Re: [Elecraft] For Sale: Elecraft K2-100

[David Inger]

The radio has been sold and it is going to good home!
 
73 de K6SBA
David in Santa Barbara
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Re: [Elecraft] Elecraft SSB net

[Matthew Cook]

That's why you go and hide on the WARC bands (along with the rare DX)
during these large SSB contests (*grin*).

73

Matthew
VK5ZM

On 27 March 2017 at 11:03, Phil Shepard  wrote:

> The SSB contest wiped out our net.  I could hardly hear the relay
> stations, nor could they hear me. And I was running 500w to a quad at 75’!
> Try again next week.
>
> 73,
> Phil, NS7P
>
> > On Mar 26, 2017, at 3:22 PM, Steve Sergeant 
> wrote:
> >
> > Chuck:
> >
> > I head the SSB net today, but from a 1,960' ridge top above San Jose,
> > CA, using my KX2 and a carefully-tuned loop antenna, I wasn't heard well
> > enough to check-in.
> >
> > --KC6ZKT
> >
> >
> > On 3/26/17 12:28 PM, Chuck Chandler wrote:
> >> Is there an SSB net on some Sunday's but not others? I saw an email last
> >> week but too late to check in.
> >>
> >> 73 de Chuck, WS1L
> >>
> >
> >
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Re: [Elecraft] RF in Microphone

[Dave Hachadorian]

What happens if you transmit 100 watts into a dummy load?


Dave Hachadorian, K6LL
Yuma, Arizona


-Original Message- 
From: Jim Kutsch

Sent: Sunday, March 26, 2017 4:02 PM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] RF in Microphone

Some progress but some new questions. When transmitting at 12 
Watts without
the KPA3 engaged, the transmit audio is completely fine. But, 
once I go to
13 Watts and hear the KPA3 relay engage, the audio distortion is 
back. I'm
beginning to think I have a CONF setting incorrect or the KPA3 is 
bad. Even

with 12 W driving the KPA500, no audio distortion.
The K3S has the KPA3 module but does not have the KAT3 since I'm 
using the

KAP500.

I have CONF:KPA3 set to PA NOR. Am I missing another menu setting 
somewhere?


Jim


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Re: [Elecraft] Elecraft SSB net

[Phil Shepard]

The SSB contest wiped out our net.  I could hardly hear the relay stations, nor 
could they hear me. And I was running 500w to a quad at 75’!  Try again next 
week.

73,
Phil, NS7P

> On Mar 26, 2017, at 3:22 PM, Steve Sergeant  wrote:
> 
> Chuck:
> 
> I head the SSB net today, but from a 1,960' ridge top above San Jose,
> CA, using my KX2 and a carefully-tuned loop antenna, I wasn't heard well
> enough to check-in.
> 
> --KC6ZKT
> 
> 
> On 3/26/17 12:28 PM, Chuck Chandler wrote:
>> Is there an SSB net on some Sunday's but not others? I saw an email last
>> week but too late to check in.
>> 
>> 73 de Chuck, WS1L
>> 
> 
> 
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Re: [Elecraft] RF in Microphone

[Bill Johnson]

I think there is more to it than this.  The return path to the K3s via a 
reflected power from the KPA500 is not acceptable and should be protected.  I 
load my KPA500 into a matched circuit.  Yes, I am sure there could be 
instantaneous issues, but my antennas are pretuned before I use the KPA500.  Is 
there an opportunity for error.  Yes.  I operated a THP 2.5KFX at 1.5KW and saw 
the same antennas and never had an issue to the K3. I know the engineers are 
working on the issue(s).  I suspect a change is en route.

73,
Bill
K9YEQ

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kenneth 
Christiansen
Sent: Sunday, March 26, 2017 7:23 PM
To: Jim Kutsch 
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] RF in Microphone

Hi Jim

The answer to your problem is you have a bad FET in the final of your K3S. I 
had the same problem and my K3S is at Elecraft right now being repaired. The 
distortion above the 12 watt level is the clue.

I also have the KPA500 and the KAT500 and I had a problem with my antenna that 
it would sometimes short out at 500 watts and the KPA500 was not set up for the 
KPA500. I had figured since I bought both units together they would just work. 
I had even read the missing instructions but they did not make sense to me so I 
did not do them. Now that I found out what was involved they make sense but I 
think that part of the instructions should be more clear or a control in the 
MENU should allow the settings to be compatible with the KAP500.

