Actually I do have a "communications" headset in the form of a David Clark 
H10-30.

http://www.davidclark.com/avHeadsetSpecs/avSpecs.aspx?ModelName=H10-30

Wearing these is close to putting your head in a vise since they are designed 
as hearing protection as well as communicating.  

Wes  N7WS

--- On Sun, 8/23/09, Peter N. Spotts <kc...@arrl.net> wrote:

> From: Peter N. Spotts <kc...@arrl.net>
> Subject: Re: [Elecraft] KX1 headphones
> To: elecraft@mailman.qth.net
> Date: Sunday, August 23, 2009, 5:59 PM
> On Sun, 23 Aug 2009 16:16:31 -0700
> "Erik N Basilier" <ebasil...@cox.net>
> wrote:
> 
> > For the Amateur Service with its variations in
> modulation
> > specifications, it doesn't make any sense to me to put
> response
> > shaping in the headphones, as we then might want
> multiple sets for
> > multiple modes. Also, it doesn't make sense to limit
> the bandwidth at
> > a point where it doesn't affect AGC sensing. Many
> years ago when it
> > was hard to come by good selectivity at the IF, some
> bandwidth
> > limitation in the headphones may have been justified
> for reasons of
> > economical implementation. I don't know if airplane
> pilots' headsets
> > limit frequency response, but if they do, I suspect it
> is a matter of
> > standards being hard to change, and manufacturers not
> wanting cheaper
> > products made for other purposes to work well.
> > 
> 
> 
> Now you did it;  sent me to some airline-pilot-headset
> sites just for
> curiosity's sake. Sennheisers for AL pilots, a mere
> $717.00, frequency
> response 16-22,000 Hz. Given my high-fi speakers at
> 20-20,000, sounds
> like airline pilots go hi-fi too. And noise cancelling as
> well. Move
> over Bose! Telex and Plantronics aviation headsets had no
> easily
> accessed information on frequency response.
> 
> Interesting discussion!
> 
> With best regards,
> 
> Pete
> 
> 
> 
> 
> 
> 
> 
> -- 
> Peter N. Spotts -- KC1JB
> http://www.kc1jb.net (under construction)
> Email: kc...@arrl.net |
> Skype: pspotts
> QRP-ARCI # 4174 | North American QRP CW Club # 2446
> Flying Pigs QRP # 1983 | SKCC # 4853 | QCWA #34679
> W5JH Black Widow paddle #601
> 



      
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Reply via email to