More ideas from Alex
A High Efficiency Extended Length Mobile Antenna

By I originally wanted an antenna that would not hit everything overhead while driving, since it was to be installed on a van. I came up with an antenna that extended only meters or

DIY subwoofer and midbass modules with TC Sounds LMS Ultra 5400 and JBL 2226

2 way DIY subwoofer and midbass module project with four TC Sounds LMS Ultra 5400 drivers and four JBL 2226 drivers in separate sealed enclosures.