Patrice, I assume you are "fast_logger", as identified by Kevin.
have any effect, a ferrite (or air-loop) with LW or MW winding must
1. be hardwired into the PL380 in lieu of the internal one, in
case the internal MOS "varactor" will tune it, or
2. be tuned
with an external parallel variable capacitor for induction
coupling to the
internal ferrite antenna. This can work well, but can be
require patience with tuning and spacing from
the internal ferrite winding.
See other recent postings.
Steve´s series/parallel option looks very
promising. I don´t have any litz
for a tailored winding, but will try the
idea with cannibalised windings like yours.
----- Original Message -----
Subject: [ultralightdx] FERRITE BOOSTER
i have added 2 pics to
the group's file "ferrite booster"; it is a ferrite bar I recuperated from
old receiver ; unfortunately putting it close to my tecsun pl-380 in any
position fails to produce
the slightest boost to the signal level at least
Is there something i could do to make it boost my signal
level without opening my tecsun's belly ?