I have a question, the swr on my base radio has changed after installing a UHF lighting arrestor in line on my antenna cable (rg58) at the antenna mast. It has gone from 1.5 to 2.4. I double checked my fittings ( installed pl259 solder/crimp connectors ) for continuity with my multi meter which gave me a reading of 002 . A very slight bit of resistance . I did the same check on both sections of cable with the same readings. The arrestor is designed for uhf, it's the gas cartridge type ,I have a ground wire ran from it to a common ground stake where several other antenna are grounded. I know an swr of 2.4 isn't the end of the world,but I'm at a loss as to the increase.