[hpsdr] Fwd: Horton Local Oscillator

[KD5NWA]

I believe there is further discussion of this method in the 
SoftRock40 archives.

At 07:49 AM 6/17/2006, Philip Covington wrote:
>***** High Performance Software Defined Radio Discussion List *****
>
><Posted on behalf of Phil VK6APH>
>
>I've had a closer look at Phil N8VB suggestion of dividing down a VHF
>oscillator as a way of generating the I/Q switching signals for
>Horton.  This looks like an excellent idea so I've documented it more
>fully and added some discussion.
>
>The paper is at
>
>< http://216.92.71.47/HPSDR/TEMP_STUFF/Horton%20Local%20Oscillator.doc >
>
>I may have missed something obvious so please go over my logic
>carefully.  We need some Googlers to hunt down suitable VCOs, compare
>phase noise etc.
>
>It's been many years since I've designed a PLL and I'm sure there are
>tools out there now that will simplify the design of the loop filter
>and derive the performance.  If any one has this expertise it would be
>interesting to see how this performs.
>
>Thanks to Phil C for such a neat idea!
>
>73's Phil...VK6APH
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Cecil Bayona
KD5NWA
www.qrpradio.com

"Windows the worlds most successful software virus" 


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