I'm not seeing the matching performance of the ATU in my 6700 that I would expect. I'm trying to use a G5RV on all bands, which is possible with the ATU in my K3. I realize that the K3 ATU is spec'ed at 10:1 whereas the Flex ATU is spec'ed at 6:1, but I'm seeing cases where the Flex is unable to match an SWR under 5:1.
For example, the ATU is unable to match the antenna at 3.690 MHz. According to my MFJ 259B analyzer, the SWR is 4.7:1. The reactance is 65 ohms resistive and 59 ohms capacitive, which is about 88 ohms, well within the published range of 8.3 - 300 ohms.
Similarly, the ATU will not match the antenna at 28.0 MHz which has a SWR of 4.8:1 and a reactance of 35 resistive and 50 capacitive or 61.
I think I also found a glitch in the SSDR display:
I have my tune power set to 10 watts. On 10m and below, the tune power slider stays at the 10w level during tuning, but on 6 meters, the slider which is still set at 10w, jumps to zero during the tuning and then back to 10 after the tuning is complete.
When the tuner is unable to find a match, none of the indicators (Success Byp or Memory) light up, but the ATU button is still blue. Clicking the ATU button causes the ATU button to dim and the Byp indicator to light up. What is the status of the ATU if it is unable to find a match? Is it engaged and at the last setting tried?
Before running my tests, I cleared the ATU memories and I ran the tests with the tuner memory disabled.