[ARC5] dB Power and QRP according to HR magazine. [Was dB - Apples & Oranges]

Kenneth G. Gordon kgordon2006 at frontier.com
Wed Oct 30 17:41:59 EDT 2013


On 30 Oct 2013 at 12:08, Bruce Long wrote:

> Seeing as the amplitude response of human hearing is logarithmic such
> numbers and ratios are sorta- kinda- correct.
> 
> bruce

In addition, the frequency response of human hearing is most definitely NOT 
"flat", exhibiting very significant peaks in response, in addition to tremendous 
gaps.

This factor enables the ear to "ignore" (out of necessity, not choice) some 
frequencies of sounds that would be severely interfering, thus enhancing 
those it can hear well.

In my own case, I used to be seriously bothered by the 15750 KHz horizontal 
oscillator in a common TV set, but haven't heard that for years. I am 71 now.

Ken W7EKB


More information about the ARC5 mailing list