After I published an article on an audio SWR meter, I had several
discussions with a couple of blind hams. It turns out that the IC-706/703
series of radios are popular. The reason is that besides providing beeps
with the button presses, the actual beep lengths change based on where you
are within menus. I.e., getting into menus have one length of beep, sub
menus have a slightly shorter beep, and sub-sub menus have even shorter
beeps. So these hams learned the beeps, and could determine where they were
within menus by listening to the beep lengths, and counting the beeps.
Just wanted to pass this on.
Phil - AD5X
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