Hi guy's! New to this forum. From my Username, figure I'm a Ham radio operator. I'm no new-be to antennas and radios... very good with those... till today! As I'm going to be a radio / vehicle Marshall at a 4x4 event, I fitted a 29 Mhz radio to my car. I got with the radio a 29 Mhz Magnetic mount antenna... SWR 1.8 or almost 2. horrible... removed my 2 meter antenna from the roof... removed the magnet and mounted the antenna directly on the roof.
I know its a DC ground antenna as you get that typical "short" testing the feed line on the PL259. Without the coil and antenna and testing on the base, perfect. So the PL259 and base is perfect... BUT I still have the high SWR reading... I like under 1.5!
Obviously I started with the whip... going longer and/or shorter. Guess what... the lowest reading I get is 1.8!
Its a decent REVEX SWR meter 1.8 -200 Mhz that I use all the time. If it was possible to "strip" the base, without breaking it, I could have just removed the 2N 130K component... and make the antenna Non DC grounded... or just regular.
In short... Why cant I get that SWR 1:2:1 ? Maybe is a CB antenna? Whip should then just go shorter for 29 Mhz?
I know its a DC ground antenna as you get that typical "short" testing the feed line on the PL259. Without the coil and antenna and testing on the base, perfect. So the PL259 and base is perfect... BUT I still have the high SWR reading... I like under 1.5!
Obviously I started with the whip... going longer and/or shorter. Guess what... the lowest reading I get is 1.8!
Its a decent REVEX SWR meter 1.8 -200 Mhz that I use all the time. If it was possible to "strip" the base, without breaking it, I could have just removed the 2N 130K component... and make the antenna Non DC grounded... or just regular.
In short... Why cant I get that SWR 1:2:1 ? Maybe is a CB antenna? Whip should then just go shorter for 29 Mhz?