Just curious. The synthesizer uses a DDS which feeds the PLL circuit. The DDS output is filtered through a 4 pole crystal filter to remove spurs. So why use a DDS at all? The only thing I can figure is that a DDS always has lower phase noise than the DDS reference oscillator. Is this why?
Jim ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com