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#1
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On Thu, 13 Jan 2005 16:56:41 -0800, Frank Gilliland
wrote: On Thu, 13 Jan 2005 11:50:35 -0500, Vinnie S. wrote in : Hi. If I want to talk abrefoot and run a dipole for 27 MHz in my attic, I noticed there are numerous versions. The vertical is out for obvious reasons. So there are inverted and horizontal. Is there any version I am better off using barefoot? Vinnie S. Barefoot or not, an attic is probably the worst place to put an antenna. You have all kinds of possible problems, not the least of which is house wiring or foil-backed insulation that can cause reflections (high SWR). There is also the issue of polarity. Almost all mobile CB antennas are vertical so don't expect strong signals from a horizontal antenna, or even an inverted-V which is largely horizontal. You might get some skip but that depends a lot on the position of the antenna -- you might have to rotate your house to align yourself with the traffic. I would think your best solution is to buy a cheap antenna tuner and load up the flag pole, rain gutter, drip-strip, sewer vent, aluminum siding, chain-link fence, steel shed..... whatever works best. Vinnie; You said you lived on a ranch? Use Franks tuner idea, run a wire out the window and tie the other end to a fence post, your wifes clothes line pole or anything else above eye level. |
#2
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On Fri, 14 Jan 2005 01:45:00 GMT, Lancer wrote:
Barefoot or not, an attic is probably the worst place to put an antenna. You have all kinds of possible problems, not the least of which is house wiring or foil-backed insulation that can cause reflections (high SWR). There is also the issue of polarity. Almost all mobile CB antennas are vertical so don't expect strong signals from a horizontal antenna, or even an inverted-V which is largely horizontal. You might get some skip but that depends a lot on the position of the antenna -- you might have to rotate your house to align yourself with the traffic. I would think your best solution is to buy a cheap antenna tuner and load up the flag pole, rain gutter, drip-strip, sewer vent, aluminum siding, chain-link fence, steel shed..... whatever works best. Vinnie; You said you lived on a ranch? Use Franks tuner idea, run a wire out the window and tie the other end to a fence post, your wifes clothes line pole or anything else above eye level. I don't have a clothesline. I am thinking about running it vertical up a tree, but would have to trench the coax. Also, I have ground hogs, moles, and rabbits everywhere. Won't they chew up the coax? Vinnie S. |
#3
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On Thu, 13 Jan 2005 21:09:37 -0500, Vinnie S.
wrote in : On Fri, 14 Jan 2005 01:45:00 GMT, Lancer wrote: Barefoot or not, an attic is probably the worst place to put an antenna. You have all kinds of possible problems, not the least of which is house wiring or foil-backed insulation that can cause reflections (high SWR). There is also the issue of polarity. Almost all mobile CB antennas are vertical so don't expect strong signals from a horizontal antenna, or even an inverted-V which is largely horizontal. You might get some skip but that depends a lot on the position of the antenna -- you might have to rotate your house to align yourself with the traffic. I would think your best solution is to buy a cheap antenna tuner and load up the flag pole, rain gutter, drip-strip, sewer vent, aluminum siding, chain-link fence, steel shed..... whatever works best. Vinnie; You said you lived on a ranch? Use Franks tuner idea, run a wire out the window and tie the other end to a fence post, your wifes clothes line pole or anything else above eye level. I don't have a clothesline. I am thinking about running it vertical up a tree, but would have to trench the coax. You wouldn't even need coax. Just hook the tuner right to the radio, ground the radio, and run a single wire out the wall (through an insulator) to any large metal object you can find, attached to your house or not. I like metal drip-strips because they circle the entire roof and make dandy antennas for quick-n-dirty installations. The problem with a horizontal dipole, as I mentioned before, is the polarity of the antenna. Most CB antennas are vertical, and if your's is horizontal you won't hear very many people and they won't hear you. So if you are determined to use the attic, find the tallest mobile antenna that will fit straight up in your attic and bolt it to the floor. Then make a ground plane by running many wires out in every direction, and as far as you have the space (or wire). Connect the antenna to the center of the coax, and the ground plane to the shield. If everything goes well your SWR should be around 1.5:1 to 2:1, which is fine because you won't be able to get it any lower without losing signal. Also, I have ground hogs, moles, and rabbits everywhere. Won't they chew up the coax? If you leave them on or under the ground, yep. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- |
#4
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On Thu, 13 Jan 2005 21:09:37 -0500, Vinnie S.
