[ICOM] Shaft Encoder vs pot?

[Dick Dievendorff]

http://en.wikipedia.org/wiki/Shaft_encoder
http://en.wikipedia.org/wiki/Potentiometer


73 de Dick, K6KR


-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of ken.holland at evonik.com
Sent: Tuesday, April 29, 2008 6:05 AM
To: icom at mailman.qth.net
Subject: [ICOM] Shaft Encoder vs pot?



Hello all,
Just a short question here, what is the difference in a *shaft encoder* (as
used in the 756 Pro PBT encoder) and a "variable resistor" or pot?  I have
wondered that when turning the volume knob on car radios - they seem to
have many little "detents" as you turn the knob.  Just what info is being
sent to the processor?  Pots I understand, but not *encoders*.

Thanks for any info.

Ken H>
K9FV----
Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
Icom Users Net: Sundays, 1700Z, 14.316 MHz
Icom FAQ: http://www.qsl.net/icom/