Are the results of this calibration dependent upon the gain dialed in for the narrowest filter? The calibration is done with narrowest filter in place. 73 de Brian/K3KO -------------- next part -------------- No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 9.0.862 / Virus Database: 271.1.1/3178 - Release Date: 10/05/10 06:34:00