ≤ 20Mbps
{1/2, 3/4, 7/8} ≤ 20Mbps
{3/4, 7/8} ≤ 20Mbps
7–1