Is there a way to select filter via the serial port on the Omni VI with the upgrade ROM? The instruction book does not indicate such a feature, but perhaps there has been a change that I missed. 73, Jan, KX2A -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: owner-tentec@contesting.com