[Elecraft] K3 Synthesizer Stiffener Plate Mod

[elecraft at g4fre.com]

There must be some point, as putting it on the sub vco is still mentioned in 
multiple places on the elecraft web site... 

from http://www.elecraft.com/order_form_parts.htm#K3 Parts:- 

"K3STFNR  K3 Synthesizer Stiffener Plate Kit   Included on all new K3s 
(***one ea. per synthesizer board***)" 

and 

http://www.elecraft.com/manual/ELECRAFT%20KSYN3%20Stiffener%20Mod%20Rev%20D. 
pdf 

"If your K3 is equipped with the KRX3 subreceiver it will have two KSYN3 
synthesizers. Both boards should bemodified if the user chooses to make this 
modification". 

As you say you only transmit on the "main VCO"  so putting the shield on the 
main vco would deal with speaker rumble issue so putting it on the subvco 
maybe to improve shielding? 

Dave 

ww2r 


Message: 36
Date: Mon, 06 Sep 2010 19:31:52 -0700
From: Vic K2VCO <vic at rakefet.com>
Subject: Re: [Elecraft] K3 Synthesizer Stiffener Plate Mod
To: elecraft at mailman.qth.net
Message-ID: <4C85A418.1050607 at rakefet.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed 

On 9/6/2010 4:45 PM, ke7vwi at aol.com wrote: 

There is no point to installing it on the synthesizer that's used for the
subreceiver.
This synth is never used for transmitting. The purpose of the plate is to 
keep
vibrations
from the internal speaker from causing a change in tx frequency. 

It is known that sometimes changing the routing of the cables that go to the
synths will
affect the strength of birdies, so that may be why you noticed an 
improvement!
-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/