Hi Mal,

You wrote:

...
I happen to have  a bunch of 9 ferrite rods 100mm long and wound

> ...

Bundling is not worth the effort.
In case of ferrite loop sticks length is what matters.

> ...

This is just a fun experiment for me because I do not need any

> more antennas at this qth
> ...

Mephistopheles:
"My good sir, you observe this matter
As men these matters always see;
But we must manage that much better
Before life's pleasures from us flee."

[°_^]

Greetings from the Continent,
Peter, df3lp