I just received my ATU-100-0A for my IC705, even at 10w , it will not tune. Yes I have external power on the 705. I have tried the tuner on my FT891 and it tunes fine even down to 8w. I understand that the firmware can be adjusted ? Can I do this through the USB-C port? Or should I have bought a different version, I wanted to have options incase I needed it for something else.
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Thanks Steve ?VE1SK
