Harmonic ProView 7000 - Page 154

Chapter 5 Front Panel Interface Front Panel Root Menu
© 2011 Harmonic Inc. 154 ProView 7000 v.2.4, Rev. A
■ Polarization – DVB-S and DVB-S2. Selects the polarization of the antenna in the satellite
LNB. Default is Off. Options:
❑ Vertical (13V)
❑ Horizontal (18V)
❑ Off
■ LNB Frequency Band – DVB-S and DVB-S2. Selects the receiver frequency band according
to the satellite Low Noise Block (LNB) transmitting frequency band. Options:
❑ Universal (Low: 9.75, High: 10.6)
❑ Universal Wide (Low: 9.75, High: 10.75)
❑ K
u
Band
❑ C Band
■ LO Frequency – DVB-S2 only. Manages the Local Oscillator (LO) frequency, depending on
the LNB LNB Frequency band selected:
❑ Displays the Local Oscillator (LO) frequency for Universal and Universal Wide bands.
❑ Enables setting the LO frequency for K
u
band. Range 8.5 MHz – 13 MHz
❑ Enables setting the LO frequency for C band. Range 5 MHz – 6 MHz
■ 22 kHz Tone – DVB-S2 only. Selects the low of high frequency band to be used when
receiving from an LNB configured to Universal and Universal Wide band. Options:
❑ Low (no tone, selects the 9.75 GHz band)
❑ High (selects the 10.6 GHz or 10.75 GHz band)
NOTE: When using K
u
or C band, the 22 kHz function has no influence.
■ Acquisition Mode – DVB-S and DVB-S2. Sets the frequency scanning span of the receiver
when searching for the satellite carrier frequency (lock acquisition search range). Options:
❑ Wide Search
❑ Narrow Search
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 Mbauds.
■ Drift Compensation – Compensate for LNB frequency drift. With the single and quad
demodulator boards it functions from 8 MBd and up. With the DVB-S/S2 demodulator
board it functions from 5 MBd and up, see Appendix C, Front End Card Features for board
details. Options:
❑ On
❑ Off
■ Attenuation
1
– Internal attenuation for saturated signals (0 – 30 dB).
■ Gain
1
– Internal gain to improve signal strength.
1. Only available with certain hardware configurations, see Appendix C on page 185.