wrote in : On Fri, 14 Jan 2005 01:45:00 GMT, Lancer wrote: Barefoot or not, an attic is probably the worst place to put an antenna. You have all kinds of possible problems, not the least of which is house wiring or foil-backed insulation that can cause reflections (high SWR). There is also the issue of polarity. Almost all mobile CB antennas are vertical so don't expect strong signals from a horizontal antenna, or even an inverted-V which is largely horizontal. You might get some skip but that depends a lot on the position of the antenna -- you might have to rotate your house to align yourself with the traffic. I would think your best solution is to buy a cheap antenna tuner and load up the flag pole, rain gutter, drip-strip, sewer vent, aluminum siding, chain-link fence, steel shed..... whatever works best. Vinnie; You said you lived on a ranch? Use Franks tuner idea, run a wire out the window and tie the other end to a fence post, your wifes clothes line pole or anything else above eye level. I don't have a clothesline. I am thinking about running it vertical up a tree, but would have to trench the coax. You wouldn't even need coax. Just hook the tuner right to the radio, ground the radio, and run a single wire out the wall (through an insulator) to any large metal object you can find, attached to your house or not. I like metal drip-strips because they circle the entire roof and make dandy antennas for quick-n-dirty installations. The problem with a horizontal dipole, as I mentioned before, is the polarity of the antenna. Most CB antennas are vertical, and if your's is horizontal you won't hear very many people and they won't hear you. Vinnie, don't use a tuner if you don't know WTF you're doing, you'll be constantly throwing carriers yelling AAUDDIOO whistling into the mike trying to get 1:1, a real pain in the ass for anyone trying to use the CB in your area. Forget about radials in the attic, you'll screw it up, stop trying to get cute, JUST BUY A NORMAL CB ANTENNA AND PUT IT OUTSIDE, YOU F-ING MAROON. |
#6
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#8
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On Fri, 14 Jan 2005 07:21:36 GMT, wrote:
On Fri, 14 Jan 2005 05:18:49 GMT, wrote in : snip Vinnie, don't use a tuner if you don't know WTF you're doing, The guy want's the most bang for his buck, and he can do that with an antenna tuner. It will probably cost him a whole $20 and it doesn't take a college degree to operate -- jeez, it's only three knobs. And even if you don't know what you are doing you can usually fiddle with it long enough to tune in a good match to just about anything, even a bed spring. you'll be constantly throwing carriers yelling AAUDDIOO whistling into the mike trying to get 1:1, a real pain in the ass for anyone trying to use the CB in your area. Forget about radials in the attic, you'll screw it up, stop trying to get cute, JUST BUY A NORMAL CB ANTENNA AND PUT IT OUTSIDE, YOU F-ING MAROON. If you get that upset about such a trivial issue then maybe you should look for a stress management support group in your area. Antenna tuner loading his rain gutters? Chances are good he'll be into all the electronic devices in his house. OK, he doesn't live in a house, it's a RANCH, so all his cowboy buddies in the bunkhouse will hear him on their TVs and stereos. Where do you think I live? It'll get into the phones too. And if he starts keyclowning with that setup it'll be 100 times worse. What's wrong with a NORMAL cb antenna designed for plug and play? Get him messing with RF grounds and radials and such and he's headed for disaster. I predict. Which part of "running barefoot", did you not understand? Vinnie S. |
#9
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Frank Gilliland wrote:
On Fri, 14 Jan 2005 05:18:49 GMT, wrote in : snip Vinnie, don't use a tuner if you don't know WTF you're doing, The guy want's the most bang for his buck, and he can do that with an antenna tuner. It will probably cost him a whole $20 and it doesn't take a college degree to operate -- jeez, it's only three knobs. And even if you don't know what you are doing you can usually fiddle with it long enough to tune in a good match to just about anything, even a bed spring. you'll be constantly throwing carriers yelling AAUDDIOO whistling into the mike trying to get 1:1, a real pain in the ass for anyone trying to use the CB in your area. Forget about radials in the attic, you'll screw it up, stop trying to get cute, JUST BUY A NORMAL CB ANTENNA AND PUT IT OUTSIDE, YOU F-ING MAROON. If you get that upset about such a trivial issue then maybe you should look for a stress management support group in your area. The ****nut uses aol, internet for cock sucking retards. |
#10
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Frank Gilliland wrote:
On Fri, 14 Jan 2005 05:18:49 GMT, wrote in : snip Vinnie, don't use a tuner if you don't know WTF you're doing, The guy want's the most bang for his buck, and he can do that with an antenna tuner. It will probably cost him a whole $20 and it doesn't take a college degree to operate -- jeez, it's only three knobs. And even if you don't know what you are doing you can usually fiddle with it long enough to tune in a good match to just about anything, even a bed spring. you'll be constantly throwing carriers yelling AAUDDIOO whistling into the mike trying to get 1:1, a real pain in the ass for anyone trying to use the CB in your area. Forget about radials in the attic, you'll screw it up, stop trying to get cute, JUST BUY A NORMAL CB ANTENNA AND PUT IT OUTSIDE, YOU F-ING MAROON. If you get that upset about such a trivial issue then maybe you should look for a stress management support group in your area. The ****nut uses aol, internet for cock sucking retards. Notice who started with the gay **** right away -- steveo, he's an angry little man LLOL |
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