[minima] Re: 32Mhz IF frequency?
- From: Arv Evans <arvid.evans@xxxxxxxxx>
- To: "minima@xxxxxxxxxxxxx" <minima@xxxxxxxxxxxxx>
- Date: Sat, 6 Dec 2014 12:19:25 -0700
Polyakov mixer is interesting because the LO input is at half the operating
frequency, thus helping to minimize LO leakage into preceding stages.
Other than that it can be constructed in almost any standard mixer
configuration as long as the switching happens on both halves of the LO
cycle. Not sure if it is good or bad as mixers go...just different from
what
we usually see in ham construction.
Arv
_._
On Sat, Dec 6, 2014 at 10:58 AM, Jerry Gaffke <dmarc-noreply@xxxxxxxxxxxxx>
wrote:
> If the polyakov mixer has performance issues of some sort, we could go
> back to a standard second mixer and divide the BFO by two (or four) before
> feeding it to the Arduino. If using an Si5351, we could use a third output
> to drive the Arduino. So the Si5351 can switch mixer LO's as NT7S was
> exploring, and any divider needed to feed the Arduino (or other uC) is also
> nicely hidden inside the Si5351. OK I'll try to shut up.
> Jerry, KE7ER
>
>
> On Saturday, December 6, 2014 9:23 AM, Jerry Gaffke <
> dmarc-noreply@xxxxxxxxxxxxx> wrote:
>
>
> Polyakov. My apologies to Vladimir, and to all you googlers as well.
> Jerry, KE7ER
>
> On Saturday, December 6, 2014 7:45 AM, Jerry Gaffke <
> dmarc-noreply@xxxxxxxxxxxxx> wrote
> After a quick google search for what the heck a Polykahov mixer is,
>
>
>
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