Now doggonnit, let's get our stories straight! Ron D'Eau Claire says:
> ... if you add the resistors and diodes and do not > change the timing, the VFO may become unstable, Eric Swartz says: > There is no downside to making this h/w mod, even if you do not enable > the menu option. Am I missing something, or are these two statements contradictory? Maybe Wayne can be the tie-breaker :-) 73 -- Joe KB8AP On Aug 23, 2009, at 4:08 PM, Ron D'Eau Claire wrote: > Well, it shouldn't hurt to do the mod, but I agree with David if you > can't > find any noise. > > The reason 3.24 is required is that it provides a menu entry for > changing > the bus timing as described in the procedure. A slightly different > timing is > required for stable operation once the diodes and resistors are added. > > If you try to load the firmware and change timing without adding the > resistors and diodes, or if you add the resistors and diodes and do > not > change the timing, the VFO may become unstable, making un-commanded > QSYs. > (On my K3 they were in 100 Hz steps.) > > The default timing in all the firmware, including 3.24 and up, is > correct > for K3's that do not have the diodes and resistors added, so you > need do > nothing after upgrading your firmware if you haven't added the > parts. Your > K3 will continue to work FB just as always. > > A revised mod procedure will be posted Monday to make that point > clear. > > Ron AC7AC > ______________________________________________________________ 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
