well when I do my "tour of the 590s" I want to briefly describe as 
though I sound like I know what I am talking about, these features, 
as well as things I have discovered such as; when you hold down the 
a/b button to check the split frequency, you can actually tune the 
main knob while holding down the button, which is truly neat! and 
having the speech not speaking at that time is much better than 
having to click the mic button a tiny bit to stop it speaking all the 
time, etc.
thank you, Steve! a lot for the explanations. This is truly a fantastic rig.
I started out with the most humble of gear, a DX35 Heath transmitter 
and Collins 75A1, tank of a receiver, (weighed 52 pounds) and was 
solid, though not real sensitive.
comparing what was then to now, is like science fiction come to life 
in many ways.

Curt

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