[K3] KPA500 # 370 operational

[Randy Moore]

The KPA500 built for my friend (I'm very envious!) is working great!  
I'm only able to test it up to about 200w due to dummy load, ATU and
balun limitations, but 2 QSOs tonight reported strong, clean signal!

I have observed something, however.  I was using 5w from my K3, through
the KPA, to my ancient MFJ-945 ATU.  I haven't used that ATU in quite a
while, so my initial ATU adjustments caused a  "REFL HI" fault on the
KPA500.  After that happened, my K3, went to 94w power setting (which is
what I had it set to before this experiment).  Happened twice.

K3 firmware 4.39/2.73.  KPA500 firmware 1.11.  K3 ATU in BYPASS.

73,
Randy, KS4L
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[Don Wilhelm-4]

Randy,

Under those conditions, your results are to be expected.  The KPA500
shut down due to the REFL HI, so the K3 reverted to the "non-KPA500
connected and ready" state.

73,
Don W3FPR

On 9/5/2011 9:01 PM, Randy Moore wrote:

> The KPA500 built for my friend (I'm very envious!) is working great!
> I'm only able to test it up to about 200w due to dummy load, ATU and
> balun limitations, but 2 QSOs tonight reported strong, clean signal!
>
> I have observed something, however.  I was using 5w from my K3, through
> the KPA, to my ancient MFJ-945 ATU.  I haven't used that ATU in quite a
> while, so my initial ATU adjustments caused a  "REFL HI" fault on the
> KPA500.  After that happened, my K3, went to 94w power setting (which is
> what I had it set to before this experiment).  Happened twice.
>
> K3 firmware 4.39/2.73.  KPA500 firmware 1.11.  K3 ATU in BYPASS.
>
> 73,
> Randy, KS4L
>

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