Broadcast Tools SS 2.1/Terminal III Instrukcja Użytkownika Pobierz pdf (Strona 46)

3-10 Section 3: Installation

Moseley SL9003Q 602-12016 Revision G

9. With the POST-BER in the display, press ENTER. This will reset the bit counter

(# BITS) to zero. There should be no errors (# ERRORS = zero) under this

signal condition.

10. Verify BER threshold performance of the system as follows: Increase the variable

attenuation until the QAM MODEM STATUS (BER POST) screen displays a

BER POST reading of approximately 1.00E-06. This will take some time in

order to accumulate enough bits for an accurate measurement.

11. The RSL reading should be approximately:

2 channel:

–89 dBm (+/- 2 dBm)

4 channel:

–89 dBm (+/- 2 dBm)

Composite:

–89 dBm (+/- 2 dBm)

12. Set the variable attenuator for a reading of -60 dBm on the display.

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Broadcast Tools SS 2.1/Terminal III Instrukcja Użytkownika Strona 46