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KPA500 on remote

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Ron Leech

KPA500 on remote

Can Some one tell me if the KPA500 sould come back on if the 220v power was turned off then back on. My amp has on ocation locked up using it remote so I wired a relay to turn it off with the radio and back on when the radio is turned back on but the amp still reqires that I switch it back on.Should it come back on with the ac power by it self or can it be made to come on.
73s va7mv Ron Leech
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Oliver Dröse

Re: KPA500 on remote

Hi Ron,

no, if you just cut off mains and bring it back the KPA500 will not turn
on again by itself. You have to turn it on by either pressing the front
panel on switch, by using the KPA Utility (this is how I do it in my
remote station) or by a small macro script assigned to one of the K3
macro buttons if (and it works only if) you have a K3 connected to the
KPA500 using the 15pin HD connector cable. Scroll down half way on
http://elecraft.365791.n2.nabble.com/KPA500-amp-RemoteRig-td7372486.html
to read about the details concerning the latter.

Best bet is to use the KPA Utility as it will give you even more details
about the KPA's operational status, i.e. voltage, current draw, SWR,
power out, a.s.o., certainly something you want to know about and have
control of being a few (hundred) miles away. ;-)

73, Olli - DH8BQA

Am 14.01.2014 02:29, schrieb Ron Leech:

> Can Some one tell me if the KPA500 sould come back on if the 220v power was turned off then back on. My amp has on ocation locked up using it remote so I wired a relay to turn it off with the radio and back on when the radio is turned back on but the amp still reqires that I switch it back on.Should it come back on with the ac power by it self or can it be made to come on.
> 73s va7mv Ron Leech
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Dick Dievendorff-4

Re: KPA500 on remote

In reply to this post by Ron Leech

Yes and no. When you switch the mains power back on, the microcontroller should recognize the front panel power button press and be able to connect to software via its serial port. The KPA Utility should be able to reconnect; use its port tab "Test Communications" button. If the KPA500 has mains power, the Utility should indicate that the Amp is ready for firmware load or power on. After that reconnection, the KPA Utility Operate tab has a power button that should simulate pressing the Amp front panel power button.

73 de Dick, K6KR

> On Jan 13, 2014, at 17:29, "Ron Leech" <[hidden email]> wrote:
>
> Can Some one tell me if the KPA500 sould come back on if the 220v power was turned off then back on. My amp has on ocation locked up using it remote so I wired a relay to turn it off with the radio and back on when the radio is turned back on but the amp still reqires that I switch it back on.Should it come back on with the ac power by it self or can it be made to come on.
> 73s va7mv Ron Leech
> ______________________________________________________________
> 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