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P300H P300 Series Modem Installation and Operating Handbook Page 108
BUC/LNB: 1:Tx/BUC 2:Rx/LNB
3:Tune Ref
Change, BUC/LNB Menu
Tx/BUC: 1:BUC Type 2:DC & References
3:SHF Frequency 4:SHF Power/Units 5:BUC Control
Change, BUC/LNB, Tx/BUC Menu (fewer option when not L-Band)
6.12 CHANGE, BUC/LNB MENU
This screen allows access to all the features relating to the BUC/LNB or RF chain that follows the modem.
Although most of these facilities relate to the P310 L-Band version of the modem, certain options such as
Tx/Rx Frequency Offsets (which allow the IF frequencies to be entered and displayed as final SHF
frequencies) are also relevant and useful on the standard 70MHz/140MHz P300.
Each option is described in the following paragraphs.
6.12.1 Change, BUC/LNB, TX/BUC Menu
Options for BUC Type, DC & References, & BUC Control are only offered on L-Band modems. BUC
Control is offered subject to the BUC Type and the Modem/BUC control mode selected.
Each option is defined in the following paragraphs.