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100 W into K3

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it9gsf

100 W into K3

Hello!

Here at II9P my friend Carmelo sent 100 Watts into my K3 ant connector (ANT1).

Radio is not working! What do you believe is broken? I don't remember if the radio was ON or OFF.

Help very appreciated.

Regards,
Fabio, IT9GSF.

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M0AFJ

Re: 100 W into K3

Probably the front end fried

Sent from my iPhone

On 2 Mar 2013, at 14:45, "[hidden email]" <[hidden email]> wrote:

> Hello!
>
> Here at II9P my friend Carmelo sent 100 Watts into my K3 ant connector (ANT1).
>
> Radio is not working! What do you believe is broken? I don't remember if the radio was ON or OFF.
>
> Help very appreciated.
>
> Regards,
> Fabio, IT9GSF.
>
> ______________________________________________________________
> 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

N5GE

Re: 100 W into K3

In reply to this post by it9gsf

I'm afraid that would be a question for Elecraft Support:
[hidden email]

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

On Sat, 2 Mar 2013 15:45:04 +0100 (CET), "[hidden email]"
<[hidden email]> wrote:

>Hello!
>
>Here at II9P my friend Carmelo sent 100 Watts into my K3 ant connector (ANT1).
>
>Radio is not working! What do you believe is broken? I don't remember if the radio was ON or OFF.
>
>Help very appreciated.
>
>Regards,
>Fabio, IT9GSF.
>
>______________________________________________________________
>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

Amateur Radio Operator N5GE

Iain MacDonnell - N6ML-2

Re: 100 W into K3

In reply to this post by it9gsf

There are various PIN diodes that can be damaged. Here's what support
suggested (in the past) to begin troubleshooting:

"If the rig has a KXV3 option installed, PIN diode D5 will be damaged
by high levels of RF coming into the receiver (more than about 2w).
This would affect both the main and sub when the antenna is shared.

Remove the KXV3 and jumper across J66 pins 8-10, and 13-15 and see if
the sensitivity returns. If so, D5 needs replaced or the entire KXV3
if you are not able to replace the tiny SMD D5.

If only the main is affected, it would be D25 on the RF board near the
little stop band filter board.

It could also be the larger PIN diodes on the RF board or the KPA3 if
a lot of power or a big lightning strike caused the damaged. See if
the signals get strong with the Power knob below 12w so the KPA3 PIN
diodes are not in the signal path."

73/GL!

~iain / N6ML

On Sat, Mar 2, 2013 at 6:45 AM, [hidden email]
<[hidden email]> wrote: