Hi Peter,
Suggest you experiment !
Two short pieces of ferrite are never as good as one long one, as anyone who
has ever fractured a rod will know.
I don't know of any "magnetic glue" which will join the lines of flux
together again - even tiny air gaps reduce the inductance.
However, I have had some success bundling rods together - winding wire
around three identical rods in parallel produced a more effective aerial
than a single rod. Very similar to increasing the diameter of a loop
antenna.
73
Hugh M0WYE
----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Thursday, January 05, 2006 9:32 AM
Subject: LF: ferrite rods
I have a pile of ferrite rods that I have rescued from radios over the
years.
I have been thinking about trying to make them into one larger antenna rod
for receiving only.
Would I get any advantage over a normal short single rod, or do the
advantages from one aspect get cancelled out by other aspects. I'm sure
this must have been tried out before any advice would be appreciated.
If I was to put them into an overlapping bundle should the separate bars
be
a)in physical contact with each other
b) completely isolated from each other
c) if glued together is there a specific "glue" that should be used
happy new year to all on list
regards
peter G8AFN
--------------------------------------------------------------------
mail2web - Check your email from the web at
http://mail2web.com/ .
|
