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#41
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In article ,
"Doug Dotson" wrote: I supose that one could make a trap-vertical to avoid a tuner, but I've never seen one for marine bands. I do recall a version of the OutBacker that was for marine use but have never known anyone that had one. Doug, k3qt s/v Callista Morad Electronics of Seattle has been making Trapped Verticles for 4-22Mhz for years. They were pioneered by Ed Zanbergen back in the late 60's, and have been a fixture in the North Pacific Commercial Fleet ever since. Bruce in alaska -- add a 2 before @ |
#42
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Oh, I see. I barely fit under the 65' bridges much of the time. Even twang
the VHF antenna on occation. Don;t think that solution would work well for me. Doug s/v Callista "Bruce in Alaska" wrote in message ... In article , "Doug Dotson" wrote: A 50' to 75' whip on any boat would be a problem. A backstay is not a whip. Doug, what I was talking about was a backstay that feed a whip side mounted to the top of the mast. that way a 35' backstay feeding a 28' whip would be 60+ft electrical antenna. Bruce in alaska -- add a 2 before @ |
#43
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But are the traps tuned for the marine bands? I've had many trap
verticals for ham bands and trap dipoles as well. Doug, k3qt s/v Callista "Bruce in Alaska" wrote in message ... In article , "Doug Dotson" wrote: I supose that one could make a trap-vertical to avoid a tuner, but I've never seen one for marine bands. I do recall a version of the OutBacker that was for marine use but have never known anyone that had one. Doug, k3qt s/v Callista Morad Electronics of Seattle has been making Trapped Verticles for 4-22Mhz for years. They were pioneered by Ed Zanbergen back in the late 60's, and have been a fixture in the North Pacific Commercial Fleet ever since. Bruce in alaska -- add a 2 before @ |
#44
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"Bruce in Alaska" wrote in message ... In article , "Doug Dotson" wrote: I supose that one could make a trap-vertical to avoid a tuner, but I've never seen one for marine bands. I do recall a version of the OutBacker that was for marine use but have never known anyone that had one. Doug, k3qt s/v Callista Morad Electronics of Seattle has been making Trapped Verticles for 4-22Mhz for years. They were pioneered by Ed Zanbergen back in the late 60's, and have been a fixture in the North Pacific Commercial Fleet ever since. Bruce in alaska -- add a 2 before @ Bruce, You beat me to it. I had time to go to the Morad site today, only to find it is down to a one page "under construction" page right now. While referencing their sales literature in our files, I was called out on a repair, so I didn't have time to post here until now. I did not see the trap marine band vertical in their current price sheet, but I bet they still make them. You can't go into a commercial fishing port in the Pacific NW without seeing a least one, and sometimes three Morad trap vertical antennas, some with capacity hats on the fishing boats. They make an excellent VHF marine antenna also, and even a 2 meter ham band variation. This is also a commercial fishing and tug boat standard in this area. It mounts on a 1" OD pipe and is very rugged. Definitely a step up from fiberglass recreational boat whips. Doug K7ABX |
#45
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SOunds like a step up since there are no fiberglass trap verticals
for recreational boats as far as I can tell. Doug, k3qt s/v Callista "Doug" wrote in message hlink.net... "Bruce in Alaska" wrote in message ... In article , "Doug Dotson" wrote: I supose that one could make a trap-vertical to avoid a tuner, but I've never seen one for marine bands. I do recall a version of the OutBacker that was for marine use but have never known anyone that had one. Doug, k3qt s/v Callista Morad Electronics of Seattle has been making Trapped Verticles for 4-22Mhz for years. They were pioneered by Ed Zanbergen back in the late 60's, and have been a fixture in the North Pacific Commercial Fleet ever since. Bruce in alaska -- add a 2 before @ Bruce, You beat me to it. I had time to go to the Morad site today, only to find it is down to a one page "under construction" page right now. While referencing their sales literature in our files, I was called out on a repair, so I didn't have time to post here until now. I did not see the trap marine band vertical in their current price sheet, but I bet they still make them. You can't go into a commercial fishing port in the Pacific NW without seeing a least one, and sometimes three Morad trap vertical antennas, some with capacity hats on the fishing boats. They make an excellent VHF marine antenna also, and even a 2 meter ham band variation. This is also a commercial fishing and tug boat standard in this area. It mounts on a 1" OD pipe and is very rugged. Definitely a step up from fiberglass recreational boat whips. Doug K7ABX |
#46
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In article ,
"Doug Dotson" wrote: But are the traps tuned for the marine bands? I've had many trap verticals for ham bands and trap dipoles as well. Doug, k3qt s/v Callista "Bruce in Alaska" wrote in message ... In article , "Doug Dotson" wrote: I supose that one could make a trap-vertical to avoid a tuner, but I've never seen one for marine bands. I do recall a version of the OutBacker that was for marine use but have never known anyone that had one. Doug, k3qt s/v Callista Morad Electronics of Seattle has been making Trapped Verticles for 4-22Mhz for years. They were pioneered by Ed Zanbergen back in the late 60's, and have been a fixture in the North Pacific Commercial Fleet ever since. Bruce in alaska -- add a 2 before @ Oh yea, they are specific for the Marine Bands. These were designed specifically for use on Maritime Mobile Frequencies in the HF range. While Eddie Zanbergen was alive, he was one of the worlds formost Marine Antenna System Designers. He also build special versions of most of his popular Marine Antennas, for the Ham market as well, but most hams wouldn't pay the price for a commercial grade antenna, so they were custom built on demand. I have a bunch of these special antennas, that Ed built for me, that I have never had a place to install, but when I finish my Retirement House, they will all be part of the antenna array that goes along with that project. Morad still makes the VHF-HD10db Base Stataion Antenna in both Marine and Ham versions. This antenna is the STANDARD throught the North Pacific for Coast Stations and Vessels over 60 Ft. You will not find any other antenna on 99% of the Bering Sea Crab Fleet, as they need the MOST Rugged, and Weather Resistant Antenna available. This one is the REAL DEAL. I have seen Super Station Masters, twisted up like a Pretzel and a Morad still standing on the same tower, after a 130 Kt wind storm. Bruce in alaska -- add a 2 before @ |
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