An updated version of the entire article "A Bandwidth-Based Frequency Plan", is
no available on the web at:

http://www.qsl.net/kq6xa/freqplan/

Please refer to the new updated color chart of the frequency plan.

It equitably distributes the space within the allocated band so that
approximately the same number of narrowband 500Hz signals vs wider bandwidth
signals can share the precious spectrum resources. Keep in mind that the plan
is mode-neutral. If you can use technology to shoehorn a voice into 500Hz, then
you can transmit it anywhere in the band. You may laugh, but my experience
working with commercial DSP digital modulation systems proves to me that it can
happen in Amateur Radio.

In our present mode-based system in USA, we have a lot of nearly-dormant band
segments. When the number of HF operators doubles overnight, we will no longer
have the luxury to waste spectrum as we have in the past.

I would like to thank everyone who has contributed with suggestions and
constructive criticism during the development of the plan.

The article and band chart is now on the web at:
http://www.qsl.net/kq6xa/freqplan/

73---Bonnie KQ6XA