This is the answer to item 7a below: Button A selects Band A; button B selects Band B. Therefore band switching can be done from the microphone and there is no need to touch the display.
[ngg src=”galleries” ids=”103″ display=”basic_thumbnail” thumbnail_crop=”0″]I tested this on my FTM-400 and it worked; however, it does not work if the Lock feature is activated.