[Elecraft] CW Pitch

[Dauer, Edward]

Interesting; thanks for sharing the site.  It shows that I have a peak at
500 Hz, which correlates pretty well with my preferring a CW pitch of
about 550.  The site has, however, two recognized sources of error.  One
is that it can¹t correct for peculiarities in the response curve of the
headset used. The other is that the pitch change itself creates a
subjective sense of impact.  It showed that I have a second peak at around
3 Khz, which seems physiologically unlikely.  Tones that high I find
annoying, like chalk screeching on a blackboard, which may be the
subjective equivalent of loud.

The other side of the QSO equation is what tone frequency will best get
you through the QRM.  I wonder where most people who are listening to me
(and a pileup of others) have their filters peaking?  By listening to whom
and where the DX is working as the pileup goes on we can infer the
operator¹s tuning habits and be on the next expected spot, but not all of
them behave in discernible ways.

If the target station seems to be listening at the same spot through
multiple QSOs (as in contests), is it better to split (or XIT) and
transmit up a touch first, or down, and by how much?  Anyone know where
the CW response peak of the ham population (or of its receivers) lies?

Ted, KN1CBR


>------------------------------
>
>Message: 12
>Date: Sat, 28 Feb 2015 19:16:33 -0600
>From: Matt Murphy <matt at nq6n.com>
>To: Phil Hystad <phystad at mac.com>
>Cc: Elecraft Reflector <elecraft at mailman.qth.net>
>Subject: Re: [Elecraft] CW listening pitch
>Message-ID:
>	<CANth69hVamMQuJPCayCPgs=9Zo=YzHoL9JbHCoKvLRYc71o_5A at mail.gmail.com>
>Content-Type: text/plain; charset=UTF-8
>
>This website will let you generate an equal loudness curve for your own
>hearing:
>
>http://newt.phys.unsw.edu.au/jw/hearing.html
>
>73,
>Matt NQ6N/9