OkieBoyKJ5JFG
Member
- Joined
- May 16, 2022
- Messages
- 166
I've been trying to find a 140/220/440 solution for my truck. The only decent ground plane on the entire vehicle is the roof, and I don't want to mount a really tall antenna on a roof that's already almost 7' above the ground. I have tested a few tri-band antennas on a mag mount on the roof, but the ones which gave me good SWRs and signal were all 36-52" tall. That's just too much for me. Others may have a different opinion; you do you. I saw a couple of good reviews for the 19" Metropolitan tri-band antenna and decided to roll the dice and order it. First, I put it on the NMO in the center of the roof of my Chevrolet Trax and SWRs were below 1.5:1 on 2m, 1.25m, 70cm, and even GMRS and MURS.
Okay, I'm impressed. I then put it on a mag mount on top of my truck with the same result. I don't know how they managed to make an antenna work on 5 bands, but that's pretty darned good. (Okay, I don't know if it truly "works" on GMRS or MURS, because it isn't designed for those bands, but at least the SWR is good, and it's probably better than a straightened coat hanger.) It doesn't seem to need a really large ground plane. I was able to get great readings with the mag mount positioned where I can easily reach it by standing on the running board, so it doesn't have to go all the way to the center of the roof. So, the truck is finally going to get an NMO on the roof and I'm going to order another Metropolitan for the car. On the car, I've been using an SB224 which also performs well on 4 bands (great SWR on MURS, but I haven't tested the signal), but it's twice as tall as the Metropolitan. The Metropolitan isn't even what I'd call very expensive. It's not a cheapie, but at a single Benjamin, I'm okay with it if it's the only antenna I need. The wait time is long -- I think I waited about 6 weeks -- but for now, the car is okay with the SB224.