[Elecraft] K3: remote control

[Kevin Rock]

Instead of a full blown computer at the remote site why not just design an  
app for an Ethernut board?  If you have IP access to the site then the  
Ethernut board can run the K3 from firmware.  Set the watchdog timer so if  
there are any glitches it times out and resets the board.  Send the  
commands to the IP address and the Ethernut board parses them and sends  
them to the K3.  Fairly simple app to write should only take a day or two.
    73,
       Kevin.  KD5ONS


On Tue, 05 Jul 2011 14:29:58 -0700, Don Wilhelm <w3fpr at embarqmail.com>  
wrote:

>   Don,
>
> It is not a good idea to just "remove the power" from the K3 - just like
> a computer, it needs to power down gracefully and store some things for
> the next time it is powered up.
>
> The K3 does feature a Remote Power On input that can be used to turn it
> on.  To turn it off remotely, one can use the PS0; command (see the K3
> Programmer's reference).
>
> A dedicated controller *could* be designed to serve in place of the
> computer at the remote end, although that would take too much effort
> IMHO for a one-off installation.  A computer is probably the easiest
> implementation, although as you aptly pointed out, it may need to be
> reset if it hangs for some reason.  In my experience, if the computer is
> not doing a write function at the time the "plug is pulled", it will
> come up again without incident or damage - so your solution for the
> computer may be workable.
>
> 73,
> Don W3FPR
>
> On 7/5/2011 4:52 PM, Don Nelson wrote:
>> On 7/5/2011 2:27 PM, Alan Bloom wrote:
>>> Yes, you do need a computer at the operating end.  However it is really
>>> nice not to need one at the radio end.  If the computer crashes you
>>> really don't want to have to drive to the mountaintop to reset it.   
>>> Also
>>> having a computer running 14/7 can waste a lot of power.  The computer
>>> at the operating position can be turned off when you aren't using it.
>>>
>>> Alan N1AL
>>>
>> If you put an IP addressable power strip on the mountain top, you can
>> remotely turn the computer/radio/etc. on and off at will. This can save
>> power. This can give you a remote method for resetting the computer.
>> This can be another way of turning off the radio.
>>
>> Don, N0YE
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html


-- 
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/