The CDG2000 TX Low Pass Filter

The CDG2000 TX Low Pass Filter

This is one of the simpler boards. It is a conventional switched low pass filter followed by a directional coupler for VSWR detection. There are 6 filters, switched by relays.

The following links provide constructional data, performance information, schematics and PCB layouts.

Note  the PCB and schematic were updated May 2003 to correct relay reversal problem.


Description PCB component placement
Schematic PCB tracking Directional Coupler Performance
PCB tracking reversed

PCB CAD Download – LPF

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