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[RFI] Ferrite Material

To: <rfi@contesting.com>
Subject: [RFI] Ferrite Material
From: Palomar Engineers <Palomar@compuserve.com> (Palomar Engineers)
Date: Tue, 4 Jan 2000 00:38:20 -0500
Amidon curves show 77 material best for HF but tests we have made recently
show better performance by 43  material above 7 MHz. Our tests were made
with the Autek meter. I understand that Ed Hare is going to make definite
tests with ARRL lab equipment and will put these on the ARRL site. -- The
core manufacturer uses 43 for most RFI applications including the split
beads. -- Jack, K6NY

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