To make this long story short if the KAT500 is not set up to be comparable with 
the KPA500 than if there is a high SWR it does not shut down the KPA500 and 
when the KPA500 does shut down all those high SWR voltages get back to the K3S 
and blow one of the FETs. There are two FETs so the other one tries to make up 
the power and of course the bad one causes distortion similar to a diode being 
placed across the final.

I hope this information helps and for what it is worth I managed to destroy my 
finals twice before I found out what was wrong.

Good luck and 73

Ken
W0CZ
w0cz at i29 dot net

Sent from my iPad

> On Mar 26, 2017, at 4:38 PM, Jim Kutsch  wrote:
> 
> First, thanks to all who answered personally and on the list 
> reflector. To provide more info as several have requested, here's the setup:
> 
> The K3S is connected to a KPA500 then to a KAT500 then 25 feet of coax 
> out to the back porch. There, the coax ends in a  common mode choke, 
> which  in turn is connected by an 18 inch coax to a DX Engineering 4:1 
> BALUN. That feeds a Cobra UltraLite Senior via its 81 feet of 450 Ohm 
> ladder line. The mic distortion happens with and without the KPA500 
> but reports say it's worse at 500 Watts.
> 
> The power supply is an Astron RS35 providing 13.8V idle and 13.5V CW 
> key down at 100 Watts.
> 
> The mic gain is set to 45 and compression to 10. Those seemed to give 
> the correct indication in the ALC meter but the distortion still 
> occurs with 0 compression. I cannot read the ALC indicator myself due 
> to no vision so had another local ham assist with that part of the K3S setup.
> 
> Jim
> 
> 
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 
> Jim Kutsch
> Sent: Sunday, March 26, 2017 12:31 PM
> To: Elecraft@mailman.qth.net
> Subject: [Elecraft] RF in Microphone
> 
> I am a new K3S owner and very pleased. However, on SSB, I am getting 
> reports that my audio is distorted sounding like RF is getting into the 
> microphone.
> I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter 
> cable. I had some RF microphone issues earlier using the PR-781 with a 
> KX3 but a better shielded mic cable and a common mode choke resolved 
> it. Any suggestions before I go in search of a different mic? Also, 
> any recommendations for a boom mount microphone that would be a better 
> choice for the K3S than this PR-781?
> 
> 
> 
> Thanks and 73, Jim, KY2D
> 
> 
> 
> 
> 
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[Elecraft] For Sale: Elecraft K2-100

[David Inger]

After much hand-wringing, I've decided to sell my 100-W K2.  The radio is in
excellent condition, both operationally and cosmetically.  I sent it back to
Don Wilhelm last summer for a "tune-up" and alignment.  Don's report stated
that the radio met or exceeded factory specs (documentation provided to new
owner).
 
The serial number is 31XX, so it is a Rev "B" version which meets current
production.  I am the second owner and I installed most options, including
the 100-watt module.  The radio includes:
KNB2 - Noise Blanker board
KSB2 - SSB board
KIOS2 - Serial Interface (with radio-to-computer cable)
KAF2 - Audio Filter and Realtime Clock
Kenwood MC-43S hand mic
All construction and operators manuals.
 
I love this radio, but I have to let go of some things.  After all these
years, the performance of the K2 is still top shelf; if I can hear it / work
it on my K3, I can do it on my K2.
 
My firm price for the all of the above is $650 including Priority Mail
shipping to any US ZIP code.  If you are anywhere near Santa Barbara, CA, I
would be happy to demo the radio.
 
I do have pictures and, yes, I take PayPal.
 
73 de K6SBA
David Inger
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Re: [Elecraft] RF in Microphone

[Kenneth Christiansen]

Hi Jim

The answer to your problem is you have a bad FET in the final of your K3S. I 
had the same problem and my K3S is at Elecraft right now being repaired. The 
distortion above the 12 watt level is the clue.

I also have the KPA500 and the KAT500 and I had a problem with my antenna that 
it would sometimes short out at 500 watts and the KPA500 was not set up for the 
KPA500. I had figured since I bought both units together they would just work. 
I had even read the missing instructions but they did not make sense to me so I 
did not do them. Now that I found out what was involved they make sense but I 
think that part of the instructions should be more clear or a control in the 
MENU should allow the settings to be compatible with the KAP500.

To make this long story short if the KAT500 is not set up to be comparable with 
the KPA500 than if there is a high SWR it does not shut down the KPA500 and 
when the KPA500 does shut down all those high SWR voltages get back to the K3S 
and blow one of the FETs. There are two FETs so the other one tries to make up 
the power and of course the bad one causes distortion similar to a diode being 
placed across the final.

I hope this information helps and for what it is worth I managed to destroy my 
finals twice before I found out what was wrong.

