From the Fred Cady manual, page 33, Chapter 3 "Elecraft recommends
that you DO NOT turn your K3s off by turning off the external power
supply. Using the POWER switch allows the K3s to store variables such
as the current VFO frequencies in EEPROM before shutting down. This
might not happen if you turn the power off at the power supply. You can
turn the power supply off after the K3s shuts down".
73
Bob, K4TAX
On 10/13/2017 3:22 PM, Ron D'Eau Claire wrote:
Yes! Like most equipment these days, the K3 needs to do an orderly shutdown under control
of its processor to turn off safely and reliably. Like your P.C. you can pull power
unexpectedly and it will often recover okay when power is reapplied, but you can also get
corrupted data that forces a firmware reload - perhaps even using the forced MCU load
procedure in the Owner's manual - as well as discovering that it turns on in an
unexpected state or that it has "forgotten" certain parameters you set when it
was last used.
73, Ron AC7AC
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dave Cole (NK7Z)
Sent: Friday, October 13, 2017 1:00 PM
To: [email protected]
Subject: Re: [Elecraft] K3 after turning on doesn't receive or transmit
Respectfully, is that really true? The K3 needs to be shutdown via the Power
switch due to some sort of shutdown procedure, (or internal timings issue),
within the radio?
73s and thanks,
Dave
NK7Z
http://www.nk7z.net
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