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MFJ-495 L4

Solution
The L4 is used to prevent RF, if any, from getting into the ground plane of the Keyer.  In most cases, you probably don't need it, but if there are a lot of RF around, it helps.  If needed, you can replace it with a ferrite bead with 3 or 4 turns.


Regards,

 

Harry Wong

 

Project Engineer
MFJ Enterprises, Inc.
300 Industrial Park Road
Starkville, MS  39759  USA
Article details
Article ID: 86
Company: MFJ
Date added: 2017-01-12 14:49:40
Views: 15

 
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