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K3 transmit audio cuts out

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Keith Heimbold

Re: K3 transmit audio cuts out

Don,

I am pretty sure that we found the culprit. The APP connectors did not click properly for the one set and I am examining the ones for the other. I will need to be more diligent in making sure I get a good click inserting into the plastic housing.

I spent a lot of time rooting out any RFI issues but I guess that is really time well spent since cleaning up my shack and all the cables and wires is probably a good idea.

Thanks,

Keith
AG6AZ

Sent from my iPhone please excuse typos

On Jul 29, 2012, at 6:34 AM, "Don Wilhelm" <[hidden email]> wrote:

> Keith,
>
> If your APP connectors do not mate with a bit of a *click*, then they are assembled incorrectly. The blades of the conductors *must* be locked over the tips of the spring fingers located in the housing.
>
> Things come in threes so the sayings go, I have repaired 2 KPA100s in the last week which did not have the blades of the APP connector fully seated - I am waiting on the 3rd one.
>
> 73,
> Don W3FPR
>
> On 7/28/2012 11:10 PM, Keith Heimbold wrote:
>> Don,
>>
>> I am now starting to think that it is an issue with my power connectors that I am using.
>>
>> I bought some additional ferrites and put the balun design 1113u in line to take care of RFI but i know believe that the power connectors are a little intermittent at times. I don't always get a solid click when inserting into the back of the K3 or into the power supply line. I like the convenience of those type of connectors but they do seem to loosen up over time.
>>
>> Thanks again,
>>
>> Keith
>> AG6AZ
>>
>> Sent from my iPhone please excuse typos
>>
>> On Jul 28, 2012, at 3:44 PM, "Don Wilhelm" <[hidden email]> wrote:
>>
>>> Keith,
>>>
>>> You could also have a loose connection in your microphone cable. When operating SSB, if there is no audio, there will be no RF output.
>>> So you can look at the PTT, the audio, the power supply, and just about every thing else in your station. Cables are usually the weak link.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>> On 7/28/2012 5:34 PM, Keith Heimbold wrote:
>>>> Gene,
>>>>
>>>> Great suggestion. It maybe the connector going into the rig or the connectors which I built.
>>>>
>>>> Thanks,
>>>>
>>>> Keith
>>>> AG6AZ
>>>>
>>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>

Rick Stealey

CY9 cw note

Anyone notice the CY9M cw note sounds choppy, or is it just me?
On 10.116 as I write this at 14:50 Z.

Rick K2XT

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W4CCS

Re: CY9 cw note

Sounds clear and clean on K3 # 2090 in South Georgia

W4CCS

On 7/29/2012 10:51 AM, Rick Stealey wrote:

> Anyone notice the CY9M cw note sounds choppy, or is it just me?
> On 10.116 as I write this at 14:50 Z.
>
> Rick K2XT
>
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stan levandowski

Re: CY9 cw note

In reply to this post by Rick Stealey

I just worked CY9M on 10.116 at 14.59 and they sounded just fine to me
and my KX3 at 5 watts.

73, Stan WB2LQF

On Sun, Jul 29, 2012 at 10:51 AM, Rick Stealey wrote:

Ken Wagner K3IU

Re: CY9 cw note

In reply to this post by Rick Stealey

Just worked him at 1512Z. Note sounds fine to me.
73,
Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
On 7/29/2012 10:51 AM, Rick Stealey wrote:

Paul VanOveren-2

Re: CY9 cw note

In reply to this post by W4CCS

Sounds ok here in Michigan.
Paul NF8J

-----Original Message-----
From: W4CCS
Sent: Sunday, July 29, 2012 10:55 AM
To: [hidden email]
Subject: Re: [Elecraft] CY9 cw note

Sounds clear and clean on K3 # 2090 in South Georgia

W4CCS

On 7/29/2012 10:51 AM, Rick Stealey wrote:

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dmb@lightstream.net

Re: CY9 cw note

In reply to this post by Rick Stealey

Yep; I noticed it on 14.027 (or so). The first 'dit' was significantly
clipped, and the rest were sort of okay. Sounds like he's using a badly
adjusted or defective bug. The tone was fine; just the keying of the
tone that wasn't what it should have been.

