Richard Clark wrote:
Ian White GM3SEK wrote:
that the ARRL was overly optimistic when
they asserted that a coiled coax choke can cover
all three octaves of HF.

Agreed.

Really? 3 to 30 MHz is more than three octaves:
3 - 6 - 12 - 24 + 1/3 octave more

3 is not in the ham bands. 3.6 - 7.2 - 14.4 - 28.8
There's the three octaves the ARRL was talking about.
--
73, Cecil http://www.w5dxp.com