Larry, It'son the receive signal. I haven't had any complaints on my transmitted note. As an aside I use a 45 amp ps dedicated to the Orion. Thanks, Vince Santis, N1VS Winsted, CT 06098 -- Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.1.411 / Virus Database: 268.17.31/676 - Release Date: 2/8/07