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3/8x24 2 meter mobile
On Thursday, January 30, 2014 2:03:04 PM UTC-6, Ralph Mowery wrote:
The antennas you have to start with are almost the opposit of what you want to do. The ones you have are physically too short to be a 1/4 wave on the low bands and need lots of wire to make up the differance. When used on 2 meters and above it is easy to go over 1/4 wave and still mout them on a car. You may get some gain by doing this. To use the whips that have wire wrapped around it for several feet on 2 meters, you will need to strip off all the old wire and just run a single wire up the whip and put just a few turns around the bottom to match it. Always fun to expirment with what you have. The glass whips do make a handy platform which is light. All of my HF mobile antennas are plastic bugcatchers built from various fire sticks, ham sticks, etc. My main version is center loaded and 11 ft tall counting the 5 ft whip attached to the 6 ft glass stick. When parked, I can also add a solid 3 ft hustler mast below the glass stick to raise the coil level to 8 ft, and a total of 14 ft tall. Works all bands 80-10, and on the higher bands, I use shorter "stinger" whips with the coil bypassed with a jumper. What is handy is I get bugcatcher performance with a much lower weight, which makes it a lot easier to mount and use. I've built the exact 2m 5/8 whip that I earlier described using a glass whip. and is still around somewhere.. If I can find it, it would tell me exactly how many turns the loading coil was on the one I built. I remember on mine, the glass whip was a tad bit short, and I had to add a short stinger to the top to get the full 5/8 wave. I used it on the back of a Honda Accord for a while.. I've still been too chicken to drill any holes in my newer Toyota, and haven't run any radios from it yet. If I want to run mobile, I have to use one of my old trucks. :| |
#2
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3/8x24 2 meter mobile
wrote in message ... On Thursday, January 30, 2014 2:03:04 PM UTC-6, Ralph Mowery wrote: I've still been too chicken to drill any holes in my newer Toyota, and haven't run any radios from it yet. If I want to run mobile, I have to use one of my old trucks. I have seen some clever mounts that slide into a trailer receiver. Some home brew, some commercial. "Sal" |
#3
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3/8x24 2 meter mobile
On Friday, January 31, 2014 3:34:25 PM UTC-6, Sal M. O'Nella wrote:
wrote in message ... On Thursday, January 30, 2014 2:03:04 PM UTC-6, Ralph Mowery wrote: I've still been too chicken to drill any holes in my newer Toyota, and haven't run any radios from it yet. If I want to run mobile, I have to use one of my old trucks. I have seen some clever mounts that slide into a trailer receiver. Some home brew, some commercial. "Sal" There isn't much way to attach one of those on that car. There is no real bumper per say, and underneath is just trunk floor, which doesn't look too strong. But even if I could do it, I'm not sure I would bother. Hitch mounts are a horrible place to mount as far as performance. I've pretty much given up trying to do anything with that car. If I really had to have it, I'd drill a hole in the truck like I did the Accord. But I found with that car, after a period of using the antennas, the flexing and such sort of warped the trunk lid a bit around the hole. And that was with it reinforced underneath with a steel plate. I don't want to risk that with this one. I'd pondered maybe using a trunk lip mount, but even that makes me nervous. |
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