We had thousands of 1/2" hardline jumpers connected to antennas at my last job. It was the standard to use 1/2" LDF4-50A for the jumper.
Joe MCH wrote: > To reduce vibrations from the antenna being conducted to the feedline. > As it's not flexible, it will crack and/or break. I've also seen cases > where the antenna connector was vibrated right out of the antenna. > > Adding the flexible jumper acts as a 'shock absorber' and absorbs any > vibrations. > > That's why they include jumpers with commercial antennas. > > Joe M. > > Joe wrote: > >> OK, why? I've had this argument before......Joe >> >> MCH wrote: >> >>> Hardline/Heliax should *never* be connected directly to an antenna. >>> ALWAYS use a jumper. >>> >>> Joe M. >>> >>> >> >> ------------------------------------ >> >> >> >> Yahoo! Groups Links >> >> >> >> >> ------------------------------------------------------------------------ >> >> >> Internal Virus Database is out of date. >> Checked by AVG - www.avg.com >> Version: 8.5.387 / Virus Database: 270.13.38/2274 - Release Date: 07/31/09 >> 05:58:00 >> >> > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > >
