That's because the K3(S) does not have a power ON command, you have to tickle one of the ACC lines (pin 8 from memory, but check).  When it's powered down, very little is actually running internally.

I use a USB relay for this purpose (attached to the station computer) for remote ops.

I've asked (SEVERAL times) for the internal timer to be made 'sticky' so it can turn on the radio not just once, but once a day as a last resort method.

Rick nhc


On 5/27/2019 11:11 AM, lmarion wrote:
I just tried it on the K3S, it was on, the POWER OFF key turned it off. Hit the 
POWER ON key and it came back POWER ON FAILED TRY AGAIN. That may be I don’t 
have something set correctly. So Far all of the function keys have worked.


From: Frank Krozel
Sent: Monday, May 27, 2019 11:52 AM
To: lmarion
Cc: Elecraft Reflector
Subject: Re: [Elecraft] MFJ1234

Curious, does this also turn the radio on and off on either of those?







Sincerely,  Frank Krozel t: 1-630-924-1600 [email protected]
BSEE,   AASEET,   FCC Lic.# PG-18-19178,   KG9H
Electronic Instrument Associates - Central, Inc. ...since 1971
w: www.electronicinstrument.com  d/l our linecard at 
http://www.electronicinstrument.com/lc.pdf


On May 27, 2019, at 10:23 AM, lmarion <[email protected]> wrote:


   If you get the RigPi make sure you order from MFJ so you can get a correct 
cable for the K3s and a different one for KX3.
   Its being sold as a “complete kit, all you need is your rig”, by some. Not 
true.
   Also be aware its pretty much plug and play on my Apple tablet. Windows 
takes several other software additions and settings, you know the drill.
   Have not tried android.

   Not a K4 by any stretch but monitors the K3S  smoothly on my Ipad and Iphone.

   Leroy  ab7ce
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