Update: Our test model dipole out preformed our colliner 8db in range and also brown spots. 80% less spotting while driving. Later that same night we was able to hit some atmosphere ducting and communicated with a repeater 150+ miles away! Please feel free to message us! Vertically polarizedfolded dipole array with good static protection as array is showing DC shortconnections inside dipoles and harness joints are sealed with high quality sealantstainless steel U boltsTechnical parameters:lenght app 480cm with spacing of 0,78 x Lambdaspacing for 140Mhz is 161cmGain 7-9Dbd depending on spacingSwr at 140mhz 1.1:1 center. The item "VHF 500watt 4 Bay Folded Dipole Antenna Repeater Airband 2meter MURS Marine Rail" is in sale since Saturday, January 27, 2018. This item is in the category "Consumer Electronics\Radio Communication\Antennas\Ham, Amateur Radio Antennas". The seller is "scott46953" and is located in Marion, Indiana. This item can be shipped worldwide.