Dale
WA8SRA

On 7/29/2012 10:51 AM, Rick Stealey wrote:

Rick Stealey

Re: CY9 cw note THREAD CLOSED

In reply to this post by Paul VanOveren-2

Ok thanks guys. Must just be my ears.
To me it sounded like a rig on QSK with relays that were too slow.

No need to prolong this. 73
THREAD CLOSED

> Sounds ok here in Michigan.
> Paul NF8J
>
>

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Eugene Balinski

Re: K3 transmit audio cuts out

In reply to this post by Keith Heimbold

APP connectors can be a real pain if not done absolutely
correctly. I ended up purchasing a ratcheting crimper
from HRO as I could never get just the right force on the
manual one. It was either too weak and the wire would fall
out when tugged, or I would mash it too hard, and the
contact would not fit in to the plastic housing. The
ratcheting crimper is first time, every time, at least for
now

73

K1NR

On Sun, 29 Jul 2012 06:54:23 -0700
Keith Heimbold <[hidden email]> wrote:

> Don,
>
> I am pretty sure that we found the culprit. The APP
> connectors did not click properly for the one set and I
> am examining the ones for the other. I will need to be
> more diligent in making sure I get a good click inserting
> into the plastic housing.
>
> I spent a lot of time rooting out any RFI issues but I
> guess that is really time well spent since cleaning up my
> shack and all the cables and wires is probably a good
> idea.
>
> Thanks,
>
> Keith
> AG6AZ
>
> Sent from my iPhone please excuse typos
>
> On Jul 29, 2012, at 6:34 AM, "Don Wilhelm"
> <[hidden email]> wrote:
>
> > Keith,
> >
> > If your APP connectors do not mate with a bit of a
> *click*, then they are assembled incorrectly. The blades
> of the conductors *must* be locked over the tips of the
> spring fingers located in the housing.
> >
> > Things come in threes so the sayings go, I have
> repaired 2 KPA100s in the last week which did not have
> the blades of the APP connector fully seated - I am
> waiting on the 3rd one.
> >
> > 73,
> > Don W3FPR
> >
> > On 7/28/2012 11:10 PM, Keith Heimbold wrote:
> >> Don,
> >>
> >> I am now starting to think that it is an issue with my
> power connectors that I am using.
> >>
> >> I bought some additional ferrites and put the balun
> design 1113u in line to take care of RFI but i know
> believe that the power connectors are a little
> intermittent at times. I don't always get a solid click
> when inserting into the back of the K3 or into the power
> supply line. I like the convenience of those type of
> connectors but they do seem to loosen up over time.
> >>
> >> Thanks again,
> >>
> >> Keith
> >> AG6AZ
> >>
> >> Sent from my iPhone please excuse typos
> >>
> >> On Jul 28, 2012, at 3:44 PM, "Don Wilhelm"
> <[hidden email]> wrote:
> >>
> >>> Keith,
> >>>
> >>> You could also have a loose connection in your
> microphone cable. When operating SSB, if there is no
> audio, there will be no RF output.
> >>> So you can look at the PTT, the audio, the power
> supply, and just about every thing else in your station.
> Cables are usually the weak link.
> >>>
> >>> 73,
> >>> Don W3FPR
> >>>
> >>> On 7/28/2012 5:34 PM, Keith Heimbold wrote:
> >>>> Gene,
> >>>>
> >>>> Great suggestion. It maybe the connector going into
> the rig or the connectors which I built.
> >>>>
> >>>> Thanks,
> >>>>
> >>>> Keith
> >>>> AG6AZ
> >>>>
> >>>>
> >>
>

______________________________________________________________

> >> Elecraft mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> >> Help: http://mailman.qth.net/mmfaq.htm
> >> Post: mailto:[hidden email]
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list:
> http://www.qsl.net/donate.html
> >>
> >
>

______________________________________________________________
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Keith Heimbold

Re: K3 transmit audio cuts out

I have a crimper and will redo them today. Right after I put a phase
inverter on my 6m stack. So many projects, so little time.

