[Elecraft] K3 13.8 VDC power

[Richard Fjeld]

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