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Hi Tim,

I have atu-1000 too. I can send you a hex file. What kind of display do you have and what settings do you prefer??

To my knowledge (I am still verifying schematic) the hardware is the same. Just different PCB layout with bigger components.

I lost the original 1000 firmware too. Silly mistake while copying the pic memory.?

So it should be the same firmware except for eeprom settings (different bridge setting as well the power multiplier setting). The rest is very similar as far as I can judge at the moment. Not sure if you want / need to change the threshold when swr is measured (minimum power). You can set the maximum the should to receive a warning.?

A concern I picked up from other folks; the cores provided by some suppliers are poor quality and the Q factor is very very low. Which means the cores get saturated very quickly when high power is applied.? It would be good to measure the Q factor.

Regards Onno