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KPA500 problem

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KPA500 problem

My KPA500 amplifi_es_ (file://\\es) normally but seems to have a
switching problem on receive. The receiver (I've tried several) works fine when
the amp is turned off or when it is switched to STBY, but when I switch the
KPA500 to OPER the receiver goes nearly dead as if there is no antenna
connected to it. I tried resetting the KPA500 to factory menu settings but no
change. There is full output on transmit.

The KPA500 is still under warranty. Is this a settings problem or should
I send it back?

73 Ray W2RS

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Ed Muns

Re: KPA500 problem

Send it back for the TR switch update. This is a known problem with early
KPA500s and there is an easy factory fix.

Ed W0YK

_________________________________________

Ray W2RS wrote:

My KPA500 amplifi_es_ (file://\\es) normally but seems to have a
switching problem on receive. The receiver (I've tried several) works fine
when
the amp is turned off or when it is switched to STBY, but when I switch the

KPA500 to OPER the receiver goes nearly dead as if there is no antenna
connected to it. I tried resetting the KPA500 to factory menu settings but
no
change. There is full output on transmit.

The KPA500 is still under warranty. Is this a settings problem or should
I send it back?

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
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Jack Brindle-2

Re: KPA500 problem

In reply to this post by Elecraft mailing list

When you switch to OPER, is there an asterisk on the left side of the LCD? This would indicate that the PTT line is engaged or shorted. fix that connection and things should return to normal.
There are several things that could be causing the trouble you see. Work through them with Elecraft customer support and you may avoid shipping the amp back.

- Jack Brindle, W6FB

Sent from my iPad

> On Jun 21, 2015, at 8:16 AM, Ray W2RS via Elecraft <[hidden email]> wrote:
>
> My KPA500 amplifi_es_ (file://\\es) normally but seems to have a
> switching problem on receive. The receiver (I've tried several) works fine when
> the amp is turned off or when it is switched to STBY, but when I switch the
> KPA500 to OPER the receiver goes nearly dead as if there is no antenna
> connected to it. I tried resetting the KPA500 to factory menu settings but no
> change. There is full output on transmit.
>
> The KPA500 is still under warranty. Is this a settings problem or should
> I send it back?
>
> 73 Ray W2RS
>
> ______________________________________________________________
> 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]

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Elecraft mailing list
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Help: http://mailman.qth.net/mmfaq.htm
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Elecraft mailing list

Re: KPA500 problem

In reply to this post by Elecraft mailing list

Hi Jack,

No asterisk.

Tnx, Ray W2RS

In a message dated 6/21/2015 9:37:57 A.M. US Mountain Standard Time,
[hidden email] writes:

When you switch to OPER, is there an asterisk on the left side of the LCD?
This would indicate that the PTT line is engaged or shorted. fix that
connection and things should return to normal.
There are several things that could be causing the trouble you see. Work
through them with Elecraft customer support and you may avoid shipping the
amp back.

- Jack Brindle, W6FB

Sent from my iPad

> On Jun 21, 2015, at 8:16 AM, Ray W2RS via Elecraft
<[hidden email]> wrote:
>
> My KPA500 amplifi_es_ (file://\\es) normally but seems to have a
> switching problem on receive. The receiver (I've tried several) works
fine when
> the amp is turned off or when it is switched to STBY, but when I switch
the
> KPA500 to OPER the receiver goes nearly dead as if there is no antenna
> connected to it. I tried resetting the KPA500 to factory menu settings
but no
> change. There is full output on transmit.
>
> The KPA500 is still under warranty. Is this a settings problem or
should

> I send it back?
>
> 73 Ray W2RS
>
> ______________________________________________________________
> 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]

Jack Brindle-2

Re: KPA500 problem

Call Customer Support tomorrow morning. They may have more suggestions for you. Worst case, you will need an RMA from them, but I really hope they can have you try something that I’m not thinking of at the moment to make it work.

- Jack B, W6FB

> On Jun 21, 2015, at 10:04 AM, Ray W2RS via Elecraft <[hidden email]> wrote:
>
>
> Hi Jack,
>
> No asterisk.
>
> Tnx, Ray W2RS
>
>
> In a message dated 6/21/2015 9:37:57 A.M. US Mountain Standard Time,
> [hidden email] writes:
>
> When you switch to OPER, is there an asterisk on the left side of the LCD?
> This would indicate that the PTT line is engaged or shorted. fix that
> connection and things should return to normal.
> There are several things that could be causing the trouble you see. Work
> through them with Elecraft customer support and you may avoid shipping the
> amp back.
>
> - Jack Brindle, W6FB
>
> Sent from my iPad
>
>> On Jun 21, 2015, at 8:16 AM, Ray W2RS via Elecraft
> <[hidden email]> wrote:
>>
>> My KPA500 amplifi_es_ (file://\\es) normally but seems to have a
>> switching problem on receive. The receiver (I've tried several) works
> fine when
>> the amp is turned off or when it is switched to STBY, but when I switch
> the
>> KPA500 to OPER the receiver goes nearly dead as if there is no antenna
>> connected to it. I tried resetting the KPA500 to factory menu settings
> but no
>> change. There is full output on transmit.
>>
>> The KPA500 is still under warranty. Is this a settings problem or
> should
>> I send it back?
>>
>> 73 Ray W2RS
>>
>> ______________________________________________________________
>> 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]