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Thanks soulcode I will be trying this ASAP as my magnum 257hp has this issue.  Not on tx as far as I know but rx is a killer.  I hope this works.  I know a lot of noise gets picked up by the antenna and I have all my equipment properly grounded, but I can't get passed the alternator whine!!!  If this works like shown then it's a god sent!!  What a mess trying to hear people over the engine whine especially when I am at higher rpm's.  Thanks for the link and god bless.