My First Report KPA 1500

[Richard Zalewski]

Just finished my first contest with the KPA-1500.  Unit arrived yesterday
in perfect condition.  Packaging very professional.  Putting on a new 220v
AC plug took the longest of anything.  Probably made the first Q less than
an hour after the box was dropped off at the door.

Today was just a short CW contest (King of Spain).  Everything was great.
The fans do come on rather quickly even in a CW contest but with my
headsets noise level wasn't objectionable.  Will see when it comes time for
a RTTY or SSB test.

I did notice an occasional flashing of yellow and red in the SWR led
string.  I watched my inline meter and it showed nothing during those
bursts so something is going on there.  Believe this was noted by others.

I ran the contest with 40w of drive from the TS-990S and produced in the
area of 1400w.

So far quite pleased.

Richard
*W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU,
J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV


*Be joyful in hope, patient in affliction, faithful in prayer*
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[Joe Subich, W4TV-4]

On 2018-05-19 4:45 PM, Richard Zalewski wrote:
 > I did notice an occasional flashing of yellow and red in the SWR led
 > string.  I watched my inline meter and it showed nothing during those
 > bursts so something is going on there.

Likely ALC overshoot (momentary overdrive) from the Kenwood rig.

73,

    ... Joe, W4TV


On 2018-05-19 4:45 PM, Richard Zalewski wrote:

> Just finished my first contest with the KPA-1500.  Unit arrived yesterday
> in perfect condition.  Packaging very professional.  Putting on a new 220v
> AC plug took the longest of anything.  Probably made the first Q less than
> an hour after the box was dropped off at the door.
>
> Today was just a short CW contest (King of Spain).  Everything was great.
> The fans do come on rather quickly even in a CW contest but with my
> headsets noise level wasn't objectionable.  Will see when it comes time for
> a RTTY or SSB test.
>
> I did notice an occasional flashing of yellow and red in the SWR led
> string.  I watched my inline meter and it showed nothing during those
> bursts so something is going on there.  Believe this was noted by others.
>
> I ran the contest with 40w of drive from the TS-990S and produced in the
> area of 1400w.
>
> So far quite pleased.
>
> Richard
> *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU,
> J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV
>
>
> *Be joyful in hope, patient in affliction, faithful in prayer*
> ______________________________________________________________
> 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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[Roy Koeppe]

"...did notice an occasional flashing of yellow and red in the SWR led
string.  I watched my inline meter and it showed nothing during those
bursts so something is going on there. (etc.)"


This is common with the new amp.  Elecraft is working on a firmware update
to correct it -- hopefully. Just ignore flashing LEDs for now.

73,   Roy    K6XK


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