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 Internal Virus Database is out of date.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 >
