Try replacing the antenna with a dummy load and recheck the swr. If it is good, then you have an antenna problem. I'm assuming you are checking the SWR after the duplexers ? Actually a directional watt meter may give you a better idea how it is working. N3FLR - Frank
On 5/24/2009 9:55 PM, agrimm0034 wrote: > Installed a new 6.5 db gain antenna on the GMRS band 462.6 Transmit input is > 40 watts. LMR 400 ultra low loss cable is being used. Antenna is installed on > 3 legged style tower at 40 ft up. SWR reading is 2.5 - 1 ratio. Antenna calls > for a DC ground for lightning protection and the tower is not grounded. If I > ground the tower will it lower the swr on the antenna? > > > > ---------------------------------- >
