Don't know what engine you have in the fire truck but Detroit had a problem several years ago with their DDEC ECM radiating spurs. Look in the 30-50 MHz range with your analyzer and see if you have spikes every MHz or so.
Detroit replaced the ECM under warranty and the problem disappeared for us. E-mail me direct if you need more info. Andy -------------------------------------------------------------- NC Certified Firefighter III / Instructor II / EMT-A FCC Licensed Technician / Amateur Call NC4AB / Echolink Node 5761 http://www.brinkleyelectronics.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
