Re: [Elecraft] KX3 - Switching power source while operating

To clarify --K3, K3S, KX3, and KX2 shut down sort of like a computer -- they write their complete setup to RAM when you turn them off, and that setup determines how they turn on. When you kill power by removing the power source, that write doesn't occur, so the radio turns on (reboots) with

Re: [Elecraft] KX3 - Switching power source while operating

Grant, RE:  "Seems to me the most straightforward approach would be to put a set of batteries in the KX3.  Then you can drop and restart external power without worrying about the time delay." That was exactly my first thought as well.  It certainly works fine on receive and it solves the

Re: [Elecraft] KX3 - Switching power source while operating

Seems to me the most straightforward approach would be to put a set of batteries in the KX3. Then you can drop and restart external power without worrying about the time delay. The radio won’t care. Only thing you might have to do is adjust output power if you were operating above the

Re: [Elecraft] KX3 - Switching power source while operating

> On 28 Jun 2017, at 23:51, Ken G Kopp wrote: > > Wonder if a high capacity electrolytic capacitor would hide the effect of the > "power bump"? If the bump is short enough, and the caps are big enough, then I don't see why not. From the perspective of the KX3, there

Re: [Elecraft] KX3 - Switching power source while operating

Terje, A loss of power will not allow the KX3 to power down gracefully, so some information such as what frequency, mode, and other data may be lost. To insure a seamless transfer between batteries, you may want to design your controls so that two battery packs are in parallel for a short time

[Elecraft] KX3 - Switching power source while operating

Hi, I’m wondering if anything is known about how much of an intermittent loss of power a KX3 will more or less not notice, during full use (transmit at 15W), and during receive? Asking because I’m considering some power solutions, and wondering if it could be useful to switch between multiple