dold@76.usenet.us.com wrote in news:g8s7fn$897$3@blue.rahul.net:
> A benefit of the wired DSP-400. A real boom mike. The Jabra has a
> stubby boom, longer than most.
>
>
When a friend gave up flying because he couldn't pass the flight
physical, he handed me his beautiful aviation headset from David Clark &
Co., the one all the major airline pilots across the planet fly in.
There is a little VOX/amplifier unit that clips on your belt to automate
keying the transmitter when you need both hands to fly the plane, to the
relief of all the passengers in the back...(c;
As you can see, even though it's mono and a very old design, they still
bring a fairly premium price, even without the VOX/Amp unit I don't even
see offered any more.
http://www.mypilotstore.com/MyPilotStore/sep/644
The new model, is, in fact, a stereo unit so you can listen to the MP3
player in between transmissions from Flight Controllers on the ground
and that airline pilot trying not to cut your little Cessna in half
screaming at you to DIVE...DIVE!
http://www.mypilotstore.com/MyPilotStore/sep/1028
I think the old unit, with its fancy microphone supporting hardware that
looks MUCH more military and macho than the mamby-pamby gooseneck the
new mic has as a stalk, looks much better.
I have used my unit with ham radio both at home and in the car. It's
too dangerous to drive with because it TOTALLY blanks out ALL external
sound when you put it on. The earphones have a gel-cored soft plastic
seal that completely leave your ear untouched inside them in a very
effective anechoic sound chamber lined with some kind of sound absorbing
foam. You can't even hear the wife bitching at you to take out the
garbage, screaming at the top of her lungs, if you got these babies on
right! The engine noise of a small light plane is barely perceptable,
making flying inside there nearly as dangerous from falling asleep at
the stick.
The mic on the end of the two-piece metal holder is actually two
microphones! The microphone on the side of the mic that faces away from
you is a cancelling mic to pick up the plane's noises. It is hooked up
out-of-phase with the mic element you're speaking into. Any ambient
noise picked up by both...simply cancels very well in electronics. Any
voice on the main mic only, picked up out of phase by the back mic, ends
up ENHANCED after the back mic reverses the phase again. The sound of
the voice through it sounds like it's almost, not quite but almost, in a
dead quiet room....even in a noisy Cessna!
but, alas, we do have our limits of "acceptable style" allowed through
the front door of a fancy restaurant. The other people at the table
trying to hold a conversation with you NOT listening in your little
anechoic chambers angers most of them when you don't respond, having
drifted off into dreamland listening to your favorite tracks.
David Clarks would be the answer for the very HARDCORE mobile addicts,
of course, becoming real nerd (not chick) magnets for several hundred
yards on all directions.
Chicks won't like them when they find out you aren't listening to her
tell you about her last boyfriend's queer fetishes, even the diapers.