Chapter 4 Element Management System (EMS) Element Properties Configuration
© 2011 Harmonic Inc. 97 ProView 7000 v.2.4, Rev. A
■ Acquisition Mode
1
– Sets the frequency scanning span of the receiver when searching for
the satellite carrier frequency (lock acquisition search range). Options:
❑ Narrow
❑ Wide
NOTE: Wide search is the normal operation mode of the receiver frequency acquisition scan.
Narrow Search mode should be used when symbol rate of the input is lower than 5 MBd.
■ Frequency Drift Compensation – Compensate for LNB frequency drift, see Appendix C,
Front End Card Features for board details. Options:
❑ On
❑ Off
■ BER Threshold (DVB-S only) – Sets the threshold limit to raise the Bit Error Rate alarm.
Range: 0.00001 (0.1x10-4) – 0.1.
■ PER Threshold (DVB-S2 only) – Sets the threshold limit to raise Packet Error Rate alarm.
Range: 0.00000001 (0.1x10-7) – 0.1.
■ Attenuation Level
1
– Internal attenuation for saturated signals (0 – 30 dB).
■ Gain
1
– Internal gain to improve signal strength.
■ Carrier Frequency properties – Radio buttons selection, therefore only one is selected at a
time. Changing the value on one option, changes the other one automatically:
❑ L-Band Frequency Range – Sets the L-Band frequency of the receiver local oscillator.
Range: 950,000 – 2,150,000 (in kHz), adjustable in 125 kHz steps.
❑ Frequency for the band selected in LNB – Sets the frequency of the satellite, according
to the satellite transmitting frequency, adjustable in .125 kHz steps.
■ LNB (Low Noise Block) Properties:
❑ Polarization – Antenna polarization. Options:
• 13V (Vertical)
• 18V (Horizontal)
•Off
❑ LNB Frequency Band – The default is Universal. Options:
• Universal (9.75, 10.6)
• Universal Wide (9.75, 10.75)
•Ku
•C
❑ LNB Local Oscillator Frequency (kHz) –
For Universal and Universal Wide satellite frequencies, the LNB Local Oscillator
Frequency is set according to the 22 kHz Tone setting.
1. Only available with certain hardware configurations, see Appendix C on page 185.
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