Another thing to check is the antenna trimer. Its shaft is live to AGC. Thats why the isulated bushings are important. Spraying with even a slightly conductive lubricant is bad news. 73 de Gord, VE3EOS -- Gordon L. Hayward, Ph.D., P.Eng., Associate Professor, Biological Engineering, School of Engineering, University of Guelph, Guelph, Ontaro, N1G 2W1.