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Paradise P300 User Manual

Page 113

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P300H

P300 Series Modem Installation and Operating Handbook

Page 113

Rx/LNB: 1:LNB Type 2:DC & References

3:SHF Frequencies

Change, BUC/LNB, Rx/LNB Menu

LNB Attached[?] 1=None 2=Other 3=3.625-4.2G 4=10.95-11.45G

5=10.95-11.7G 6=11.2-11.7 7=11.7-12.2 8=12.25-12.75

Change, BUC/LNB, Rx/LNB, LNB Type Menu

6.12.7 Change, BUC/LNB, Rx/LNB Menu

Options for

LNB Type

, and

DC & References

are only offered on L-Band modems.

Each option is defined in the following paragraphs.

6.12.8 Change, BUC/LNB, Rx/LNB, LNB Type Menu

The table below specifies the parameters for the listed LNB types:

Description

Low Frequency Limit

High Frequency Limit

Frequency Shift

None

Modem IF +/- limits around user set SHF Frequency Shift

Other

Modem IF +/- limits around user set SHF Frequency Shift

Std C

3.635 GHz

4.200 GHz

* 5150 MHz

Std Ku

10.950 GHz

11.450 GHz

10000 MHz

10.95-11.7G

10.950 GHz

11.700 GHz

10000 MHz

11.2-11.7G

11.200 GHz

11.700 GHz

10250 MHz

11.7-12.2G

11.700 GHz

12.200 GHz

10750 MHz

12.25-12.75G

12.250 GHz

12.750 GHz

11300 MHz

As with the BUC’s, the difference between

None

and

Other

is that with

Other

the operator can configure

the modem to supply a 10MHz reference and a DC PSU to the LNB. With

None

, these options are not

available.

* Note the `Std C` LNB uses a high side Local Oscillator (LO), and the received SHF Frequency is LO - IF
Frequency (not LO + IF as with most other bands). This is somewhat academic as from V3.85 onwards this
is handled automatically and the modem displays the correct SHF frequency. Note however that with the
LNB Type set to

None

or

Other

, there is no way to manually enter a SHF offset which uses a High Side

LO.