Good luck and 73

Ken
W0CZ
w0cz at i29 dot net

Sent from my iPad

> On Mar 26, 2017, at 4:38 PM, Jim Kutsch  wrote:
> 
> First, thanks to all who answered personally and on the list reflector. To
> provide more info as several have requested, here's the setup:
> 
> The K3S is connected to a KPA500 then to a KAT500 then 25 feet of coax out
> to the back porch. There, the coax ends in a  common mode choke, which  in
> turn is connected by an 18 inch coax to a DX Engineering 4:1 BALUN. That
> feeds a Cobra UltraLite Senior via its 81 feet of 450 Ohm ladder line. The
> mic distortion happens with and without the KPA500 but reports say it's
> worse at 500 Watts.
> 
> The power supply is an Astron RS35 providing 13.8V idle and 13.5V CW key
> down at 100 Watts.
> 
> The mic gain is set to 45 and compression to 10. Those seemed to give the
> correct indication in the ALC meter but the distortion still occurs with 0
> compression. I cannot read the ALC indicator myself due to no vision so had
> another local ham assist with that part of the K3S setup.
> 
> Jim
> 
> 
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim
> Kutsch
> Sent: Sunday, March 26, 2017 12:31 PM
> To: Elecraft@mailman.qth.net
> Subject: [Elecraft] RF in Microphone
> 
> I am a new K3S owner and very pleased. However, on SSB, I am getting reports
> that my audio is distorted sounding like RF is getting into the microphone.
> I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I
> had some RF microphone issues earlier using the PR-781 with a KX3 but a
> better shielded mic cable and a common mode choke resolved it. Any
> suggestions before I go in search of a different mic? Also, any
> recommendations for a boom mount microphone that would be a better choice
> for the K3S than this PR-781?
> 
> 
> 
> Thanks and 73, Jim, KY2D
> 
> 
> 
> 
> 
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Re: [Elecraft] RF in Microphone

[Jim Brown]

That depends on your voice and how you place the mic. It also depends on 
the Mic Gain setting in the menu. My rigs are set for Low mic gain.


Never set these parameters by the numbers on the knob readouts. Set them 
watching the display of ALC and CMP. These settings should ALWAYS be set 
in this order:


1) Set TXEQ as desired.  I recommend maximum cut of the three lowest 
bands, 6 dB cut of the fourth band, 3-6 dB boost of the two highest 
bands. Tweak the 4th band and the higher bands based on reports from 
good listeners, who should be listening with their IF set wide.


2) With compression OFF (set to zero), set the mic gain for ALC of 5-7 bars.

3) Set CMP so that the display shows about 10 dB of gain reduction on 
voice peaks.


73, Jim K9YC

On Sun,3/26/2017 12:08 PM, Alan. G4GNX wrote:

What Mic Gain and Compression settings do you use with the CM500 headset?

A friend said that he uses MIC=40 and CMP=20, but Howard at Elecraft 
thinks that's far too high.

I found that I can get the correct ALC response using Mic=11 and CMP=20.

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Re: [Elecraft] RF in Microphone

[Don Wilhelm]

Jim,

With that new information, I suggest you email K3support to see if they 
can add anything and suggest a fix.  Let them know the serial number of 
your K3S as well as the firmware level.


73,
Don W3FPR

On 3/26/2017 7:02 PM, Jim Kutsch wrote:

Some progress but some new questions. When transmitting at 12 Watts without
the KPA3 engaged, the transmit audio is completely fine. But, once I go to
13 Watts and hear the KPA3 relay engage, the audio distortion is back. I'm
beginning to think I have a CONF setting incorrect or the KPA3 is bad. Even
with 12 W driving the KPA500, no audio distortion.
The K3S has the KPA3 module but does not have the KAT3 since I'm using the
KAP500.

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Re: [Elecraft] RF in Microphone

[Jim Kutsch]

Some progress but some new questions. When transmitting at 12 Watts without
the KPA3 engaged, the transmit audio is completely fine. But, once I go to
13 Watts and hear the KPA3 relay engage, the audio distortion is back. I'm
beginning to think I have a CONF setting incorrect or the KPA3 is bad. Even
with 12 W driving the KPA500, no audio distortion.
The K3S has the KPA3 module but does not have the KAT3 since I'm using the
KAP500.

I have CONF:KPA3 set to PA NOR. Am I missing another menu setting somewhere?

