[hpsdr] Cyclops 1st LO VCO

[Lyle Johnson]

> Thinking about this - I presume the first LO has to cover 1000 - 2000 MHz 
> Not too many VCOs will do this...

Not sure where this all fits in the scheme of Cyclops, but in general 
you do not want to use a VCO with a wide range.  For example, in the K3 
th VCO covers a range from 8 to 44 MHz.  But it does so in 64 
overlapping "bands".  This is necessary to keep phase noise manageable.

For example, if a 10V swing moved your VCO 1 GHz, then 1 uV will move it 
1 kHz...

73,

Lyle KK7P


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