[Lowfer] Ferrite Loading Coil ?

Pete Cranwell pete at pcranwell.com
Mon Feb 11 11:17:42 EST 2008


In receiving you don't have high currents therefore you won't saturate a
core in receiving applications.

-----Original Message-----
From: lowfer-bounces at mailman.qth.net
[mailto:lowfer-bounces at mailman.qth.net]On Behalf Of Peter Barick
Sent: Monday, February 11, 2008 10:50 AM
To: lowfer at mailman.qth.net
Subject: [Lowfer] Ferrite Loading Coil ?


All LF thinkers,
Re: Specifing A Proper Loading Coil For A LF Vertical Antenna

Hi,

Given that Hi-Q loading coils are the goal in efficient tx vert. antennas so
that special measures
to reduce ohmic and reacive loses are taken when constructing such a coil to
resonate the ant. system.

But what about an vertical used for receiving? The high current is missing
from such so is the
need for High-Q as important?

Consider that an inductor based on inductance from ferrite material would
not be desirable due to
"saturation" fortx power levels, but would that same arrangement suffice for
rx usage? Moreover,
could all the L be derived from a ferrite inductance and produce as good a
rx antenna?

Just a thought on a sub-zero morning.

Peter
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