Hi Ed, Thanks for adding this to your software.
For both rigs, you could also read the “LxxCxxNx” info right off the VFO A display, if you’d like. Just use MN to get to the ATU DATA menu entry (index 112), then use SWT to virtually tap “ATU” (KX2) or “ATU TUNE (KX3), and finally read the data right off the VFO display using DS. Note that it’s a transitory display lasting about 2.5 seconds. Wayne N6KR > On Mar 31, 2017, at 2:19 PM, Edouard Lafargue <edou...@lafargue.name> wrote: > > > OK, just added a "ATU Diagnostics" in Wizkers:Radio for the KX3 during my > lunch break. Very simple so far. I will implement it for the KX2 too (in > "blind mode", since I don't have a KX2) and release an update during the > week-end. http://wizkers.io/wizkersradio if you don't already know about it > ;) > > <Screen Shot 2017-03-31 at 2.15.42 PM.png> > > > On Fri, Mar 31, 2017 at 12:10 PM, Wayne Burdick <n...@elecraft.com> wrote: > The KX2 firmware currently being field tested allows you to determine the > ATU’s LC network settings while in the menu. (This feature will be added to > the KX3 as well.) > > Below is the information needed to extract the actual L, C, and L-net > configuration values from the information that is flashed on VFO A when you > tap “ATU” in the new ATU DATA menu entry. > > Wayne > N6KR > > * * * > > While in the ATU DATA (or ATU MD) menu entry, tap ‘ATU’ to obtain the L/C/Net > values. > > The displayed data format is “LaaCbbNc;”, where: > > aa = inductance bitmap in ASCII hex format > bb = capacitance bitmap in ASCII hex format > c = L network relay setting: > > A = capacitance on antenna side > T = capacitance on transmitter side > > Example: Suppose “L03C12NT” is flashed. The network setting is shown by the > last character (A or T; see above). > > Next, convert the L and C hexadecimal quantities to binary: > > 03 => 00000011 (L) > 12 => 00010010 (C) > > Compare these values to the lists below, which show approximate L and C > values for each bit of the binary word. In the example above, 00000011 for L > means that two smallest inductors are switched in (.05 and .11 uH). Add these > together to determine the total L value. Similarly, add up the selected > capacitors based on the binary value 00010010. > > > --------------- Binary Value ---------- > 0 0 0 0 0 0 0 > L, uH: 4.0 2.0 1.0 .5 .23 .11 .05 > > > --------------- Binary Value ---------- > 0 0 0 0 0 0 0 > C, pF: 680 330 164 82 39 18 10 > > > Note on L/C values: The ATU uses industry standard 5 % values for C, and > approximately 5% tolerance on toroidal inductors. L and C are not exact but > will be monotonic over the required range of about 3 to 5 elements for a > given match. In addition, all ATUs have stray L and C that will result in > selection of somewhat different values than expected. This effect becomes > more pronounced as the operating frequency increases. > > > > > > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to edou...@lafargue.name > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