Jim


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Re: [Elecraft] RF in Microphone

[Don Wilhelm]

Jim,

Your mic gain is on the high side.  If you have the mic gain range set 
to "Low", try changing it to "High" and lowering the gain to the 10 to 
15 range.
Turn compression to zero while the mic gain is adjusted for 5 to 7 bars 
(7 on peaks) on the ALC meter.  After making that setting increase the 
compression to whatever you desire - most like to run compression in the 
10 to 15 range.


See if you can borrow someone who can see the ALC meter while you talk.
Set the K3 to TX TEST so you don't send RF while you make those adjustments.

73,
Don W3FPR

On 3/26/2017 5:38 PM, Jim Kutsch wrote:


The mic gain is set to 45 and compression to 10. Those seemed to give the
correct indication in the ALC meter but the distortion still occurs with 0
compression. I cannot read the ALC indicator myself due to no vision so had
another local ham assist with that part of the K3S setup.

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Re: [Elecraft] Elecraft SSB net

[Steve Sergeant]

Chuck:

I head the SSB net today, but from a 1,960' ridge top above San Jose,
CA, using my KX2 and a carefully-tuned loop antenna, I wasn't heard well
enough to check-in.

--KC6ZKT


On 3/26/17 12:28 PM, Chuck Chandler wrote:
> Is there an SSB net on some Sunday's but not others? I saw an email last
> week but too late to check in.
> 
> 73 de Chuck, WS1L
> 


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Re: [Elecraft] RF in Microphone

[Mike VE3YF]

Jim:

Personally I think that the mic gain is up way to far. I use a PR-40 so 
the setting should be roughly the same. My mic gain is 12 and cmp is 15. 
I also have the mic setting to the hi instead of the recommended low 
setting and also have the TXG VCE set to 2.0. Give or take, my setting 
should be pretty good for you, of course depending on your voice 
characteristics. I think is is better to be a bit on the low side for 
the settings then to be on the high side. Give it a whirl and see how 
they work out for you.

--

*73 De Mike*
*VE3YF

_/http://www.ve3yf.com/_*

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Re: [Elecraft] RF in Microphone

[Jim Kutsch]

First, thanks to all who answered personally and on the list reflector. To
provide more info as several have requested, here's the setup:

The K3S is connected to a KPA500 then to a KAT500 then 25 feet of coax out
to the back porch. There, the coax ends in a  common mode choke, which  in
turn is connected by an 18 inch coax to a DX Engineering 4:1 BALUN. That
feeds a Cobra UltraLite Senior via its 81 feet of 450 Ohm ladder line. The
mic distortion happens with and without the KPA500 but reports say it's
worse at 500 Watts.

The power supply is an Astron RS35 providing 13.8V idle and 13.5V CW key
down at 100 Watts.

The mic gain is set to 45 and compression to 10. Those seemed to give the
correct indication in the ALC meter but the distortion still occurs with 0
compression. I cannot read the ALC indicator myself due to no vision so had
another local ham assist with that part of the K3S setup.

Jim


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim
Kutsch
Sent: Sunday, March 26, 2017 12:31 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] RF in Microphone

I am a new K3S owner and very pleased. However, on SSB, I am getting reports
that my audio is distorted sounding like RF is getting into the microphone.
I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I
had some RF microphone issues earlier using the PR-781 with a KX3 but a
better shielded mic cable and a common mode choke resolved it. Any
suggestions before I go in search of a different mic? Also, any
recommendations for a boom mount microphone that would be a better choice
for the K3S than this PR-781?

 

Thanks and 73, Jim, KY2D

 

 

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[Elecraft] K1-4 plus extras for sale

[Myron Cherry]

I have for sale a K1-4 (40,30,20,17) including a K1-2 board (80,15), internal 
antenna tuner, tilt stand, and K1 backlight.  All in excellent condition both 
electrically and cosmetically.  $475 shipped to lower 48 states.


Thanks,

MyronK4YA

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Re: [Elecraft] Elecraft SSB net

[Ian Kahn]

There is typically a net every Sunday, at 1800 UTC, on 14.3035 +/-. It may
have been cancelled this week due to the CQ WPX SSB contest.

73 de,


--Ian
Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624  North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468

On Sun, Mar 26, 2017 at 3:28 PM, Chuck Chandler 
wrote:

> Is there an SSB net on some Sunday's but not others? I saw an email last
> week but too late to check in.
>
> 73 de Chuck, WS1L
> --
> Chuck
>
> Sent from my iPhone
>
> Chuck Chandler
> chandler...@gmail.com
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Re: [Elecraft] RF in Microphone

[Alan. G4GNX]

Thanks Bill.

That tends to suggest that my setting of 11 is not too far off.

