Hans, here are a couple of minor suggestions from the Operations Manual.
4.6 - Frequency Presets - Why not have CANCEL be the EXIT button (rather than the right rotary button) and LOAD be the right rotary button? That would make it more intuitive with the usual function of the EXIT button?and consistent with the Messages selection buttons. I realize that this is currently consistent with the QCX, but I never liked it there either as I usually ended up cancelling rather than loading! I just didn't say anything.
5.14 - Clock Setting - Is there any way to set the clock manually? Might be nice to do, so I don't have to use another device to log QSOs? I normally log on paper and don't drag a GPS unit along for SOTA.
? ? ? ? - Backlight setting - Should be a way to turn the backlight on temporarily for 5 seconds or so, by single button pushes. Along the same lines, it would be nice to have a third setting that normally has the backlight off, but automatically turns the backlight on for 5 seconds or so whenever a button is pressed or an encoder turned (but not when paddles or key are pressed). Don't know that you need both of these things - the latter would work just fine.
5.17 - Factory Reset - Suggest putting the 'Enter 17' system (from QCX) back in place. Although I haven't done it, it would just be too easy to accidentally press the encoder button when you meant to turn it.
--
73, Dan? NM3A