[Elecraft] KX1 headphones

[Peter N. Spotts]

On Sun, 23 Aug 2009 16:16:31 -0700
"Erik N Basilier" <ebasilier at 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
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