Need to get these things done before the baby comes. he is due in on
Tuesday.

Thanks,

Keith
AG6AZ

-----Original Message-----
From: Eugene Balinski
Sent: Sunday, July 29, 2012 9:34 AM
To: Keith Heimbold ; [hidden email]
Cc: [hidden email]
Subject: Re: [Elecraft] K3 transmit audio cuts out

APP connectors can be a real pain if not done absolutely
correctly. I ended up purchasing a ratcheting crimper
from HRO as I could never get just the right force on the
manual one. It was either too weak and the wire would fall
out when tugged, or I would mash it too hard, and the
contact would not fit in to the plastic housing. The
ratcheting crimper is first time, every time, at least for
now

73

K1NR

On Sun, 29 Jul 2012 06:54:23 -0700
Keith Heimbold <[hidden email]> wrote:

______________________________________________________________

______________________________________________________________
> Elecraft mailing list
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> Help: http://mailman.qth.net/mmfaq.htm
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>
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> http://www.qsl.net/donate.html

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Eugene Balinski

Re: K3 transmit audio cuts out

GL all around !

73
K1NR

On Sun, 29 Jul 2012 09:50:36 -0700
"Ham Radio " <[hidden email]> wrote:

> I have a crimper and will redo them today. Right after I
> put a phase inverter on my 6m stack. So many projects,
> so little time.
>
> Need to get these things done before the baby comes. he
> is due in on Tuesday.
>
> Thanks,
>
> Keith
> AG6AZ
>
> -----Original Message----- From: Eugene Balinski
> Sent: Sunday, July 29, 2012 9:34 AM
> To: Keith Heimbold ; [hidden email]
> Cc: [hidden email]
> Subject: Re: [Elecraft] K3 transmit audio cuts out
>
> APP connectors can be a real pain if not done absolutely
> correctly. I ended up purchasing a ratcheting crimper
> from HRO as I could never get just the right force on the
> manual one. It was either too weak and the wire would
> fall
> out when tugged, or I would mash it too hard, and the
> contact would not fit in to the plastic housing. The
> ratcheting crimper is first time, every time, at least
> for
> now
>
> 73
>
> K1NR
>
>
> On Sun, 29 Jul 2012 06:54:23 -0700
> Keith Heimbold <[hidden email]> wrote:
> > Don,
> >
> > I am pretty sure that we found the culprit. The APP
> > connectors did not click properly for the one set and I
> > am examining the ones for the other. I will need to be
> > more diligent in making sure I get a good click
> inserting
> > into the plastic housing.
> >
> > I spent a lot of time rooting out any RFI issues but I
> > guess that is really time well spent since cleaning up
> my
> > shack and all the cables and wires is probably a good
> > idea.
> >
> > Thanks,
> >
> > Keith
> > AG6AZ
> >
> > Sent from my iPhone please excuse typos
> >
> > On Jul 29, 2012, at 6:34 AM, "Don Wilhelm"
> > <[hidden email]> wrote:
> >
> > > Keith,
> > >
> > > If your APP connectors do not mate with a bit of a
> > *click*, then they are assembled incorrectly. The
> blades
> > of the conductors *must* be locked over the tips of the
> > spring fingers located in the housing.
> > >
> > > Things come in threes so the sayings go, I have
> > repaired 2 KPA100s in the last week which did not have
> > the blades of the APP connector fully seated - I am
> > waiting on the 3rd one.
> > >
> > > 73,
> > > Don W3FPR
> > >
> > > On 7/28/2012 11:10 PM, Keith Heimbold wrote:
> > >> Don,
> > >>
> > >> I am now starting to think that it is an issue with
> my
> > power connectors that I am using.
> > >>
> > >> I bought some additional ferrites and put the balun
> > design 1113u in line to take care of RFI but i know
> > believe that the power connectors are a little
> > intermittent at times. I don't always get a solid click
> > when inserting into the back of the K3 or into the
> power
> > supply line. I like the convenience of those type of
> > connectors but they do seem to loosen up over time.
> > >>
> > >> Thanks again,
> > >>
> > >> Keith
> > >> AG6AZ
> > >>
> > >> Sent from my iPhone please excuse typos
> > >>
> > >> On Jul 28, 2012, at 3:44 PM, "Don Wilhelm"
> > <[hidden email]> wrote:
> > >>
> > >>> Keith,
> > >>>
> > >>> You could also have a loose connection in your
> > microphone cable. When operating SSB, if there is no
> > audio, there will be no RF output.
> > >>> So you can look at the PTT, the audio, the power
> > supply, and just about every thing else in your
> station.
> > Cables are usually the weak link.
> > >>>
> > >>> 73,
> > >>> Don W3FPR
> > >>>
> > >>> On 7/28/2012 5:34 PM, Keith Heimbold wrote:
> > >>>> Gene,
> > >>>>
> > >>>> Great suggestion. It maybe the connector going
> into
> > the rig or the connectors which I built.
> > >>>>
> > >>>> Thanks,
> > >>>>
> > >>>> Keith
> > >>>> AG6AZ
> > >>>>
> > >>>>
> > >>
> >
>