73,

Alan. G4GNX

-Original Message- 
From: Bill Frantz 
Sent: Sunday, March 26, 2017 8:32 PM 
To: Alan. G4GNX 
Cc: elecraft@mailman.qth.net 
Subject: Re: [Elecraft] RF in Microphone 

I use MIC = 8 or 9 and CMP=20. I found in the CQ WPX SSB contest 
this weekend that raising the CMP to 25 increased the number of 
times I was able to get through in the pileups.


73 Bill AE6JV

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Re: [Elecraft] RF in Microphone

[Bill Frantz]

I use MIC = 8 or 9 and CMP=20. I found in the CQ WPX SSB contest 
this weekend that raising the CMP to 25 increased the number of 
times I was able to get through in the pileups.


73 Bill AE6JV

On 3/26/17 at 12:08 PM, g4...@theatreorgans.co.uk (Alan. G4GNX) wrote:


What Mic Gain and Compression settings do you use with the CM500 headset?

A friend said that he uses MIC=40 and CMP=20, but Howard at Elecraft thinks 
that's far too high.
I found that I can get the correct ALC response using Mic=11 and CMP=20.

---
Bill Frantz| Re: Computer reliability, performance, and security:
408-356-8506   | The guy who *is* wearing a parachute is 
*not* the

www.pwpconsult.com | first to reach the ground.  - Terence Kelly

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[Elecraft] Elecraft SSB net

[Chuck Chandler]

Is there an SSB net on some Sunday's but not others? I saw an email last
week but too late to check in.

73 de Chuck, WS1L
-- 
Chuck

Sent from my iPhone

Chuck Chandler
chandler...@gmail.com
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Re: [Elecraft] RF in Microphone

[Alan. G4GNX]

Jim.

What Mic Gain and Compression settings do you use with the CM500 headset?

A friend said that he uses MIC=40 and CMP=20, but Howard at Elecraft thinks 
that's far too high.

I found that I can get the correct ALC response using Mic=11 and CMP=20.

73,

Alan. G4GNX

-Original Message- 
From: Jim Brown

Sent: Sunday, March 26, 2017 6:47 PM
To: Reflector Elecraft
Subject: Re: [Elecraft] RF in Microphone

...The Yamaha CM500 is widely used by K3 owners. 
I've used one since a

local ham introduced our contesting club to it seven or eight years ago.
Both mic and headphones sound very good and it's quite comfortable. It
plugs straight into the jacks on the rear panel. It's an electret, so
you'll need to turn on  bias.

73, Jim K9YC

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[Elecraft] FS: Billet Bronze Chrome K3/K3S A/B VFO Knobs / Pictures

[M. George]

I have been cleaning up my shack and I have a 'like new' set of Chrome
replacement knobs

for a K3 or K3S.  They are really nice, and I know a lot of operators
really like thess heaver knobs on their K3/S.

It appears that the seller in Bulgaria is no longer selling these.  I can't
find them anymore via google.
They just didn't fit the way I like to tune the K3, after I used them for a
little while.  So they are up for sell if someone is interested.  I think I
paid around $140? and it was a special order to get the VFO B knob inset
with the black color to match the VFO A knob.  I would let them go for $90
(paypal preferred) shipped to the 'CONUS' / to your door or make me a
reasonable offer.  They are getting lonely inside the original box from
Bulgaria. ;)

Max NG7M

Direct link to the pictures... these are pictures I took of the actual
knobs you would be buying.

http://www.nc7j.com/pa/main.php?cmd=album&var1=NG7M%2FElecraft%2FBronze+VFO+Knobs/

P.S. please don't start / resurrect a new/old thread on if heavy knobs are
good / okay or otherwise bad for the K3 encoders.  That's the last thing we
all want to see 'ad nauseum' blah, blah, blah.. (sigh...).



-- 
M. George
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Re: [Elecraft] RF in Microphone

[Joe Subich, W4TV]

Heil's quality control *sucks*.  Their cables are notorious for
reversing mic return and chassis ground (shield/PTT return) and/or
connecting the mic return to the shell of the Foster plug instead
of the mic return pin.

Use an ohm meter and make sure that pin 1 of the XLR (shield/shell)
is connected to the *shell* of the Foster plug and pin 3 of the XLR
(mic return) is connected *only* to pin 7 of the Foster plug.

Connecting pin 7 of the Foster plug to the shell (particularly at
the XLR end of the cable) is a sure fire way to make any RFI problem
in your shack/installation exponentially worse.

