[Elecraft] Older option boards from K3 upgrade

[Guy Olinger K2AV]

Many times, with spectrum analyzer screen prints, etc. Some of those
in the near-astounding category.

At this point can't refer you to them but you can find them with some searching.

A 3 dB improvement in TX strength will not be noticed either, until it
is used in a situation where you're close to or in the noise.

Close neighbor hams with a sequence of installing the syns, and screen
prints in the reduction in phase noise sidebands for each step, and
noticeable improvement in interfering with one another. For me that
was the killer demo.

The "news" aspect of the syns is pretty well past, so don't see much
about it any more.

73, Guy



On Tue, Apr 25, 2017 at 4:33 PM, Wes Stewart <wes_n7ws at triconet.org> wrote:
> I've seen these rave reviews about the new synthesizer many times.  Has
> anyone actually done an A/B comparison in real time with two otherwise
> identical radios.
>
> I have a K3 with the original synthesizer (the actual one used to develop
> the stiffener plate) and a K3S.  I have not run them side-by-side since I
> don't have any test equipment with sufficiently low phase noise to use.
> Anecdotally, using them one at a time in day-to-day operation, I haven't
> noticed a difference.
>
> Wes  N7WS
>
>
> On 4/25/2017 1:14 PM, Guy Olinger K2AV wrote:
>>
>> I tossed my old synthesizers, in accordance with my dropping my old
>> closet hoarder policy of keeping any and all for 40 years to see if it
>> might be of any use. I actuarially doubt I will see another 40 years.
>>
>> The synthesizer mod has met with such documented success, that I
>> routinely advise someone looking for a used K3 not to bother unless
>> the new synthesizer(s) are in it. Or to work a discount on any K3
>> without them to offset the cost of the synthesizer(s) to be done
>> immediately.
>>
>> All this became apparent very early on after the new synthesizers were
>> introduced.
>
>
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