______________________________________________________________

> > >> Elecraft mailing list
> > >> Home:
> http://mailman.qth.net/mailman/listinfo/elecraft
> > >> Help: http://mailman.qth.net/mmfaq.htm
> > >> Post: mailto:[hidden email]
> > >>
> > >> This list hosted by: http://www.qsl.net
> > >> Please help support this email list:
> > http://www.qsl.net/donate.html
> > >>
> > >
> >
>

______________________________________________________________

> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
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> > Please help support this email list:
> > http://www.qsl.net/donate.html
>
>

---------------------------------------------------------------------
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> provider.
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Val-12

Re: CY9 cw note

In reply to this post by Rick Stealey

May be you are right Rick. The amplifiers there are not QSK capable and the
transceivers should be adjusted accordingly.

73, Val LZ1VB

>
> Ok thanks guys. Must just be my ears.
> To me it sounded like a rig on QSK with relays that were too slow.
>

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vk4tux

K3 transmit audio cuts out

In reply to this post by Keith Heimbold

Keith, Did you ever look at the vfo B voltage display whilst transmitting to
check volt drop?

I would have thought the transceiver would turn itself off before the
transmitted audio ceased if you had a volt drop problem. The radio tends to
give you current warnings during these events as it tries to meet the power
level programmed.

Using a short custom APP cable rated for 50 amps and 30 amp power supply
close at 15v is well worthwhile.
I run a 15v 30A sw/mode on the P3 (Can't get much closer than that), with
a secondary supply from a 7 cell LA battery bank with its own 15v 25A
linear PS.

Dons advice regarding the app connectors is great, but not sure if that was
your issue.
The fact that you cleaned up the rfi area with no re-occurrence of the
issue says a lot.

Adrian ... vk4tux

Nb, list owners, 2nd attempt on this post, on previous I received;

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-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Keith Heimbold
Sent: Sunday, 29 July 2012 11:54 PM
To: [hidden email]
Cc: [hidden email]
Subject: Re: [Elecraft] K3 transmit audio cuts out

Don,

I am pretty sure that we found the culprit. The APP connectors did not click
properly for the one set and I am examining the ones for the other. I will
need to be more diligent in making sure I get a good click inserting into
the plastic housing.

I spent a lot of time rooting out any RFI issues but I guess that is really
time well spent since cleaning up my shack and all the cables and wires is
probably a good idea.

