Don, I get it. Thanks for the details. Just one more reason I am glad I converted to the separate Amp/ATU box. This makes it very easy.
73, Tom KG3V On , Don Wilhelm <[email protected]> wrote: > Tom, > First the answer about the K3 - there is some "cleanup" work that must be > done when the K3 is powered off, so the power off button should be used > rather than just "pulling the plug". With the K2, there is no difference > between "pulling the plug" and using the power switch. Yes, just like > your computer, the K3 is exposed to writing bad data if the plug is > pulled (or a power outage occurs). The chances of anything really > disastrous is small, but some "strange happenings" may reveal themselves > after such an event - the real answer is "it all depends" on what the K3 > was doing at the time power went out - if it was writing something to > storage, that "last used frequency, mode, etc." may not be preserved > properly. > If the base K2 and the KPA100 are mounted in the same box, then the > situation is different - you would have to interrupt the higher current > connection (to the KPA100) if everything were connected normally. > Now, there "is a way" -- if you do not connect the AUX 12V connector from > the KPA100 to the base K2, the base K2 will not be powered by the KPA100 > power supply connection - you will have to power the base K2 from the > coaxial connector. That makes the power off conditions the same as with > the remotely mounted KPA100. > 73, > Don W3FPR > On 1/15/2012 8:26 PM, [email protected] wrote: > Don, > Thanks for the reply, and for all your other help in configuring my K2 > station over the last 5 years. > Just out of curiosity - can this not be done if they are mounted in the > same box? I think when mine were configured that way, there still were > two separate 12V inputs - or do they get tied together? I would like to > know if my timeout-switch approach would be useable by someone with the > KPA-100 in the same chassis as the K2-base. > Interesting that it sound like it is not as "safe" to pull power from the > K3 during operation. What about a natural power outage event? Would there > be some complications in the recovery process? > 73, Tom > KG3V > On , Don Wilhelm [email protected]> wrote: > > Tom, > > > > > > > > Yes, it is sufficient to kill the power to the base K2 (when the KPA100 > is mounted remotely). Unlike the K3, there is little to be lost (bits > mixed up) if you turn the power source off for the K2 during normal > operation. > > > > > > > > 73, > > > > Don W3FPR > > > > > > > > On 1/15/2012 2:14 PM, [email protected] wrote: > > > > > > I am assembling a remotely-operated K2 station. I need a timer that will > > > > kill a "runaway transmitter." I am planning to install a kill-switch on > the > > > > 12 volt DC supply, as that is the only way I can be sure to disable the > > > > transmitter. If I have a K2 and the separate 100W power amp, is it > > > > sufficient/safe to just disable the power to the K2 base unit (leaving > > > > power to the amp connected)? > > > > > > > > Anybody else experienced in auto-shutoff of a K2? > > > > > > > > > > > > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
