Tram 1191 50-Watt Pretuned Dual-Band 144 MHz to 148 MHz VHF/440 MHz to 450 MHz UHF Amateur Radio Antenna Kit with Glass Mount and Cable

Great performance with SWR of 1.5:1 or less on both bands. This is easily adjustable. Directions good and installation was straightforward. Purchased second antenna for another vehicle and recommend it for a no hole mount application.

Installation -- I had never tried a thru-the-glass antenna feed before, and was a little skeptical. With my previous car I was able to use a trunk lid mount, and there was enough give in the rubber window insulation to get a coax through. But with my Camry it just didn't look like that would work with my trunk mount adapter, without damaging the car when opening the trunk. Hence the thru-the-glass mount. Before purchasing, I watched a couple of videos others had posted about the installation process, which were helpful. I followed the advice of one poster who suggested using some silicone sealant about the edges of the external glass surface, masking it with tape so it looks decent. I don't know if the sealant was necessary or not, but it looks good, and seems pretty solid. I'll know in a year or two if it might have helped keep the window adhesive strong. The supplied coax was plenty long to snake the cable down next to the rear seat back, and under the car's carpet to the car's center console, where my dual band radio is located. The antenna ended up on a bit of a slope, because of the car's geometry. But the fact that it's not perfectly vertical doesn't seem to be a significant issue so far.Performance -- I have a network analyzer (NanoVNA) which I used to measure the antenna's impedance, and I think it looks pretty good. I included photos of the VNA's screen for SWR and Smith Chart plots for both the 144-148MHz. band and the 420-450MHz. band. The little tuning screw seemed to be in a pretty good position as it came from the factory. The worst case SWR for the 2M band was under 2.2:1, and for the 70CM band it was under about 2.5:1. I haven't given it much on-the-air testing, but I have had no trouble hitting repeaters in our valley, 20+ miles away. So I think it will be a successful result. A good alternative to drilling holes, or opening the window with a mag mount.

I have had 2/440 mobile antennas for decades and a long time ago had a glass mount. For a variety of reasons with my current SUV I decided to go with a glass mount. This one arrived today and took me less than 15 minutes to install. SWR without adjustment was acceptable on both bands. Using the supplied adjustment tool I got the SWR down to 1.1:1 in the center of both bands. Hit repeaters on 2 M 40 miles away. Just for the heck of it I used it with my VHF public safety radio (which I am authorized to use). SWR under 2.1:1 at 154 MHz and I'm sure I could have adjusted that down some. I will be ordering another for the PS radio N7WR

First installed it straight up vertical, but after SWR adjustment never perfect, leaned approx.. 10 degrees off vertical, I then was able to tune perfect with resonant 146.400. Transmit was great, Rx horrible, static, bacon frying. Started return process. Old timer said all my car's computers were the problem. After the (4) ferrite clip on coax beads, (see photos) Rx is great, Stopped the return, keeping it. Great conversation piece, What's That? they ask. Order your ferrite beads pack of 10 or so. I was going to trim to fit but warranty issue. I like it.

Updated 1 star review 1/2/21: This antenna didn't last 1 year. Don't get me wrong, it worked great all summer. I was very nice to it, this car doesn't go out on trails or anything, it goes back and forth to work on smooth city streets. The antenna worked fine all summer, then when winter came, the first big snow we had, I bumped it with my snow brush. Not even hard, I was shocked when the thing broke off. Looks like it's not made of a good solid metal, but instead it looks like what's known as pot-metal. I can't believe such a structural piece as the mounting bracket, was made from pot-metal. I'm looking into a manufacturer warranty now.I bought two of these, the other one is still holding up, however that car hardly gets driven anymore.It may work fine for you, or it may fail right away. Your choice, buyer beware.Old 5 star review 2/20/20:Installed this on my 04 Buick. I was gonna put it in place of the old onstar antenna, but upon closer inspection of the instructions, the inside module has to be placed in a specific orientation, with the TNC on the right. So I put it on the other side of the window, so the coax could be easily hidden in the trim.It's all set up and working great. I was able to avoid the defrost lines, but decided to go through the black frosted shade lines because the old onstar antenna went through them just fine. And it works!Lowest SWR is 1.13:1 on 2m. The 70 is a little worse, about 2:1+ on everything lower than 445MHZ, but drops steeply when you get closer to 450MHz+. Could be worse, I've still gotten into a 70cm repeater 15 miles away on flat ground, it was crystal clear, and I haven't tested it further yet. I'll try to upload a picture of the 70cm SWR graph, I forget to take one.

I wanted a permanent antenna on my SUV bit didn't want to drill a hole nor squash coax with a car door. I found the right spot was on the little window behind the rear seat, It was just big enough for the inside mounting and the counterpoise. I suggest you take your time and use a level tool to get it lined up before doing any mounting work. It's really simple but you can screw it up and once you stick it on the glass it's not coming off.OK, it's on the glass and time for checking SWR. I had a 1.8:1 but it adjusted to 1.2:1 using a Stick230 and the little plastic gizmo (screw driver) that comes with the antenna. READ THE DIRECTIONS

Cette antenne est tres performente a comparé a d'autre antenne .Le coax est en dedant du vehicule pas de bris l'hiver.Moi je suis un réparateur de radio vhf uhf,je recommande fortement cette antenne a 100%.

Installed on a 2021 Mazda cx-30 . Low SWR, Works great.

merci