98
Model Three - Operation Manual
Digital Channel:
Demodulation type: ITU-T J.83 Annex A/B/C standard
Support: 16/32/64/128/256 QAM, QPSK, COFDM
Symbol rate: 4 to 7 MS/sec
Bandwidth: 0.28 to 9.99 MHz
MER: To 36 dB or greater (QAM)
Accuracy: ±2.0 dB
BER: 1E
-3
to 1E
-9
before and after R-S decoding (QAM)
Power measure type: QAM, QPSK, COFDM
Digital Channel Power (Average):
Level range: -25 to +55 dBmV
Accuracy: ±2.0 dB @ 10° to 30° C (50° to 86° F)
±3.0 dB @ -10° to +40° C (14° to 104° F)
Resolution: 0.1 dB
Constellation (Optional):
Display Size: 64 and 256 QAM
Constellation with zoom capability
Tilt Measurement:
Number of channels: 4 to 12
Resolution: 0.1 dB
Limit Test Parameters:
Any of the following may be enabled:
Min video: 40 to 119 dBμV (-20 to +59 dBmV)
Max video: 41 to 120 dBμV (-19 to +60 dBmV)
Max Δ video: 2 to 30 dB
Min Δ V/A: 0 to 15 dB
Max Δ V/A: 5 to 30 dB
Max Δ ADJ: 0 to 20 dB
24-hour video dev.: 0 to 20 dB
Auto Test:
Number of programs: 7 (max)
Tests: Level, Tilt, Spectrum, QAM, Hum, and Limit (any
or all tests may be used in an auto-test program)
Time intervals: 1 to 23 hours
Test times: 1 to 10 times
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
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