73,

   ... Joe, W4TV


On 3/26/2017 12:31 PM, Jim Kutsch wrote:

I am a new K3S owner and very pleased. However, on SSB, I am getting reports
that my audio is distorted sounding like RF is getting into the microphone.
I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I
had some RF microphone issues earlier using the PR-781 with a KX3 but a
better shielded mic cable and a common mode choke resolved it. Any
suggestions before I go in search of a different mic? Also, any
recommendations for a boom mount microphone that would be a better choice
for the K3S than this PR-781?



Thanks and 73, Jim, KY2D





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Re: [Elecraft] RF in Microphone

[Jim Brown]

On Sun,3/26/2017 9:31 AM, Jim Kutsch wrote:

I am getting reports
that my audio is distorted sounding like RF is getting into the microphone.


In writing my previous response, I forgot to mention this mechanism, 
which can cause exactly what you are experiencing, and which has nothing 
to do with RFI. This is only an issue when audio is being fed to the rig 
via some audio accessory that runs on DC from the some power supply as 
the rig.


http://k9yc.com/PowerSupplyBondingAndAudioDistortion.pdf

73, Jim K9YC


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Re: [Elecraft] RF in Microphone

[Jim Brown]

Hi Jim,

RF feedback is most often caused by improper termination of a cable 
shield. The only good termination of a cable shield is to the shielding 
enclosure (that is, the chassis). I know nothing about Heil mics, so 
can't offer advice about their adapter. I would take this issue up with 
Heil.


But don't assume that RF is the only possibility. The mic gain and/or 
the compression may be turned up too high, both of which can make you 
sound pretty awful. And the adapter may be mis-wired -- every brand of 
JA radios uses a different pin-out for their mic connectors. Elecraft 
uses a pinout that's close to one of them (or may be the same). So 
connector wired for one radio is usually not right for another. Some 
people complain about "different standards," but this is an example of 
there being NO standard, and each manufacturer throwing his own darts at 
the board.


If it is a wiring issue, all you need to fix your problem is a few hand 
tools and a soldering iron to open up the connectors and rewire them 
according to the manuals for the respective components (the mic and the 
radio).


The Yamaha CM500 is widely used by K3 owners. I've used one since a 
local ham introduced our contesting club to it seven or eight years ago. 
Both mic and headphones sound very good and it's quite comfortable. It 
plugs straight into the jacks on the rear panel. It's an electret, so 
you'll need to turn on  bias.


73, Jim K9YC

73, Jim K9YC

On Sun,3/26/2017 9:31 AM, Jim Kutsch wrote:

I am a new K3S owner and very pleased. However, on SSB, I am getting reports
that my audio is distorted sounding like RF is getting into the microphone.
I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I
had some RF microphone issues earlier using the PR-781 with a KX3 but a
better shielded mic cable and a common mode choke resolved it. Any
suggestions before I go in search of a different mic? Also, any
recommendations for a boom mount microphone that would be a better choice
for the K3S than this PR-781?

  


Thanks and 73, Jim, KY2D

  

  


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Re: [Elecraft] RF in Microphone

[Nr4c]

What voltage does the K3S display while transmitting SSB?  

Sent from my iPhone
...nr4c. bill


> On Mar 26, 2017, at 12:31 PM, Jim Kutsch  wrote:
> 
> I am a new K3S owner and very pleased. However, on SSB, I am getting reports
> that my audio is distorted sounding like RF is getting into the microphone.
> I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I
> had some RF microphone issues earlier using the PR-781 with a KX3 but a
> better shielded mic cable and a common mode choke resolved it. Any
> suggestions before I go in search of a different mic? Also, any
> recommendations for a boom mount microphone that would be a better choice
> for the K3S than this PR-781?
> 
> 
> 
> Thanks and 73, Jim, KY2D
> 
> 
> 
> 
> 
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Re: [Elecraft] K3 error message

[Don Wilhelm]

Mike,

ERR PTT normally says a key, PTT, or some similar source is closed.
This error normally occurs only at power on time.
Take a look at how JT65 is set up to key the K3.
I can only guess but I think that may happen if you have VOX turned on 
and JT65 is activating the RTS or DTR lines on the RS-232 interface, or 
is also activating PTT from another source.


In other words, make sure JT65 is activating keying of the K3 with one 
source (or VOX, so the audio tones initiate transmit).


If it continues, you should email K3support.

73,
Don W3FPR


On 3/26/2017 12:33 PM, Mike Weir wrote:

Good afternoon group, today I have been trying to operate JT65 using my K3 in DATA A mode along 
with WSJT-X program. When I activate "TUNE" in the WSJT-X the K3 gives me an error 
message "ERR PTT" and the K3 goes back to receive.  I have never had this issue in the 
past and have not added any new gear or changed settings. It's not doing it all the time. If I put 
the rig into tune via the WSJT program once every 3rd try the K3 will produce this error message. 
NOTE: if I put the K3 into tune via the tune button on the rig there is no issue.


