Overview
4 Block Up Converter Systems 6700/6900 series User Guide
Introduction
The Codan Block Up Converter 6700/6900 series is a high-
performance BUC for use in a satellite earth station.
The Block Up Converter 6700/6900 series comprises:
•a BUC
• an LNB
•a TRF
• accessories
The BUC is designed to be mounted on a wide range of earth
station antennas. The LNB and TRF are designed to be direct-
mounted (that is, mounted on the antenna feed support
structure). While some BUCs may be direct-mounted to the
feed, others may be boom-mounted or pedestal-mounted.
The BUC converts transmit L-Band IF signals from the
modem to the required RF band. The LNB converts received
RF signals to IF signals in the L-Band frequency range to
drive the modem receive IF input.
The modem generally supplies the BUC and the LNB with
10 MHz reference signals, and the LNB with the required DC
power. Certain BUCs require external sources of either AC or
DC supply. Certain BUCS and LNBs have internal reference
sources and do not require an external 10 MHz reference
signal.
The TRF is a waveguide filter that ensures transmit signals do
not enter and overload the LNB.
C-Band BUCs are supplied with a waveguide or N-type
output. Ku-Band BUCs are supplied with a waveguide output
only.
NOTE
If your modem cannot supply 10 MHz reference
signals to the LNB and BUC, and DC power to
the LNB (and BUC if this is needed), contact
your Codan representative for information on
accessories and options that may be available.
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