Mike,

I own a KX3 with the internal tuner and another without. The first sees a lot of use /P and on DX trips and the internal ATU means I do not have to even think about it. I tend to use resonant antennas but the odd random wire gets used too. The other I have to be VERY aware that there is no ATU and that means resonant antennas only and I have used it /P a couple of times and I use an Elecraft T1 with it. I never bought the internal one because I had that ATU. It is second nature now to connect the ATU between the KX3 and antenna so and I have one extra short BNC patch lead for just this purpose and a nice velcro strip on the KX3.

I plan to use the second KX3 for transverter use mostly where the ATU is redundant.

To be honest if you never intend using it 'barefoot' or /P and you can always trust whatever you are driving transverter, PA or antenna then you can get away without it. I would not even think about operating the KX3 without some sort of match to 50 ohms though.

Remember that the KX3 has some protection in place anyway if the VSWR is too high it will fold back.

You might notice on occasion the KX3 WITH the internal ATU can momentarily on a new band/frequency when tuning it starts at a very high VSWR and a HI CURR message can appear but it drops fast enough towards 1.0 if it can find a match!

72

Dom
M1KTA

On 20/05/13 04:28, mike wrote:
I am getting close to buying a KX3 and want to get my options right.With the
KXPA100 coming out soon with an internal tuner, it would seem there is no
need to purchase the internal KXAT3 with the KX3. Am I reading this
correctly?

..mike  AI6II

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