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K3 PA3 not working

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Grant Bright W5XB

K3 PA3 not working

Hello All,

Just received a new to me K3. Love all the features and ease of operation!

Checking it out this afternoon, transmitting into a good swr, at 12 watts or
less, the output shows 12 watts and 1.2 SWR

Turned up to 100 watts, the output shows 1 watt and no swr. Power supply
voltage and current no issue.

Question: Does the 10 watt output and the PA3 share the same circuit for
return power (SWR) or are they different?

All help appreciated.

Please email to [hidden email]

Many thanks, Grant, W5XB

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Don Wilhelm

Re: K3 PA3 not working

Grant,

Yes, the K3 uses the same power and SWR sensing for less than 12 watts
and greater than 12 watts.

It sounds like you have a non-functioning KPA3.
You might want to check with an external wattmeter to be certain.

73,
Don W3FPR

On 9/22/2018 6:05 PM, Grant Bright W5XB wrote:

> Hello All,
>
> Just received a new to me K3. Love all the features and ease of operation!
>
> Checking it out this afternoon, transmitting into a good swr, at 12 watts or
> less, the output shows 12 watts and 1.2 SWR
>
> Turned up to 100 watts, the output shows 1 watt and no swr. Power supply
> voltage and current no issue.
>
> Question: Does the 10 watt output and the PA3 share the same circuit for
> return power (SWR) or are they different?

______________________________________________________________
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
Message delivered to [hidden email]

Grant Bright W5XB

Re: K3 PA3 not working

Many thanks Don,

Good to know...the tx does ok at 12 watts, but when you turn the power up
(hear the click), the power drops off to zero, and the swr disappear.

I have a good Collins wattmeter, that shows the 12 watts fine...but I do
have a dummy load. I'll have one tomorrow and try doing a calibration with
the utility.

If it is the KPA3, I hope I can pull it and send just it to Elecraft. I'll
call Monday about that.

Many thanks for your help.

73, Grant, W5XB

-----Original Message-----
From: Don Wilhelm [mailto:[hidden email]]
Sent: Saturday, September 22, 2018 6:37 PM
To: Grant Bright W5XB; [hidden email]
Subject: Re: [Elecraft] K3 PA3 not working

Grant,

Yes, the K3 uses the same power and SWR sensing for less than 12 watts
and greater than 12 watts.

It sounds like you have a non-functioning KPA3.
You might want to check with an external wattmeter to be certain.

73,
Don W3FPR

On 9/22/2018 6:05 PM, Grant Bright W5XB wrote:
> Hello All,
>
> Just received a new to me K3. Love all the features and ease of operation!
>
> Checking it out this afternoon, transmitting into a good swr, at 12 watts
or
> less, the output shows 12 watts and 1.2 SWR
>
> Turned up to 100 watts, the output shows 1 watt and no swr. Power supply
> voltage and current no issue.
>
> Question: Does the 10 watt output and the PA3 share the same circuit for
> return power (SWR) or are they different?

______________________________________________________________
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
Message delivered to [hidden email]

Don Wilhelm

Re: K3 PA3 not working

In reply to this post by Grant Bright W5XB

Grant,

Better than calling sales, email [hidden email] and ask for an RSA
number.
Do not send anything until you have the RSA number and shipping
instructions. Shipping without that paperwork will only confuse things
in the repair process.

73,
Don W3FPR

On 9/22/2018 6:53 PM, Grant Bright W5XB wrote:

Don Wilhelm

Re: K3 PA3 not working

In reply to this post by Grant Bright W5XB

Grant,

I might also add that the wattmeter needs some forward power to compute
the SWR from the reverse power.
So if there is no forward power, the SWR will be reported as 1:1.

73,
Don W3FPR

On 9/22/2018 6:53 PM, Grant Bright W5XB wrote:

> Many thanks Don,
>
> Good to know...the tx does ok at 12 watts, but when you turn the power up
> (hear the click), the power drops off to zero, and the swr disappear.
>
> I have a good Collins wattmeter, that shows the 12 watts fine...but I do
> have a dummy load. I'll have one tomorrow and try doing a calibration with
> the utility.
>
> If it is the KPA3, I hope I can pull it and send just it to Elecraft. I'll
> call Monday about that.
>
> Many thanks for your help.
>
> 73, Grant, W5XB
>
>
>
> -----Original Message-----
> From: Don Wilhelm [mailto:[hidden email]]
> Sent: Saturday, September 22, 2018 6:37 PM
> To: Grant Bright W5XB; [hidden email]
> Subject: Re: [Elecraft] K3 PA3 not working
>
> Grant,
>
> Yes, the K3 uses the same power and SWR sensing for less than 12 watts
> and greater than 12 watts.
>
> It sounds like you have a non-functioning KPA3.
> You might want to check with an external wattmeter to be certain.
>
> 73,
> Don W3FPR
>
> On 9/22/2018 6:05 PM, Grant Bright W5XB wrote:
>> Hello All,
>>
>> Just received a new to me K3. Love all the features and ease of operation!
>>
>> Checking it out this afternoon, transmitting into a good swr, at 12 watts
> or
>> less, the output shows 12 watts and 1.2 SWR
>>
>> Turned up to 100 watts, the output shows 1 watt and no swr. Power supply
>> voltage and current no issue.
>>
>> Question: Does the 10 watt output and the PA3 share the same circuit for
>> return power (SWR) or are they different?
>

Elecraft mailing list

Re: K3 PA3 not working

In reply to this post by Don Wilhelm

Is the resettable 2A circuit breaker worth checking first?

