. I can see that additional ground plane surrounding the synth
may reduce susceptibility to birdies internally generated in the K3.
--
Message: 42
Date: Mon, 6 Sep 2010 21:19:08 -0700
From: Wayne Burdick n...@elecraft.com
Subject: Re: [Elecraft] K3 Synthesizer Stiffener
ground plane surrounding the synth
may reduce susceptibility to birdies internally generated in the K3.
--
Message: 42
Date: Mon, 6 Sep 2010 21:19:08 -0700
From: Wayne Burdick n...@elecraft.com
Subject: Re: [Elecraft] K3 Synthesizer Stiffener Plate Mod
To: Guy
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 v...@rakefet.com
Subject: Re: [Elecraft] K3 Synthesizer Stiffener Plate Mod
: Mon, 06 Sep 2010 19:31:52 -0700
From: Vic K2VCO v...@rakefet.com
Subject: Re: [Elecraft] K3 Synthesizer Stiffener Plate Mod
To: elecraft@mailman.qth.net
Message-ID: 4c85a418.1050...@rakefet.com
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 9/6/2010 4:45 PM, ke7...@aol.com
: Mon, 06 Sep 2010 19:31:52 -0700
From: Vic K2VCO v...@rakefet.com
Subject: Re: [Elecraft] K3 Synthesizer Stiffener Plate Mod
To: elecraft@mailman.qth.net
Message-ID: 4c85a418.1050...@rakefet.com
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 9/6/2010 4:45 PM, ke7...@aol.com
Loud internal speaker audio can cause small VCO sidebands. If
present, it causes them on receive as well as transmit.
73,
Lyle KK7P
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
birdies?
I work hard to keep my rig at the latest factory standard.
Is this an elective or a requirement?
-lu-W4LT-
K3 #3192
*
Message: 13
Date: Tue, 07 Sep 2010 08:53:20 -0700
From: Lyle Johnson k...@wavecable.com
Subject: Re: [Elecraft] K3 Synthesizer Stiffener Plate Mod
To: elecraft
standard.
Is this an elective or a requirement?
-lu-W4LT-
K3 #3192
*
Message: 13
Date: Tue, 07 Sep 2010 08:53:20 -0700
From: Lyle Johnson k...@wavecable.com
Subject: Re: [Elecraft] K3 Synthesizer Stiffener Plate Mod
To: elecraft@mailman.qth.net
Message-ID: 4c865ff0.9040...@wavecable.com
On Sun, 5 Sep 2010 17:55:15 -0600, W0SZ wrote:
Has anyone installed the K3 Synthesizer Stiffener Plate Mod? Do you think
this is an important Mod to install in an old K3?
If you transmit CW, RTTY, or PSK with the speaker on, vibrations from the
speaker can modulate the synthesizer at the
Has anyone done the K3 Synthesizer Plate Mod on older K3? What kind of
problem did it cure. Would appreciate any feed back on this. Thanks and
73, Steve W0SZ
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I installed the synthesizer plates in my K3 (sn02828) on both synthesizers.
One improvement is less birdies. They aren't all gone but much better. The
birdies show up also on the P3 (sn0155) display.
Jim H
KE7VWI
In a message dated 9/6/2010 11:31:05 A.M. Pacific Standard Time,
The birdies aren't microphonic, so why would the stiffener plates make
any difference?
73,
Dave AB7E
On 9/6/2010 4:45 PM, ke7...@aol.com wrote:
I installed the synthesizer plates in my K3 (sn02828) on both synthesizers.
One improvement is less birdies. They aren't all gone but much
I installed a SubRX last January and of course that included an additional
Synth. Would that have had the plate on it? What does it look like? I'll
open the unit and take a look.
73
jim ab3cv
On Mon, Sep 6, 2010 at 9:28 PM, David Gilbert xda...@cis-broadband.comwrote:
The birdies aren't
Jim, it's a metal plate covering the front of the synth pc board. You can
see photos of it here. Figure 6 no stiffner. Figure 7 Synth with the
stiffener plate:
http://www.elecraft.com/manual/ELECRAFT%20KSYN3%20Stiffener%20Mod%20Rev%20D.
pdf
Ron AC7AC
-Original Message-
I installed a
On 9/6/2010 4:45 PM, ke7...@aol.com wrote:
I installed the synthesizer plates in my K3 (sn02828) on both synthesizers.
One improvement is less birdies. They aren't all gone but much better. The
birdies show up also on the P3 (sn0155) display.
There is no point to installing it on the
I found the installation docs on the stiffener plate. It calls for
stiffeners on both synths.
73
jim ab3cv
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Post:
On 9/6/2010 7:39 PM, Jim Miller wrote:
I found the installation docs on the stiffener plate. It calls for stiffeners
on both synths.
Maybe someone from Elecraft will comment on this.
What I said in my previous post was what I was told by one of the Elecraft
staff. The
person said the plate
That was recommended by Wayne. One obvious reason is that it'll cause no
harm if you ever need to swap synthesizers (or do it by accident). I don't
know if there are other reasons.
Ron AC7AC
-Original Message-
I found the installation docs on the stiffener plate. It calls for
I think there may be a bit of extra shielding with the plate on the
front of the board. This puts grounded metal on both sides of the
board.
73, Guy.
On Mon, Sep 6, 2010 at 11:01 PM, Ron D'Eau Claire r...@cobi.biz wrote:
That was recommended by Wayne. One obvious reason is that it'll cause no
Exactly.
73
Wayne
N6KR
On Sep 6, 2010, at 8:28 PM, Guy Olinger K2AV wrote:
I think there may be a bit of extra shielding with the plate on the
front of the board. This puts grounded metal on both sides of the
board.
__
Elecraft
Has anyone installed the K3 Synthesizer Stiffener Plate Mod? Do you think
this is an important Mod to install in an old K3? Thanks for the
information. Steve W0SZ
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Home:
Hi Steve.
I installed the stiffener plate mod on both synth boards in my K3, s/n 559.
It probably is only really needed if you run CW, with the internal speaker
on, and the sidetone turned up fairly loud. It is under those circumstances
that the speaker vibration can flex the synth board,
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