Wait, it’s been determined that the K4 definitely has a pin one problem?
Al W6LX/4
> On Jun 21, 2021, at 11:08 AM, David Gilbert wrote:
>
>
> Does any of that mitigate the Pin 1 problem that K9YC keeps pointing out? At
> first glance it doesn't appear to me that it would.
>
> Dave
Does any of that mitigate the Pin 1 problem that K9YC keeps pointing
out? At first glance it doesn't appear to me that it would.
Dave AB7E
On 6/18/2021 7:33 PM, Wayne Burdick wrote:
John,
If the K4 is *off*, then there's no active circuitry involved. However, the
headphone
No difference with or without the microphone: of course, I never had an issue
on CW in the first place!
Tom W4KX
From: Ray
Sent: Saturday, June 19, 2021 2:50 PM
To: Wayne Burdick; Tom Doligalski
Cc: Elecraft Reflector; John Harper
Subject: RE: [Elecraft] K4 observation
Did You Trying
ki
> Cc: Elecraft Reflector; John Harper
> Subject: Re: [Elecraft] K4 observation
>
>
> > On Jun 19, 2021, at 3:17 AM, Tom Doligalski wrote:
> >
> > Actually, it could be a radio station. I haven’t listened long enough to
> > ascertain…
> >
> > Frankl
Did You Trying Transmitting in CW mode with the Mic disconnected ?
WA6VAB ray
From: Wayne Burdick
Sent: Saturday, June 19, 2021 11:41 AM
To: Tom Doligalski
Cc: Elecraft Reflector; John Harper
Subject: Re: [Elecraft] K4 observation
> On Jun 19, 2021, at 3:17 AM, Tom Doligalski wr
> On Jun 19, 2021, at 3:17 AM, Tom Doligalski wrote:
>
> Actually, it could be a radio station. I haven’t listened long enough to
> ascertain…
>
> Frankly, I don’t care! The bigger problem is the rfi when I transmit.
Which *will* be fixed.
Wayne
>
> Tom W4KX
>
> Sent from my iPad
>
>>
Actually, it could be a radio station. I haven’t listened long enough to
ascertain…
Frankly, I don’t care! The bigger problem is the rfi when I transmit.
Tom W4KX
Sent from my iPad
> On Jun 18, 2021, at 11:10 PM, w2xj wrote:
>
>
> Wayne
>
> I seriously doubt this is an RF issue. TV is
Wayne
I seriously doubt this is an RF issue. TV is all digital and has no discrete
audio carrier. TV RF interference would sound like white noise. This sounds
more like an audio ground loop of some sort.
> On June 18, 2021 10:33 PM Wayne Burdick wrote:
>
>
> John,
>
> If the K4 is
John
Would you put that under "Worked All Molars?"
Paul KB9AVO
On Fri, Jun 18, 2021, 10:35 PM Wayne Burdick wrote:
> John,
>
> If the K4 is *off*, then there's no active circuitry involved. However,
> the headphone plug-insertion detect circuit may involve an IC downstream
> that could
John,
If the K4 is *off*, then there's no active circuitry involved. However, the
headphone plug-insertion detect circuit may involve an IC downstream that could
include a schottky diode junction -- a potential way a very strong signal could
be rectified right at the radio end of the cable.
Greaat!
This is NOT a big deal to me… let me know if I can help…
Tom W4KX
From: Wayne Burdick
Sent: Friday, June 18, 2021 6:09 PM
To: Tom Doligalski
Cc: j...@audiosystemsgroup.com; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K4 observation
We’re testing a fix.
W
elecraft.com
https://www.youtube.com/watch?v=u1XRaNpgQDI
John AE5X
https://ae5x.blogspot.com
>Noticed that when the antenna are disconnected, and the K4 turned off, I hear
>a local TV station in the headphones… Never happened on the K3.
__
Elecraft
We’re testing a fix.
W
elecraft.com
> On Jun 18, 2021, at 2:21 PM, Tom Doligalski via Elecraft
> wrote:
>
> Interesting, and possibly related (and I kind of forgot till I read Jim’s
> email).
>
> Noticed that when the antenna are disconnected, and the K4 turned off, I hear
> a
Interesting, and possibly related (and I kind of forgot till I read Jim’s
email).
Noticed that when the antenna are disconnected, and the K4 turned off, I hear a
local TV station in the headphones… Never happened on the K3.
Headphones connected to the rear panel jack.
Gonna get out the
On 6/18/2021 3:58 AM, Tom Doligalski via Elecraft wrote:
For years I used a Radiosport headset with my K3. Worked like a champ. Since I
received my K4 I noticed annoying RFI-induced feedback on the Radiosport when
operating SSB on the K4. Monitor is set to 0.
I would blame that on the radio.
Tom,
We'll try to duplicate and correct this. I'll get back to you.
73,
Wayne
N6KR
> On Jun 18, 2021, at 3:58 AM, Tom Doligalski via Elecraft
> wrote:
>
> For years I used a Radiosport headset with my K3. Worked like a champ. Since
> I received my K4 I noticed annoying RFI-induced feedback
For years I used a Radiosport headset with my K3. Worked like a champ. Since I
received my K4 I noticed annoying RFI-induced feedback on the Radiosport when
operating SSB on the K4. Monitor is set to 0. No trouble on the internal
speaker.
I’m gonna try ferrites next.
Surprised to see this
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