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April 8th 09, 04:01 PM
posted to rec.radio.amateur.antenna
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Phillystran guy cable material?
John Passaneau wrote:
MTV wrote: Any clues on how much better this nonmetallic guy material would be than equivalent wire rope? How much effect would it have on an HF yagi at the top of tower up 2-3' on a mast? Would it be worth an extra $50 plus special end kits? Also, should wire rope guys be insulated from attachment to the tower? This is my first tower, a Glen Martin w/Hazer. Marv W5MTV Hi Marv: The phillystran should be "transparent" to radio waves and should have no measurable effect on any antenna. Wire rope will have some effect on antennas. There was an report in QST some years back that had some measurements on the effects. You may be able to find it on the ARRL web site. I think the end kits are required to install Phillystran. I don't think you can use it just like wire rope. John Passaneau W3JXP Thanks! I'll check ARRL for a report. Marv |
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