Datum Systems PSM-500L Manual do Utilizador descarregar pdf (Página 15)

Datum Systems PSM-500, 500H & 500L VSAT/SCPC Modem Specification

Rev. 0.86

A-15

TPC Advanced Performance Mode

The TPC Advanced FEC option is a new TPC implementation proprietary to Datum Systems.

These specific modes were optimized for optimized performance covering a broad range of system

needs. They will typically outperform any TPC modes by any modem manufacturer.

TPC-Advanced BPSK/QPSK Performance

TPC Advanced FEC Performance for BPSK, QPSK and OQPSK

Required Eb/No in dB - Typical

Rate -->

0.453-16k 1/2-16k 1/2-4k 3/4-16k 3/4-4k 7/8-16k 7/8-4k 0.922-16k 0.95-4k

BER 14000 14010 14020 14030 14040 14050 14060 14070 14080

1.00E-03 1.44 1.90 1.82 2.54 2.89 3.62 3.83 4.47 5.02

1.00E-04 1.51 2.01 1.97 2.61 3.06 3.72 4.02 4.60 5.30

1.00E-05 1.58 2.08 2.09 2.67 3.20 3.80 4.18 4.70 5.52

1.00E-06 1.63 2.15 2.20 2.72 3.32 3.87 4.31 4.77 5.75

1.00E-07 1.68 2.22 2.38 2.76 3.43 3.93 4.44 4.84 6.10

1.00E-08 1.73 2.27 2.72 2.81 3.52 3.98 4.56 4.91 6.59

1.00E-09 1.78 2.32 3.12 2.85 3.62 4.04 4.68 4.97 7.10

Datum Systems M500 Modem Performance

14000 - TPC Adv Rate 0.453-16k

14010 - TPC Adv Rate 1/2-16k

14020 - TPC Adv Rate 1/2-4k

14030 - TPC Adv Rate 3/4-16k

14040 - TPC Adv Rate 3/4-4k

14050 - TPC Adv Rate 7/8-16k

14060 - TPC Adv Rate 7/8-4k

14070 - TPC Adv Rate 0.922-16k

14080 - TPC Adv Rate 0.950-4k

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5

1E-10

1E-9

1E-8

1E-7

1E-6

1E-5

0.0001

0.001

0.01

0.1

Eb/No

BER

DATUM

SYSTEMS

TPC Advanced QPSK

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 31 32

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