This review of the Palstar AT2KD tuner will start off with a few comments about tuners in general, and will not get too technical. There are many other places to find technical reviews of this device… eHam ratings indicate that it is a 4.8 out of 5, which is a pretty darn good rating, and some pretty good technical reviews there as well.
Over time I have had both auto tuners, and manual tuners. I have used differential tuners, and standard tuners… I always return to manual tuners, using roller inductors, and large caps every time… An auto tuner is simpler to operate, but the power levels just are not there yet for me on anything I can afford, nor have I been able to get an autotuner, (of the ones I have used), to tune to an exact 1:1, every time, on every band. It is always something like 1.x:1, I have seen as high as 1.7:1, which can cause issues with the new solid state amps, such as the ALS-1306, which I own. See the section under “Conclusions”, for more on that subject. Read more