[Elecraft] KXPA100 RS-232 problem

[Thomas Beltran]

I was able to get the KXPA100 running again.  It seems that the firmware had
partial installed but then stopped.  So, I tried it on yet a third computer,
and was able to install the firmware.  This was done with the amp only.  The
baud rate, according to the utility program was 38400.  Then, hooked up
everthing (KX3, amp, and loop controller), and tried each of the baud rates
in the KX3 menus.  No luck.  Looking at the programmer's reference, it looks
like one can change the KXPA100's PC baud rate with the ^BRP command,
however, I am not sure how it is actually done.   Tom


-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Thomas
Beltran
Sent: Friday, November 04, 2016 10:05 AM
To: donwilh at embarqmail.com; Elecraft at mailman.qth.net
Subject: Re: [Elecraft] KXPA100 RS-232 problem

Hi Dick John and Don and thank you.  I checked everything and it was good.
I realized the KXPA100 did not have the current firmware, so I attempted to
upgrade it.  The upgrade failed, and now the utility cannot even connect to
the  KXPA100.  I tried a different computer and same result.  For now, I
just unhooked the KXPA100, and I am able to drive my SG-500 to about 200
watts with the KX3 alone.  I will have to revisit the amp problem.  However,
right now, I just received the loop and wanted to make sure it works.  Thank
you for your reponses.  Later, I will try to communicate with the KXPA100
alone and see what I can find out.  Thank you.

-----Original Message-----
From: Don Wilhelm [mailto:donwilh at embarqmail.com]
Sent: Friday, November 04, 2016 7:21 AM
To: tbeltran at earthlink.net; Elecraft at mailman.qth.net
Subject: Re: [Elecraft] KXPA100 RS-232 problem

Tom,

Do you have the KX3 to KXPA100 adapter cable plugged as indicated on page 14
of the KXPA100 manual?  If so, make certain the RJ-45 plugs are fully
inserted - you should hear a slight click when they are fully mated.  If
there is any doubt about them seating, pull back the boot on the RJ-45 cable
end and push the inside connector body "home".

73,
Don W3FPR

On 11/4/2016 9:37 AM, Thomas Beltran wrote:
> I have read some emails concerning the RS-232 connector on the 
> KXPA100's back panel not working with software applications that need 
> the rig's
data,
> but I did not see any resolution.  In my case, I just set up a ciro
mazzoni
> midi loop.  This loop will follow the radio's frequency, getting data 
> from the rig.  Unfortunately, the loop's control box only works 
> automatically when the the RS-232 connector from the control box is 
> hooked directly to
the
> KX3's side panel, meaning I can only run 10 watts.  BTW, there is a 
> slight delay in setting the frequency, but loop works pretty nicely.  
> However, it will not work when plugged into the RS-232 connector on the
KXPA100's back
> panel.    If it makes any difference, the loop control box uses a DB9, so
I
> am using the KXSER (3.5mm to DB9-F) Cable.  Hopefully, someone on this
list
> has not only encountered this problem but has a remedy.  Thanks in
advance.
> Tom W2CRN

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