______________________________________________HARRIS
888-9058-001
WARNING: Disconnect and lockout AC primary power prior to servicing
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8.4.2 Quarter Module Replacement
Figure 8-7 Quarter Module RF FED Bias Pots
Platinum quarter modules can be field replaced with another quarter module FACTORY
TUNED to the same channel. The gain of each quarter module is adjusted by the value
of the quarter module input pad. The input to output phase relationship is set by TL1,
the phase setting coax. This coax must remain with the quarter module, use the
replacement cable already attached to the REPLACEMENT quarter module for proper
phasing. Replacement quarter modules are furnished with the bias for PA usage, for
DRIVER or driver PA usage the bias must be reset.
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