With all the talk about the old and new synthesizers, I dug out my old screen captures of some tests I did showing P3 captures as the synthesizers were changed from old to new, in two radios, one looking at the P3 for changes. See:

https://www.nk7z.net/k3/

The images are of my P3, showing another radio with both with the old synthesizer, then with one radio upgraded, then both radios upgraded. There is a very visible change for the better using the new synthesizers.

73s and thanks,
Dave
NK7Z
https://www.nk7z.net

On 06/27/2018 08:41 AM, Wes Stewart wrote:
I have an old K3 that came with the pre-stiffener plate synthesizer.  I discovered the microphonic issue ten years ago and my radio was the first to get the stiffener plate mod.  So, it's old.

I also have a K3S so the old radio is a spare.  For some silly reason after all of these years I decided to upgrade the synthesizer and just did it last week. I haven't evaluated it on the air but listening to a clean signal source I didn't notice this huge difference everyone else is excited about.  But at my age I'm not easily excited.  YMMV.

Wes  N7WS


On 6/27/2018 6:03 AM, hawley, charles j jr wrote:
I decided to bypass the replacement of the synthesizers. Could you describe the “huge” difference?

Chuck Jack
KE9UW


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