On Sat, 02 Sep 2006 18:22:41 +0100, wrote:

On Thu, 31 Aug 2006 21:19:11 -0400, Roger
wrote:

snip

I've been looking at headsets recently and came to the conclusion that
the QFR XCC clone is a good compromise at $240. Compared to other ANR
headsets it has some of the highest passive attenuation though only
~10db electronic. If the electronics fail it should still be very
good.

By the way Roger you mentioned in a previous post that 3db was
half/double. I think you're still thinking of power not volts.
I assume ANR refers to volts so think 6db = half/double, or am I
getting rusty with all this?

Sound (and our hearing) is logarithmic so I'm pretty sure that the 3
db holds for sound as it does for power.




David
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com