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Re: [Elecraft] RF in Microphone

[Michael Walker]

Also,

Have a read on the YCCC's notes on chokes.

http://www.yccc.org/Articles/W1HIS/CommonModeChokesW1HIS2006Apr06.pdf

Not only will it help with RF issues on transmit, it will help all all the
noise in your shack and allow you to hear better.

I bought a case of Mix 43 chokes, and I've used them all.  Worth every
penny.

Mike va3mw



On Sun, Mar 26, 2017 at 12:50 PM, Don Wilhelm 
wrote:

> Jim,
>
> I would suggest that you first try to reduce the RF coming into the
> shack.  Do a little work on your antennas - better baluns for instance, and
> make sure all antenna connections are tight.  Refer to Jim Brown K9YC's
> paper at http://audiosystemsgroup.com/RFI-Ham.pdf for assistance.
>
> 73,
> Don W3FPR
>
> On 3/26/2017 12:31 PM, Jim Kutsch wrote:
>
>> I am a new K3S owner and very pleased. However, on SSB, I am getting
>> reports
>> that my audio is distorted sounding like RF is getting into the
>> microphone.
>> I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I
>> had some RF microphone issues earlier using the PR-781 with a KX3 but a
>> better shielded mic cable and a common mode choke resolved it. Any
>> suggestions before I go in search of a different mic? Also, any
>> recommendations for a boom mount microphone that would be a better choice
>> for the K3S than this PR-781?
>>
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Re: [Elecraft] RF in Microphone

[Don Wilhelm]

Jim,

I would suggest that you first try to reduce the RF coming into the 
shack.  Do a little work on your antennas - better baluns for instance, 
and make sure all antenna connections are tight.  Refer to Jim Brown 
K9YC's paper at http://audiosystemsgroup.com/RFI-Ham.pdf for assistance.


73,
Don W3FPR

On 3/26/2017 12:31 PM, Jim Kutsch wrote:

I am a new K3S owner and very pleased. However, on SSB, I am getting reports
that my audio is distorted sounding like RF is getting into the microphone.
I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I
had some RF microphone issues earlier using the PR-781 with a KX3 but a
better shielded mic cable and a common mode choke resolved it. Any
suggestions before I go in search of a different mic? Also, any
recommendations for a boom mount microphone that would be a better choice
for the K3S than this PR-781?

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Re: [Elecraft] RF in Microphone

[jermo]

What is your antenna setup and all connections between your k3s and the antenna?

Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone

 Original message 
From: Jim Kutsch  
Date: 3/26/17  12:31  (GMT-05:00) 
To: Elecraft@mailman.qth.net 
Subject: [Elecraft] RF in Microphone 

I am a new K3S owner and very pleased. However, on SSB, I am getting reports
that my audio is distorted sounding like RF is getting into the microphone.
I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I
had some RF microphone issues earlier using the PR-781 with a KX3 but a
better shielded mic cable and a common mode choke resolved it. Any
suggestions before I go in search of a different mic? Also, any
recommendations for a boom mount microphone that would be a better choice
for the K3S than this PR-781?

 

Thanks and 73, Jim, KY2D

 

 

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[Elecraft] K3 error message

[Mike Weir]

Good afternoon group, today I have been trying to operate JT65 using my K3 in 
DATA A mode along with WSJT-X program. When I activate "TUNE" in the WSJT-X the 
K3 gives me an error message "ERR PTT" and the K3 goes back to receive.  I have 
never had this issue in the past and have not added any new gear or changed 
settings. It's not doing it all the time. If I put the rig into tune via the 
WSJT program once every 3rd try the K3 will produce this error message. NOTE: 
if I put the K3 into tune via the tune button on the rig there is no issue.

Thanks in advance

Mike

VE3WDM
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[Elecraft] RF in Microphone

[Jim Kutsch]

I am a new K3S owner and very pleased. However, on SSB, I am getting reports
that my audio is distorted sounding like RF is getting into the microphone.
I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I
had some RF microphone issues earlier using the PR-781 with a KX3 but a
better shielded mic cable and a common mode choke resolved it. Any
suggestions before I go in search of a different mic? Also, any
recommendations for a boom mount microphone that would be a better choice
for the K3S than this PR-781?