Mike - K9JRI

> On Sep 22, 2018, at 7:06 PM, Don Wilhelm <[hidden email]> wrote:
>
> Grant,
>
> Better than calling sales, email [hidden email] and ask for an RSA number.
> Do not send anything until you have the RSA number and shipping instructions. Shipping without that paperwork will only confuse things in the repair process.
>
> 73,
> Don W3FPR
>
> On 9/22/2018 6:53 PM, Grant Bright W5XB wrote:
>> Many thanks Don,
>>
>> Good to know...the tx does ok at 12 watts, but when you turn the power up
>> (hear the click), the power drops off to zero, and the swr disappear.
>>
>> I have a good Collins wattmeter, that shows the 12 watts fine...but I do
>> have a dummy load. I'll have one tomorrow and try doing a calibration with
>> the utility.
>>
>> If it is the KPA3, I hope I can pull it and send just it to Elecraft. I'll
>> call Monday about that.
>>
>> Many thanks for your help.
>>
>> 73, Grant, W5XB
>>
>>
>
> ______________________________________________________________
> 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
> Message delivered to [hidden email]

ke9uw

Re: K3 PA3 not working

Occam again...

Chuck Jack
KE9UW

Sent from my iPhone, cjack

> On Sep 22, 2018, at 6:15 PM, Michael Blake via Elecraft <[hidden email]> wrote:
>
> Is the resettable 2A circuit breaker worth checking first?
>
>
> Mike - K9JRI
>
>
>
>
>
>
>> On Sep 22, 2018, at 7:06 PM, Don Wilhelm <[hidden email]> wrote:
>>
>> Grant,
>>
>> Better than calling sales, email [hidden email] and ask for an RSA number.
>> Do not send anything until you have the RSA number and shipping instructions. Shipping without that paperwork will only confuse things in the repair process.
>>
>> 73,
>> Don W3FPR
>>
>>> On 9/22/2018 6:53 PM, Grant Bright W5XB wrote:
>>> Many thanks Don,
>>>
>>> Good to know...the tx does ok at 12 watts, but when you turn the power up
>>> (hear the click), the power drops off to zero, and the swr disappear.
>>>
>>> I have a good Collins wattmeter, that shows the 12 watts fine...but I do
>>> have a dummy load. I'll have one tomorrow and try doing a calibration with
>>> the utility.
>>>
>>> If it is the KPA3, I hope I can pull it and send just it to Elecraft. I'll
>>> call Monday about that.
>>>
>>> Many thanks for your help.
>>>
>>> 73, Grant, W5XB
>>>
>>>
>>
>> ______________________________________________________________
>> 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
>> Message delivered to [hidden email]
>
> ______________________________________________________________
> 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
> Message delivered to [hidden email]

Chuck, KE9UW

Richard Ferch-2

Re: K3 PA3 not working

In reply to this post by Grant Bright W5XB

Surely the first thing to check would be the CONFIG:KPA3 setting, wouldn't
it? If it is NOT INST, change it to PA NOR.

73,
Rich VE3KI

Occam again...

Chuck Jack
KE9UW

Sent from my iPhone, cjack

> On Sep 22, 2018, at 6:15 PM, Michael Blake via Elecraft <[hidden email]> \
> wrote:
> Is the resettable 2A circuit breaker worth checking first?
>
>
> Mike - K9JRI
>
>
>
>
>
>
> > On Sep 22, 2018, at 7:06 PM, Don Wilhelm <[hidden email]> wrote:
> >
> > Grant,
> >
> > Better than calling sales, email [hidden email] and ask for an RSA number.
> > Do not send anything until you have the RSA number and shipping instructions. \
> > Shipping without that paperwork will only confuse things in the repair process.
> > 73,
> > Don W3FPR
> >
> > > On 9/22/2018 6:53 PM, Grant Bright W5XB wrote:
> > > Many thanks Don,
> > >
> > > Good to know...the tx does ok at 12 watts, but when you turn the power up
> > > (hear the click), the power drops off to zero, and the swr disappear.
> > >
> > > I have a good Collins wattmeter, that shows the 12 watts fine...but I do
> > > have a dummy load. I'll have one tomorrow and try doing a calibration with
> > > the utility.
> > >
> > > If it is the KPA3, I hope I can pull it and send just it to Elecraft. I'll
> > > call Monday about that.
> > >
> > > Many thanks for your help.
> > >
> > > 73, Grant, W5XB
> > >
> > >
> >