Dmd2401 lb/st technical specifications – Comtech EF Data RCF6001 User Manual
Page 76

Operation
RCF6001 Satellite Terminal
Page 3-2
TM082 Rev. 1.0
DMD2401 LB/ST Technical Specifications
Transmit and Receive Data Rates
DMD2401LB
BPSK - 9.6 to 1024 Kbps, Rate 1/2 (Standard)
QPSK - 19.2 to 2048 Kbps, Rate 1/2 (Optional)
QPSK - 28.8 to 2048 Kbps, Rate 3/4 (Optional)
QPSK - 33.6 to 2048 Kbps, Rate 7/8 (Optional)
Data Rate Setting: Selectable in 1 bps steps
Modulator/Tx Specifications
Frequency
950-1525 MHz
Reference Frequency Signal
10 MHz
Reference Stability
1x10
-7
Optional
1x10
-8
, 1x10
-9
Frequency Resolution
100 Hz
Output Level
-5 to -30 dBm
Phase Noise
100 Hz
-60 dBc
1000Hz
-70 dBc
10 KHz
-75 dBc
100 KHz
-85 dBc
Spurious and Harmonics
-50 dBc
Impedance
50 ohms
Return Loss
14 dB
Output Voltage
Output Current
10 MHz Reference levels
-10 dBm, ± 5 dB
Connector
SMA
Demodulator/Rx Specifications
Frequency
950-1525 MHz
Frequency Resolution
100 Hz
Carrier Acquisition
± 30 KHz
Input Carrier Range
-65 to -40 dBm
(Symbol Rate <64 KHz)
-50 to -30 dBm
(Symbol Rate >640 KHz)
Aggregate Power
Min. of -10 dBm or 35 dBc
Impedance
50-ohm
Return Loss
8 dB Min.
Output Voltage
Output Current
10 MHz Reference levels
-10 dBm, ± 5 dB
Connector
Type-F
Typical Eb/No (Viterbi) Rate 1/2 Rate 3/4 Rate 7/8
@ BER=10
-5
5.1
6.2
7.5
@ BER=10
-7
6.2
7.7
8.6
Typical Eb/No, @ 64 Kbps
Sequential
Rate 1/2 Rate 3/4
Rate 7/8
@ BER=10
-5
4.0
5.0
6.1
@ BER=10
-7
4.9
5.9
7.4
Descrambler:
Intelsat V.35, mode selectable
Data Buffering:
8 bits to 262,144 bits, in 8-bit steps
Terrestrial Interfaces:
RS-449/422, RS232 or V.35