Thanks,

Keith
AG6AZ

Sent from my iPhone please excuse typos

On Jul 29, 2012, at 6:34 AM, "Don Wilhelm" <[hidden email]> wrote:

> Keith,
>
> If your APP connectors do not mate with a bit of a *click*, then they
> are
assembled incorrectly. The blades of the conductors *must* be locked over
the tips of the spring fingers located in the housing.
>
> Things come in threes so the sayings go, I have repaired 2 KPA100s in
> the
last week which did not have the blades of the APP connector fully seated -
I am waiting on the 3rd one.
>
> 73,
> Don W3FPR
>
> On 7/28/2012 11:10 PM, Keith Heimbold wrote:
>> Don,
>>
>> I am now starting to think that it is an issue with my power
>> connectors
that I am using.
>>
>> I bought some additional ferrites and put the balun design 1113u in
>> line
to take care of RFI but i know believe that the power connectors are a
little intermittent at times. I don't always get a solid click when
inserting into the back of the K3 or into the power supply line. I like the
convenience of those type of connectors but they do seem to loosen up over
time.

>>
>> Thanks again,
>>
>> Keith
>> AG6AZ
>>
>> Sent from my iPhone please excuse typos
>>
>> On Jul 28, 2012, at 3:44 PM, "Don Wilhelm" <[hidden email]> wrote:
>>
>>> Keith,
>>>
>>> You could also have a loose connection in your microphone cable.
>>> When

operating SSB, if there is no audio, there will be no RF output.
>>> So you can look at the PTT, the audio, the power supply, and just
>>> about
every thing else in your station. Cables are usually the weak link.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>> On 7/28/2012 5:34 PM, Keith Heimbold wrote:
>>>> Gene,
>>>>
>>>> Great suggestion. It maybe the connector going into the rig or the
connectors which I built.

>>>>
>>>> Thanks,
>>>>
>>>> Keith
>>>> AG6AZ
>>>>
>>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net Please help support this
>> email list: http://www.qsl.net/donate.html
>>
>

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Don Wilhelm-4

Re: K3 transmit audio cuts out

In reply to this post by Keith Heimbold

Kieth,

Actually APP connectors do not "loosen up over time". They provide
positive contact over many, many, many connections/disconnections. If
the plating on the connector blades is still intact, that is not your
problem.

However, many seem to have trouble assembling APP connectors correctly.
I am currently sensitized to this problem because I have repaired 2
KPA100s in the past week which had this exact problem - the blades of
the connectors were not securely latched over the spring fingers of the
housing.
If your APP connector is loose and the cable "falls out", you can be
certain that it is not assembled correctly. The blades of the contacts
must latch over the ends of the spring fingers in the housings.

See page 37, figure 29 in the XV transverter Assembly manual -
http://www.elecraft.com/manual/Assembly%20Manual%20XV50,144,%20222%20Rev%20D.pdf

73,
Don W3FPR

On 7/28/2012 11:10 PM, Keith Heimbold wrote:

> Don,
>
> I am now starting to think that it is an issue with my power connectors that I am using.
>
> I bought some additional ferrites and put the balun design 1113u in line to take care of RFI but i know believe that the power connectors are a little intermittent at times. I don't always get a solid click when inserting into the back of the K3 or into the power supply line. I like the convenience of those type of connectors but they do seem to loosen up over time.
>
> Thanks again,
>
> Keith
> AG6AZ
>
> Sent from my iPhone please excuse typos
>
> On Jul 28, 2012, at 3:44 PM, "Don Wilhelm" <[hidden email]> wrote:
>
>> Keith,
>>
>> You could also have a loose connection in your microphone cable. When operating SSB, if there is no audio, there will be no RF output.
>> So you can look at the PTT, the audio, the power supply, and just about every thing else in your station. Cables are usually the weak link.
>>
>> 73,
>> Don W3FPR
>>
>> On 7/28/2012 5:34 PM, Keith Heimbold wrote:
>>> Gene,
>>>
>>> Great suggestion. It maybe the connector going into the rig or the connectors which I built.
>>>
>>> Thanks,
>>>
>>> Keith
>>> AG6AZ
>>>
>>>
> ______________________________________________________________
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