The New K3S to the Old K3

[Bill Levy]

The amount of difference between both will only be noticed by those who
have the gear to measure it or an engineering degree.

The Collins KWM2A was modified continuously over it's 25 year or more build
life.
In those days there was always a final resistor that went in to the box
after all the tests were made and then after the resistor box was removed
the last resistor went in so the radio could meet it's measured specs.
Audio boxes were made the same way. So each was different because all those
5% resistors were all a bit different so each radio was always just a bit
different.

What I am trying to say is that there ain't much difference here beween the
3 and 3S.

However getting a transmit monitor and wattmeter on the PT3 is a vast
improvement for very little money.

I ordered a pair of new synthesizer board just so I could A/B two radios
and see if I could tell the difference. I will let you all know after a
test drive or two!


I started with crystals and DX60B so their is just no comparison to
incremental changes by Elecraft.

It is the radio of choice by the cognoscenti. Of this I have no doubt.

All best guys. N2WL Bill
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[Jim Brown-10]

On Thu,5/14/2015 7:51 PM, William Levy wrote:
> The amount of difference between both will only be noticed by those who
> have the gear to measure it or an engineering degree.

And by those running multiple stations at high power with antennas in
close proximity. Like SO2R contesting, multi-transmitter contesting,
county expeditions for CQP (we run four K3s with KPA500, and often have
both CW and SSB on the same band.

As Rob Sherwood said today in his annual talk at Dayton, you will notice
it if you have a close neighbor running power, and he'll notice the
difference when you transmit.

73, Jim K9YC


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[Arie Kleingeld PA3A-2]

I have the new Synt3A boards in my old (?) K3.
It has all the other easy hardware mods installed that have come to us.

Am I desperate for the K3S USB port? No.
The new attenuator and audio-amp? No
The extra pre-amp? Might consider that as an upgrade although I hear
enough band noise when I connect the antenna on the HF bands ( I never
work on 6m).

So my two cents worth: The old K3, mods and synth3A is a super
performer, why move to the 'S'?
I'll wait till the K4 comes along, which will be a next generation
DSP-rig that will blow us away like the K2 and K3 did when they come on
the market.

73,
Arie PA3A

>
> As Rob Sherwood said today in his annual talk at Dayton, you will
> notice it if you have a close neighbor running power, and he'll notice
> the difference when you transmit.
>
>

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