Ok... here is my 2 cents worth.... My call is VE6FRM or VE6UBG. First I too like the use of APRS / 2m /440 and tend to use 6 m periodically....
I initially placed a larsen glass mount on my smart. During the winter I got the darndest thing happening.... every time the radio keyed up, the tire pressure indicator light lit. I checked the match, and it did not seem to make a darn bit of difference..... so after a month or two of pressing the reset button on the dash for the pressure indicator, I got miffed.
The larsen was a decent dual band antenna.... and I still use one on my Envoy, but there had to be a solution... and a way to get my 6 m rig working as well.
Enter the mother of invention.... and a general need for a better ground plane.
I looked at the mounts that I saw here on the forum, and really thought to myself that they were either "precarious" or cumbersome. The mount on the hatch would not suit my needs as I do park in a fairly low garage, and I am forever throwing stuff in and out of the back area.
I did not like the idea of trying to drill into the chasis for any reason... mostly cuz this thing is way too neat to start drilling holes.
So I thought for a while... and looked for a long while.
HEY the main chasis is metal! Why not use holes that are already there..... the tow hitch plugs pop in and out and expose a decent block of metal! I simply went to a local metal supply house, bought a 4' piece of ready rod and a few nuts.... bent a peice of flat iron and drilled a couple of holes in the bent iron. The washer you see is NOT pressing on the plastic, it is a spacer for a piece of tubing that keeps the inside threads tight and clean.
Now I have my aprs, 6m, 2m and 440.... one antenna... a tri band fold over from maldol / comet...
No more hassles with "idiot lights" even with 100 watts....
and the mount will probably take on an HF antenna as well...just watch the tip over factor if you add a 10 foot steel whip!
Is that a through-the-glass mount on the plastic roof? I am still debating a radio installation. Getting an antenna on would allow me to use my HT at the very least, and that would get me motivated to put the radio in.
I pulled away the headliner material to expose the bare inside of the roofI am a Ham (KE6VUP) and I'm trying to figure out how to install an antenna on a Smart cabrio. Maybe a mount on the side of the tridon cell? I have the 1216 reservation #, so I know it will be a while till I even get the car. Any of you lucky Europeans or Canucks have any ideas? Pictures of the area around the top of the cell area with the top down would help.