Elecraft

Remote on/off of the K3

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Gary Smith-2

Remote on/off of the K3

On one of the lists I'm on, one of the
guys asked the following question & I have
no answer for him.

----------------
"Dear friends,
I am using K3 for remote operation.
Recently we experience the increase
of power failures here in Ukraine.
Despite of having 7AH battery as a PS
buffer, sometimes when the
electricity is off for a long time, K3 is
switched OFF.
This requires the trip to the remote site.
Is there an easy way to remotely switch K3
on and OFF through the serial
port? Does a software exists that is
dealing with this.

I was trying to find the K3 menu item that
will enable switching K3 back
ON when electricity is restored (like in
all computer motherboards) but
could not.
Would appreciate the assistance."
----------------------------

If this can be done, is there a link or
info I can get to him to help him out?

Thanks,

Gary
KA1J

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Rick WA6NHC-2

Re: Remote on/off of the K3

Here is the answer that I sent him:

My entire K line is managed by a computer. I use a USB board with a
pair of relays (only need one) and some specific software (shortcut on
the desktop) to tickle the ACC line to turn the K3 on when I am remote
operating.

http://www.ebay.co.uk/itm/5v-usb-relay-2-channel-programmable-computer-control-for-smart-home-new-s3-/121792206668?hash=item1c5b61974c:g:rY8AAOSwYHxWJT7L
is one example.

The software is at:
https://www.dropbox.com/s/tzngxi28uqune65/USBRelay.zip?dl=0

And naturally since I put this together, I've not had a power failure.

73,
Rick

On 12/15/2016 9:38 AM, Gary Smith wrote:

> On one of the lists I'm on, one of the
> guys asked the following question & I have
> no answer for him.
>
> ----------------
> "Dear friends,
> I am using K3 for remote operation.
> Recently we experience the increase
> of power failures here in Ukraine.
> Despite of having 7AH battery as a PS
> buffer, sometimes when the
> electricity is off for a long time, K3 is
> switched OFF.
> This requires the trip to the remote site.
> Is there an easy way to remotely switch K3
> on and OFF through the serial
> port? Does a software exists that is
> dealing with this.
>
> I was trying to find the K3 menu item that
> will enable switching K3 back
> ON when electricity is restored (like in
> all computer motherboards) but
> could not.
> Would appreciate the assistance."
> ----------------------------
>
>
> If this can be done, is there a link or
> info I can get to him to help him out?
>
> Thanks,
>
> Gary
> KA1J
>
> ______________________________________________________________
> 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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Don Wilhelm

Re: Remote on/off of the K3

In reply to this post by Gary Smith-2

Gary,

The way to remotely turn the K3 ON is to pull the ACC connector pin 8 to
ground (ACC pin 5 or 12). See Remote Power On in the manual.

There is a command to turn the K3 OFF in the K3 Programmer's Reference,
but when powered off, the serial port is not powered, so it could not
respond to any power on command. Unlike computer motherboards,
everything in the K3 is turned off (except the batery powered real time
clock).

73,
Don W3FPR

On 12/15/2016 12:38 PM, Gary Smith wrote:

Nr4c

Re: Remote on/off of the K3

In reply to this post by Gary Smith-2

PWR ON is on the Acc2 port. Needs someway to ground the pin to turn ON the K3. Internet to relay, telephone to relay.

Sent from my iPhone
...nr4c. bill

> On Dec 15, 2016, at 12:38 PM, Gary Smith <[hidden email]> wrote:
>
> On one of the lists I'm on, one of the
> guys asked the following question & I have
> no answer for him.
>
> ----------------
> "Dear friends,
> I am using K3 for remote operation.
> Recently we experience the increase
> of power failures here in Ukraine.
> Despite of having 7AH battery as a PS
> buffer, sometimes when the
> electricity is off for a long time, K3 is
> switched OFF.
> This requires the trip to the remote site.
> Is there an easy way to remotely switch K3
> on and OFF through the serial
> port? Does a software exists that is
> dealing with this.
>
> I was trying to find the K3 menu item that
> will enable switching K3 back
> ON when electricity is restored (like in
> all computer motherboards) but
> could not.
> Would appreciate the assistance."
> ----------------------------
>
>
> If this can be done, is there a link or
> info I can get to him to help him out?
>
> Thanks,
>
> Gary
> KA1J
>
> ______________________________________________________________
> 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]

Robin Moseley-2

Re: Remote on/off of the K3

In reply to this post by Rick WA6NHC-2

That zip file looks familiar.. Rick ;)

de G1MHU Robin

-----Original Message-----
From: Rick WA6NHC
Sent: Thursday, December 15, 2016 5:55 PM
To: [hidden email]
Subject: Re: [Elecraft] Remote on/off of the K3

Here is the answer that I sent him:

My entire K line is managed by a computer. I use a USB board with a
pair of relays (only need one) and some specific software (shortcut on
the desktop) to tickle the ACC line to turn the K3 on when I am remote
operating.

http://www.ebay.co.uk/itm/5v-usb-relay-2-channel-programmable-computer-control-for-smart-home-new-s3-/121792206668?hash=item1c5b61974c:g:rY8AAOSwYHxWJT7L
is one example.

The software is at:
https://www.dropbox.com/s/tzngxi28uqune65/USBRelay.zip?dl=0

And naturally since I put this together, I've not had a power failure.

73,
Rick

______________________________________________________________
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]