The Flexible Direct Frequency Synthesiser Pages

G4HUP Direct Frequency Synthesis

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Direct frequency synthesisers provide a GPS locked output for transverter local oscillators and other precision applications. This replaces the crystal oscillator with a signal source of similar or better quality, but without the drift associated with temperature variations seen with crystal LO's.

For an outline of the DFS process see August 2007 Midwest VHF-UHF Society Presentation

Click here for October 2007 MUD DFS presentation and here for the Proceedings paper

Here is the November 2007 Martlesham Microwave Round Table paper.

For DFS documentation follow the links at the top of the page. Note that all current DFS supplies are for Issue 3 PCBs. References include design guides and worksheets, filter and frequency schema information, construction notes, Technical Manuals and bill of materials etc.

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Page created 17 Oct 2007

Page last updated 11 Aug 2011