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Comtech EF Data RCS10 User Manual

Page 240

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Spectrum:

INTELSAT IESS-308/309 Compliant

Signal Input Range:

-45 dBm

±

10 dB

Adjacent Channel

Rejection Ratio:

> +14 dBc

Absolute Maximum

Total Input Power:

Maximum Composite Power

Decoder:

Viterbi, K=7 (Sequential optional)

Code rates:

1/2, 3/4, and 7/8 Rate

Descrambler:

CCITT V.35 or IBS (Others optional)

Time for 90%

<2 seconds for data rates > 512 Kbps

Probability of Lock:

<10 seconds for data rates < 512 Kbps

Acquisition Range:

Programmable

±

1 KHz to

±

42 KHz

Sweep Delay Value:

100 msec to 299.9 sec. 100 msec. steps

DMD10 Modem BER Performance

BER vs. E

b

/N

o

Guaranteed E

b

/N

o

(dB)

Rate 1/2 FEC

Rate 3/4 FEC

10

-3

4.2

5.3

10

-6

6.1

7.6

10

-7

6.7

8.3

10

-8

7.2

8.8

10

-10

9.0

10.3

Plesiochronous Buffer

Size:

2 Kbits to 256 Kbits

Centering:

Automatic on Underflow/Overflow

Centering Modes:

IBS: Integral Number of Frames

IDR: Integral Number of Multiple-Frames

Clock:

Transmit clock bit rate, External BNC input clock, recovered demodulator
clock, or SCT clock.

Monitor and Control