KPA500 Stby flaw in V 1.23?

[Rick WA6NHC]

Hello all,

 

Today I upgraded the KPA500 from V 1.18 to V 1.23.  I now note the following
problem:  The amp does not go to standby on any band change.  I went back to
1.18 to test this (it worked as described) and back to 1.23 (won't drop to
standby).

 

So I am currently on 1.18 again.  Is anyone else seeing this problem?

 

Rick wa6nhc

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[Richard S. Leary]

Rick,

I am running KPA500, F/W Ver 1.23. Oper/Stby is working fine here. Have you
checked if KPA500 Menu item "Band Chg" is set to "STBY"?

In STBY either band changes on the K3 or KPA500 work fine, putting the 500
from OPER to STBY.  If Band Chg is set to "NOR", the 500 stays in OPER with
either K3 or 500 band changes.

Good Luck

Rick, W7LKG

 

 

From: [hidden email] [mailto:[hidden email]] On
Behalf Of Rick Bates
Sent: Thursday, January 31, 2013 21:22
To: [hidden email]; [hidden email]
Subject: [Elecraft_K3] KPA500 Stby flaw in V 1.23?

 

 

Hello all,

 

Today I upgraded the KPA500 from V 1.18 to V 1.23.  I now note the following
problem:  The amp does not go to standby on any band change.  I went back to
1.18 to test this (it worked as described) and back to 1.23 (won't drop to
standby).

 

So I am currently on 1.18 again.  Is anyone else seeing this problem?

 

Rick wa6nhc

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[Bill Hammond]

I have KPA500 with 1.23 and KAT500 at 1.18 with radio at 4.60 with no standby issues with the amplifier.
73,
Bill
AK5X




On Jan 31, 2013, at 11:22 PM, Rick Bates wrote:

>
> Hello all,
>
>  
>
> Today I upgraded the KPA500 from V 1.18 to V 1.23.  I now note the following problem:  The amp does not go to standby on any band change.  I went back to 1.18 to test this (it worked as described) and back to 1.23 (won’t drop to standby).
>
>  
>
> So I am currently on 1.18 again.  Is anyone else seeing this problem?
>
>  
>
> Rick wa6nhc
>
>
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Bill Hammond
[hidden email]
Bill Hammond-AK5X
[hidden email]
[hidden email]
K3 #69
P3 #817
KPA500 # 149
K2/100 #4637
K1 #2033
KX1 #1023
KX3 #583
W2
T1

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[Rick WA6NHC]

Hi again,

I see that I wasn't clear enough for some folks as a few here and private
email have said a similar thing.  So here is the issue:  SOMETIMES with v
1.23 firmware, when changing bands, the amp will not drop into standby mode.
This setting is to protect the station from operator brain fade or
inattention.

The actual sequence of events appears to be unique to cause this.  I am
working with Elecraft on this and results are (of course) promising.  To get
a response on the same day from any company is amazing.  They must sleep as
little as I manage.  ;o)

While more testing is needed (and on the new, unreleased code) if anyone has
this issue, try a FULL KPA500 power down starting from the front power
switch (wait for the fan to stop) and including the rear switch (count to
ten, then fire it all back up) after the firmware update.  It may help, it
may not but new code is on the way.  So far, the complete power cycle has
resolved the issue but we're still testing to find the (subtle) cause.

73,
Rick wa6nhc

-----Original Message-----
From: Bill Hammond

I have KPA500 with 1.23 and KAT500 at 1.18 with radio at 4.60 with no
standby issues with the amplifier.
73,
Bill
AK5X




On Jan 31, 2013, at 11:22 PM, Rick Bates wrote:

>
> Hello all,
>
> Today I upgraded the KPA500 from V 1.18 to V 1.23.  I now note the
following problem:  The amp does not go to standby on any band change.  I
went back to 1.18 to test this (it worked as described) and back to 1.23
(won't drop to standby).
>

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