Cisco Systems 4028650000000 installation and operation guide Configuring Tuning Setup

Configuring Tuning Setup, Continued

5.Set the input signal spectrum inversion setting (I/Q), which allows the operator to track and selected inverted or non-inverted digital signals.

When set to Auto, received digital signals are tracked and inverted for correct selection, as required. When set to Inv (inverted), the received digital signal is always inverted. Conversely, when set to NonInv (non-inverted), the received digital signal is never inverted.

6.The 22 KHz Control is only applicable for dual-band LNB applications. It sets whether or not the 22 KHz tone is available. The selections are On, Off, or Auto (if downlink frequency is greater/less than the crossover frequency, the 22KHz tone is automatically set to on/off). The default is Off.

7.The LNB Power setting determines if power is provided via the input to an external LNB connection.

You can set the LNB Power to Off, 18-H, 13-V, H-NIT, or V-NIT. The default is 18-H. If LNB Power is set to V-NIT or H-NIT, the signal polarization is automatically read from the NIT. Power will not be applied to the LNB if LNB Power is set to Off.

Note: LNB power must be on if DiSEqC is required.

For more information, see LNB Power Settings, on page 4-25.

8.Enter the Network ID of the uplink signal the receiver is to receive when using this preset. You can obtain the network ID from your service provider. The default is 1.

9.Set the Local Oscillator Frequency #1 (LO Freq 1), which sets the satellite antenna LNB local oscillator #1 frequency. For C-Band application, set to 5.15 GHz. For Ku-band single LNB, enter LO Freq and set LO Freq 2 and Crossover Frequency to 0.0. For Ku-band dual LNB, enter LO Freq 1, LO Freq 2 and Crossover Frequency. The default is 10.75 GHz.

10.Set the Local Oscillator Frequency #2 (LO Freq 2), which sets the satellite antenna LNB local oscillator #2 frequency. This option is only used in dual-band LNB applications. LO Freq 2 must be greater than LO Freq 1. The default is 0.0 GHz.

11.Enter the Crossover Frequency. This is an internal threshold frequency used for selecting the LO1 or LO2 frequency, depending on the current downlink frequency settings. This option is only used in dual-band LNB applications. The default is 0.0 GHz.

5-10 D9865 Satellite Receiver Installation and Operation Guide 4035197 Rev C