 

Thanks and 73, Jim, KY2D

 

 

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Re: [Elecraft] K2 main encoder wanted

[Harry Yingst via Elecraft]

I would suggest Break-Free CLP, It works great and has a lot of uses.

It works quite well and last a long time.




  From: David Woolley 
 To: elecraft@mailman.qth.net 
 Sent: Sunday, March 26, 2017 5:37 AM
 Subject: Re: [Elecraft] K2 main encoder wanted
   
WD40 is a preservative, not a lubricant.  It will act as a penetrating 
oil, to free seized parts, but for a longer term solution you want to 
look at sewing machine or hair clipper oil.

On 25/03/17 20:57, Bob G3PJT wrote:
>
> I have managed to get the encoder turning reasonable freely. I put a
> very small amout of WD40 on the shaft where it enters the housing bush.
>

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Re: [Elecraft] K2/100 Power on no RX or PA?

[Don Wilhelm]

Gene,

Intermittent problems are usually caused by a bad connection somewhere.
If it is in a connector, usually removing the connector and replacing it 
will wipe away any oxidation interfering with proper contact.


In this case it appears that the MCU is not sensing the KPA100.

I would suggest that you first re-seat the KPA100 ribbon cable (both 
ends) and the KPA100 firmware IC.


If that does not correct it, re-seat the MCU - Control Board U6.

While you have the shield off the KPA100, check the diodes D16 and D17 
to see if they test as good diodes.  They normally show very high 
reverse resistance and near 430 ohms forward resistance.
An alternate quick check on the health of the diodes is to measure the 
resistance to ground from pin 3 and pin 5 of KPA100 U5.  If normal it 
will be about 43k.


73,
Don W3FPR


On 3/26/2017 9:47 AM, Gene N4FZ wrote:

This has been an intermittent problem. When the rig sits for a week or so,
Upon powering ON, the RX is muted, the menu setting shows PA _ _ _, and it
will not transmit but shows a HI REFL message. I have it connected to both a
dummy load and a known good HF antenna. In the MENU, I can not adjust the PA
to come ON again. Powering the rig ON/OFF 5 or more times will solve the
issue. What could be causing this? Thanks Gene

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[Elecraft] K2/100 Power on no RX or PA?

[Gene N4FZ]

This has been an intermittent problem. When the rig sits for a week or so,
Upon powering ON, the RX is muted, the menu setting shows PA _ _ _, and it
will not transmit but shows a HI REFL message. I have it connected to both a
dummy load and a known good HF antenna. In the MENU, I can not adjust the PA
to come ON again. Powering the rig ON/OFF 5 or more times will solve the
issue. What could be causing this? Thanks Gene



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Re: [Elecraft] Reflector problems

[Don Wilhelm]

Ron,

It looks like you are "back on the list" already.

73,
Don W3FPR

On 3/26/2017 7:57 AM, ron cowherd via Elecraft wrote:

I have not been receiving the Reflector in recent months and decided that maybe 
I missed something that was required to stay subscribed.  I don’t remember or 
can’t find the password from my original subscription and therefore 
re-subscribed.

Please help me get back on the list.

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[Elecraft] Reflector problems

[ron cowherd via Elecraft]

I have not been receiving the Reflector in recent months and decided that maybe 
I missed something that was required to stay subscribed.  I don’t remember or 
can’t find the password from my original subscription and therefore 
re-subscribed.  

Please help me get back on the list.

Thanks
Phillip R. Cowherd (Ron) K4GYD
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Re: [Elecraft] K2 main encoder wanted

[Chip Stratton]

WD-40 is a penetrating and moisture displacing oil, but over time gets
gummy so is not a reliable long-term lubricant.

Chip
AE5KA

On Sun, Mar 26, 2017 at 5:34 AM, David Woolley 
wrote:

> WD40 is a preservative, not a lubricant.  It will act as a penetrating
> oil, to free seized parts, but for a longer term solution you want to look
> at sewing machine or hair clipper oil.
>
> On 25/03/17 20:57, Bob G3PJT wrote:
>
>>
>> I have managed to get the encoder turning reasonable freely. I put a
>> very small amout of WD40 on the shaft where it enters the housing bush.
>>
>>
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Re: [Elecraft] K2 main encoder wanted

[David Woolley]

WD40 is a preservative, not a lubricant.  It will act as a penetrating 
oil, to free seized parts, but for a longer term solution you want to 
look at sewing machine or hair clipper oil.


On 25/03/17 20:57, Bob G3PJT wrote:


I have managed to get the encoder turning reasonable freely. I put a
very small amout of WD40 on the shaft where it enters the housing bush.



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