For anyone installing a short wave SSB or ham radio, I have an alternator noise filter and some copper ground foil. Both are new, never used, in original packaging.
Newmar, 150 Amp Alternator Noise Filter, $229 at Fisheries Supply, a bargain at $115.
Copper Ground Foil, 25 feet of 3” wide, “Gordon West recommended”. Fisheries Supply has 2” wide at $4.60/ft, or $115 for 25 feet. A bargain at $50.
Buy both for $130.