WTB: KPXA100

[Donald Wines]

Before I take the leap and order from the mother ship does anyone have a
good used KXPA100 that is excess to their needs or are looking to upgrade?

If so, please contact me off list with price info.

Thanks for the BW,
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[Doug Turnbull]

Dear Elecraft OMs and YLs,
     Is there any progress in obtaining CE permission for the KPA1500.    I
hope to purchase one but understand you can not even ship to European
private orders without this approval.    I called five weeks ago and
approval seemed imminent then but no word since.

               73 Doug EI2CN

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[Paul Baldock]

A friend of mine's KPA-1500 has just failed. It behaves like half the
PA has died, with max output power about 900W, and requiring
excessive drive to get that. He has calls in to service but no
response yet. Has anybody experienced such a failure?

Thanks

- Paul  KW7Y

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[ROBERT MUELLER]

I have the same problem. I thought it was in the software I am using (HRD, FT8, JTAlerX). Perhaps not.
I have to but in 100 watts from the K3S to get about 900 watts out.

> On October 16, 2018 at 10:35 PM Paul Baldock <[hidden email] mailto:[hidden email] > wrote:
>
>
>     A friend of mine's KPA-1500 has just failed. It behaves like half the
>     PA has died, with max output power about 900W, and requiring
>     excessive drive to get that. He has calls in to service but no
>     response yet. Has anybody experienced such a failure?
>
>     Thanks
>         * Paul KW7Y
>
>
>     ______________________________________________________________
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[Eric Swartz - WA6HHQ]

Hi Paul,

Can you send me the contact info for your friend so we can help him?  (Or have
him contact [hidden email] immediately.)

Using the KPA1500 utility to download and sending us your KPA1500 config file is
always required in cases like this and it will also help us quickly diagnose
what's up. (That file contains the full amp setup and fault log history.)
Hopefully, this may just be a cockpit error. (Overdrive activates the 3 dB input
attenuator.)

Also, NEVER drive the KPA1500 at 100W! That is well in excess of its fault level
and can damage the amp. Our normal max input drive level is about 61 W or so if
I recall correctly.  Above that point the 1500 automatically lights the yellow
OVR light and switches on a -3 dB input attenuator. After continuous slight
drive for 10-20 secs at above this max drive level the amp will then hard fault
into standby. Never increase drive when the OVR light is on - that will only
increase the risk of damaging the amp.

OVR and the 3 dB attenuator will activate for overdrive, high reflected power,
high PA current etc. When it lights, that is a message to REDUCE DRIVE and
correct the problem. Once the drive is reduced, after several seconds the OVR
light and input attenuator will turn back off.

73,
Eric
/elecraft.com/

On 10/16/2018 7:35 PM, Paul Baldock wrote:

> A friend of mine's KPA-1500 has just failed. It behaves like half the PA has
> died, with max output power about 900W, and requiring excessive drive to get
> that. He has calls in to service but no response yet. Has anybody experienced
> such a failure?
>
> Thanks
>
> - Paul  KW7Y
>
> ______________________________________________________________
> 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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[Eric Swartz - WA6HHQ]

Hi Robert,

Please contact [hidden email] immediately so we can help you.

Using the KPA1500 utility to download and sending us your KPA1500 config file is
always required in cases like this and it will also help us quickly diagnose
what's up. (That file contains the full amp setup and fault log history.)
Hopefully, this may just be a cockpit error. (Overdrive activates the 3 dB input
attenuator.)

Also, NEVER drive the KPA1500 at 100W! That is well in excess of its fault level
and can damage the amp. Our normal max input drive level is about 61 W or so if
I recall correctly.

Above that point the 1500 automatically lights the yellow OVR light and switches
on a -3 dB input attenuator. After continuous drive for 10-20 secs at just above
this max drive level the amp will then hard fault into standby. Never increase
drive when the OVR light is on - that will only increase the risk of damaging
the amp.

OVR and the 3 dB attenuator will activate for overdrive, high reflected power,
high PA current etc. When it lights, that is a message to REDUCE DRIVE and
correct the problem. Once the drive is reduced, after several seconds the OVR
light and input attenuator will turn back off.

Please, -never- increase drive power when the OVR light is on or blinking.

73,
Eric
/elecraft.com

(Note - To make sure everyone gets this info, I've send substantially the same
email via the list to the three of you who have posted on this topic this morning.)
/
On 10/17/2018 4:54 AM, ROBERT MUELLER wrote:
> I have the same problem. I thought it was in the software I am using (HRD, FT8, JTAlerX). Perhaps not.
> I have to but in 100 watts from the K3S to get about 900 watts out.
>

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