[Elecraft] K3 13.8 VDC power

[QUENTIN COLLIER]

Oops - sorry about the previous posting below....my cat Henry was "helping" me with my e-mails.

Anyway, a belated Happy Christmas and best wishes for 2015 to all readers of this most interesting list.



73, Quin G3WRR



________________________________
 From: QUENTIN COLLIER <q.g.collier at btinternet.com>
To: Richard Fjeld <rpfjeld at embarqmail.com>; "elecraft at mailman.qth.net" <elecraft at mailman.qth.net> 
Sent: Friday, 26 December 2014, 9:07
Subject: Re: [Elecraft] K3   13.8 VDC power
 

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________________________________
From: Richard Fjeld <rpfjeld at embarqmail.com>
To: elecraft at mailman.qth.net 
Sent: Tuesday, 23 December 2014, 6:30
Subject: Re: [Elecraft] K3   13.8 VDC power



Well, more good information.  Maybe I stand corrected.  It's been nearly 4 years since I have read the manual, and my memory may have read more into the statements than it should have.

I refer to page 13, right hand column, halfway down, entitled "POWER".  There is a note that reads "To ensure correct save of operating parameters, turn the K3 off /before/ turning the power supply off."  When I read that, I thought about the short duration power failures we experience.

Page 44 touches on updating the nonvolatile memory correctly before shut-down either by the power switch, or in this case a 'PS0;' command via the RS232 interface.

As you saw, there was a reply from a contester  who had several power outages with multiple K3's without any troubles.  That was good to learn of.

I thought If I only use the battery for backup to shutdown, there should be a minimum of charging.  I have been using a UPS on the AC supply, but I trust a float battery I can test on the DC.  I may abandon the whole idea and stay with the UPS. Sometimes rejection is a good thing.

Note: As I learn more about this radio, I appreciate the thought that went into it's design.

Thanks for the posts, and the bandwidth.

Dick, n0ce

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