[amsat-bb] Re: Fibreglass tube for G5500?
Hi all, Thank you all very much for your input and as expected the aluminium pole isn't an option, so I am going down the route of fibreglass tube with wood insert. Just need to source a UK company that can supply the tubing! I have contacted Engineering Composites and will await a price! All the best! Chris - M0DQO FUNcube Educational Outreach :) www.funcube.org.uk www.projectoscar.co.uk Sent from my iPhone On 22 Aug 2011, at 16:28, Alan P. Biddle apbid...@united.net wrote: Chris, As has been pointed out, an aluminum liner won't work. I have a fiberglass tube, and found a solid wood rod at a local building supply store. It is a perfect friction fit. I cut it about 2 inches shorter than the tube, leaving about an inch space at each end. I stood it on end, and filled one end with RTV. After it hardened, I swapped ends and sealed the other end. It has been in use for almost 15 years with no failures or leakages. 73s, Alan WA4SCA ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Fibreglass tube for G5500?
Chris Haydon Communications stock (or at least did stock) various diameters/lengths. Howard Sent from my iPhone On 23 Aug 2011, at 08:03, Chris Bloy ch...@photofuture.co.uk wrote: Hi all, Thank you all very much for your input and as expected the aluminium pole isn't an option, so I am going down the route of fibreglass tube with wood insert. Just need to source a UK company that can supply the tubing! I have contacted Engineering Composites and will await a price! All the best! Chris - M0DQO FUNcube Educational Outreach :) www.funcube.org.uk www.projectoscar.co.uk Sent from my iPhone On 22 Aug 2011, at 16:28, Alan P. Biddle apbid...@united.net wrote: Chris, As has been pointed out, an aluminum liner won't work. I have a fiberglass tube, and found a solid wood rod at a local building supply store. It is a perfect friction fit. I cut it about 2 inches shorter than the tube, leaving about an inch space at each end. I stood it on end, and filled one end with RTV. After it hardened, I swapped ends and sealed the other end. It has been in use for almost 15 years with no failures or leakages. 73s, Alan WA4SCA ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Fibreglass tube for G5500?
Hi Cris There is an additional benefit with Fibreglass tube. Just use the wood inserts on the clamping areas, rotator and antenna clamps. Then the tube will flex in high winds and absorb some wind enegy. 73 John G7HIA From: Howard Long how...@howardlong.com To: Chris Bloy ch...@photofuture.co.uk Cc: Amsat - BBs amsat-bb@AMSAT.Org Sent: Tuesday, 23 August, 2011 8:24:38 Subject: [amsat-bb] Re: Fibreglass tube for G5500? Chris Haydon Communications stock (or at least did stock) various diameters/lengths. Howard Sent from my iPhone On 23 Aug 2011, at 08:03, Chris Bloy ch...@photofuture.co.uk wrote: Hi all, Thank you all very much for your input and as expected the aluminium pole isn't an option, so I am going down the route of fibreglass tube with wood insert. Just need to source a UK company that can supply the tubing! I have contacted Engineering Composites and will await a price! All the best! Chris - M0DQO FUNcube Educational Outreach :) www.funcube.org.uk www.projectoscar.co.uk Sent from my iPhone On 22 Aug 2011, at 16:28, Alan P. Biddle apbid...@united.net wrote: Chris, As has been pointed out, an aluminum liner won't work. I have a fiberglass tube, and found a solid wood rod at a local building supply store. It is a perfect friction fit. I cut it about 2 inches shorter than the tube, leaving about an inch space at each end. I stood it on end, and filled one end with RTV. After it hardened, I swapped ends and sealed the other end. It has been in use for almost 15 years with no failures or leakages. 73s, Alan WA4SCA ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Fibreglass tube for G5500?
- Original Message - From: Chris Bloy ch...@photofuture.co.uk To: amsat-bb@amsat.org Sent: Monday, August 22, 2011 11:01 AM Subject: [amsat-bb] Fibreglass tube for G5500? Hi All, So, I was wondering, can I get say a 1 ½ fibreglass pole and then slip the slightly small aluminium pole inside to give extra strength without affecting the radiation pattern? Hi Chris,M0DQO You cannot because a fibreglass tubing fitted over an aluminium tubing is like to have a single aluminium tubing and the radiation pattern will be affected. I have google'd a couple of places and it appears I need to get tubing but not sure if anyone has any experience in this department? Read please the following article written by G6LVB http://www.g6lvb.com/fibermetalboom.htm Many Thanks, Chris - M0DQO 73 de i8CVS Domenico ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Fibreglass tube for G5500?
Chris, As has been pointed out, an aluminum liner won't work. I have a fiberglass tube, and found a solid wood rod at a local building supply store. It is a perfect friction fit. I cut it about 2 inches shorter than the tube, leaving about an inch space at each end. I stood it on end, and filled one end with RTV. After it hardened, I swapped ends and sealed the other end. It has been in use for almost 15 years with no failures or leakages. 73s, Alan WA4SCA ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
