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

Page 76

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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