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#1
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![]() "Adair Witner" wrote in message m... You might want to try a 1/2 antanna which does not require a ground Adair "James" wrote in message . .. I want to mount a 2 meter rig on my Honda Foreman ATV. I want a high-gain antenna, either a 5/8 wave or possibly a collinear. I would like to stay around 4 to 5 feet in length, but it is possible that a collinear would be longer. Any recommendations on this ? I know that an atv would not provide much of a ground plane, so I think a 1/4 wave would be out of the question. Any recommended "type" (wavelength, etc) and brand for this use ? Thanks for any comments !! 73 de Jim K4PYT You are going to need something rugged if you are out in the woods. I made a J antenna from a couple of old CB SS whips many years ago. I drilled a block of metal with 3 holes 2 on 1 side and 1 on the other to fit the threads on the antennas. The 2 holes on one side got the 3/4 wl and the 1/4wl section the hole on the other side mated with a big spring mount. I believe this was modeled after the Super J as seen in the ARRL handbook. This antenna mounted on a VW dune buggy survived contact with many overhanging branches. This antenna got out a lot better than the 1/4wl antenna it replaced. I think this was mostly due to its added hiegth rather than any significant increase in gain. |
#2
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Try Larsen antennas, their "OM" series of mobiles
1/2 wavelength, are end loaded-- Ideal for fiberglass , and low amounts of metal. Works great on Broncos, and Blazers, and other non-metal frames! try http://www.radialllarsen.com/docfiles/ASB7/Pages/72.pdf Jim NN7K Jimmie D wrote: "Adair Witner" wrote in message m... You might want to try a 1/2 antanna which does not require a ground Adair "James" wrote in message . .. I want to mount a 2 meter rig on my Honda Foreman ATV. I want a high-gain antenna, either a 5/8 wave or possibly a collinear. I would like to stay around 4 to 5 feet in length, but it is possible that a collinear would be longer. Any recommendations on this ? I know that an atv would not provide much of a ground plane, so I think a 1/4 wave would be out of the question. Any recommended "type" (wavelength, etc) and brand for this use ? Thanks for any comments !! 73 de Jim K4PYT You are going to need something rugged if you are out in the woods. I made a J antenna from a couple of old CB SS whips many years ago. I drilled a block of metal with 3 holes 2 on 1 side and 1 on the other to fit the threads on the antennas. The 2 holes on one side got the 3/4 wl and the 1/4wl section the hole on the other side mated with a big spring mount. I believe this was modeled after the Super J as seen in the ARRL handbook. This antenna mounted on a VW dune buggy survived contact with many overhanging branches. This antenna got out a lot better than the 1/4wl antenna it replaced. I think this was mostly due to its added hiegth rather than any significant increase in gain. |
#3
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![]() "Jim - NN7K" wrote in message et... Try Larsen antennas, their "OM" series of mobiles 1/2 wavelength, are end loaded-- Ideal for fiberglass , and low amounts of metal. Works great on Broncos, and Blazers, and other non-metal frames! try http://www.radialllarsen.com/docfiles/ASB7/Pages/72.pdf Jim NN7K Jimmie D wrote: "Adair Witner" wrote in message m... You might want to try a 1/2 antanna which does not require a ground Adair "James" wrote in message . .. I want to mount a 2 meter rig on my Honda Foreman ATV. I want a high-gain antenna, either a 5/8 wave or possibly a collinear. I would like to stay around 4 to 5 feet in length, but it is possible that a collinear would be longer. Any recommendations on this ? I know that an atv would not provide much of a ground plane, so I think a 1/4 wave would be out of the question. Any recommended "type" (wavelength, etc) and brand for this use ? Thanks for any comments !! 73 de Jim K4PYT You are going to need something rugged if you are out in the woods. I made a J antenna from a couple of old CB SS whips many years ago. I drilled a block of metal with 3 holes 2 on 1 side and 1 on the other to fit the threads on the antennas. The 2 holes on one side got the 3/4 wl and the 1/4wl section the hole on the other side mated with a big spring mount. I believe this was modeled after the Super J as seen in the ARRL handbook. This antenna mounted on a VW dune buggy survived contact with many overhanging branches. This antenna got out a lot better than the 1/4wl antenna it replaced. I think this was mostly due to its added hiegth rather than any significant increase in gain. here my antanna in my back yard http://i70.photobucket.com/albums/i9...sjunkyyard.jpg -- Posted via a free Usenet account from http://www.teranews.com |
#4
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![]() wrote in message ... On Tue, 21 Nov 2006 16:06:53 -0500, "an old fiend" wrote: "Jim - NN7K" wrote in message 1/4wl antenna it replaced. I think this was mostly due to its added hiegth rather than any significant increase in gain. here my antanna in my back yard http://i70.photobucket.com/albums/i9...sjunkyyard.jpg more fraud on your part http://kb9rqz.blogspot.com/ id cime is da teft gte hep http://i70.photobucket.com/albums/i9...sjunkyyard.jpg -- Posted via a free Usenet account from http://www.teranews.com |
#5
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![]() "James" wrote in message . .. I want to mount a 2 meter rig on my Honda Foreman ATV. I want a high-gain antenna, either a 5/8 wave or possibly a collinear. I would like to stay around 4 to 5 feet in length, but it is possible that a collinear would be longer. Any recommendations on this ? I know that an atv would not provide much of a ground plane, so I think a 1/4 wave would be out of the question. Any recommended "type" (wavelength, etc) and brand for this use ? Thanks for any comments !! 73 de Jim K4PYT here my antanna inmy back yard. http://i70.photobucket.com/albums/i9...sjunkyyard.jpg -- Posted via a free Usenet account from http://www.teranews.com |
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