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Total 3 documents matching your query.

1. LF: Alternative high resolution frequency source for LF (score: 1): Author: Andy Talbot <[email protected]>; Date: Wed, 25 Nov 2015 22:00:07 +0000; Although DDS sources seem to more-or-less dominate where high resolution / accuracy is needed, there is another route that could be worth investigating: Fractional-N synthesis with addtional divide; /rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00576.html (11,077 bytes)
2. Re: LF: Alternative high resolution frequency source for LF (score: 1): Author: DK7FC <[email protected]>; Date: Wed, 25 Nov 2015 23:48:04 +0100; Hmm, Use Spectrum Lab with a GPS reference signal, compensating the soundcard drift, and a GPS-locked mixer and you're down in the 10 uHz range and also ready for nearly any mode used on the band! :-; /rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00581.html (11,432 bytes)
3. Re: LF: Alternative high resolution frequency source for LF (score: 1): Author: Andy Talbot <[email protected]>; Date: Wed, 25 Nov 2015 23:26:52 +0000; Fref 10 MHz R div 20 VCO / Output Divider 50 External Divider 512 Final output freqeuncy 137000.5120 Hz Step Size 10 uHz DDS Chip Output Freq 70.14426 MHz VCO Fundamental 3507.213108 MHz Fcomp 0.5000; /rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00584.html (16,062 bytes)

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