Paradise P300 specifications Demodulator Specifications, 8PSK/TCM

Harmonics and Spurious	Better than - 55dBc/4 kHz
Transmit On/Off Ratio	55dB minimum
External Transmit Inhibit	By external contact closure or by TTL signal applied to rear panel
	connector. Hardware function overrides processor control

Demodulator Specifications

IF Input Range	P300: -45dBm nominal, ±15dB (desired carrier)
	P310: -20 to -70dBm (desired carrier)
Maximum Composite Signal	P300: 30dB above level of desired input up to a maximum of 0dBm
	P310: 35dB above level of desired input up to a maximum of -10dBm
Frequency Acquisition	Selectable from ± 1 kHz to ± 32 kHz
Range
Acquisition Threshold	< 5dB Eb/No
Acquisition Time	@ 9.6 kbps < 3 seconds at 6dB Eb/No
(rate ½ FEC)	@ 64 kbps < 2 seconds at 6dB Eb/No
	@ 2048 kbps < 500 ms at 6dB Eb/No
Clock Tracking Range	± 100 ppm min
Receive Filtering	6th order Butterworth, group delay equalised (INTELSAT IESS compliant)
BER Performance	In all cases met in the presence of two adjacent carriers each 10dB
	higher than the desired carrier, with V.35 scrambling
	These figures meet or exceed the relevant IESS performance
	specifications.

Viterbi

(all rates)

Sequential

(64kbps)

Sequential

(2048kbps)

Turbo (TPC, QPSK)

(all rates)

8PSK/TCM

(all rates)

8PSK/TCM + Reed- Solomon

(all rates)

1 x 10-4

1 x 10-8

1 x 10-4

1 x 10-8

1 x 10-4

1 x 10-8

1 x 10-4

1 x 10-8

1 x 10-3

1 x 10-8

1 x 10-4

1 x 10-10

Rate ½

4.7dB

7.2dB

4.3dB

6.4dB

5.6dB

7.5dB

2.6dB

3.7dB

Rate ¾

6.1dB

8.8dB

5.4dB

7.3dB

6.1dB

8.1dB

3.5dB

4.5dB

Rate

7.1dBf

9.5dB

6.4dB

8.6dB

6.9dB

8.4dB

6.0dB

8.3dB

Rate

b

6.3dB

10.4dB

6.1dB

7.3dB

P300H P300 Series Modem Installation and Operating Handbook Page 25