[Elecraft] K-3 Remote Power ON - OFF

[Don Wilhelm]

Art,

I don't have specific information about it, so I can just give a guess.  
If I were implementing a remote power on/power off sequence, I would 
activate the relay for power on.  Whether I de-activate it after a few 
seconds, I don't know, but for certain on power off, I would first 
deactivate the relay and then send the PS0 command to the K3.

If I sent the PS0 first and then deactivated the power on relay, there 
is a chance of a delay between those two event, and the K3 could power 
off and then power on again because ACC pin 8 is still grounded.
In rapid-fire sequence, it may not make a difference, but why not do it 
in the best order first and be done with any possible problems.

73,
Don W3FPR

KZ5D at aol.com wrote:
> Hi,
>  
>  
> I'm setting up the rig to operate from a remote location over the Internet. 
>  On page 43, the manual has a very brief description of how to turn the 
> radio on  and off.
>  
> If I activate a relay remotely to ground Pin 8 on the ACC socket, I can  
> turn the radio on. Will it hurt anything if I use a relay that keeps this pin 
> on  ground the entire time the radio is ON? Or do I need a momentary contact 
> relay  to just give it the brief connection to ground?
>  
> Then to turn it off, the manual states that a PS0 cat command should be  
> sent. Then deactivate the POWER ON signal. Specifically, after sending a cat  
> command PS0, will I simply have to remove the ground from Pin 8 on the ACC  
> socket? Or how will this be accomplished?
>  
> Thanks for the input.
>  
> Art KZ5D
>
>
>
> **************An Excellent Credit Score is 750. See Yours in Just 2 Easy 
> Steps! 
> (http://pr.atwola.com/promoclk/100126575x1222585065x1201462786/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072&hmpgID=62&bcd=Jun
> eExcfooterNO62)
> ______________________________________________________________
> 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
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com 
> Version: 8.5.339 / Virus Database: 270.12.92/2203 - Release Date: 06/26/09 05:53:00
>
>