[amsat-bb] Re: PVC
To add to the thread I have a friend who has a semi repair shop. He has run PVC through out the shop for compressed air. He puts 150 psi through the PVC for air tools. I have played with PVC for a 2mtr mast. It worked pretty well. I want to use it in smaller sections for my satellite antennas which I don't to put up very high until I learn about the whole operation then I will place it on a roof with better material. I have the Yaesu 5500 rotor and that thing to me is heavy to lug around. Once it is on a roof with better materials it stays there until something breaks. I hope this helps. Mike N8GBU ___ 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: PVC
Hello Mike - I use schedule 40 PVC with an OAK closet pole down the center for added stiffness for a horizontal boom. For vertical mast I use two PVC schedule 40 - one inside the other - along with a wood pole. I use PVC end caps on the ends to keep water/ moisture out. 73, Bruce WA3SWJ At 07:59 AM 2/24/2011, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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: PVC
And I forgot to mention -- I spray paint it all a flat black --- to help it blend in a little better! At 09:34 AM 2/24/2011, Bruce Semple wrote: Hello Mike - I use schedule 40 PVC with an OAK closet pole down the center for added stiffness for a horizontal boom. For vertical mast I use two PVC schedule 40 - one inside the other - along with a wood pole. I use PVC end caps on the ends to keep water/ moisture out. 73, Bruce WA3SWJ At 07:59 AM 2/24/2011, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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: PVC Windsurfer Mast
I acquired a fair amount of windsurfer mast at a garage sale and have used it successfully as a mast for a 3 element 6M beam and also as a support for a 40M inverted vee with no problems yet. I have clamped two pieces together with hose clamps to get about 22 feet of height with no guying. Each individual mast is about 15 feet. It flexes in strong wind a bit, but that is what it is supposed to do in normal use. I have the antenna rotor for the 6 meter beam mounted on my deck with a sleeve bearing in a tripod. I know you were asking about PVC, but windsurfer technology has changed over the years and you may also find older masts at garage sales or flea markets. 73, Bill NJ1H On 2/24/2011 7:59 AM, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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: PVC
PVC is NOT a structural material. You can sometimes get away with using it for something like a vertical antenna without any real stress. However, using it to support something with any horizontal force is another matter. The colder the weather the more likely it is to fail. Making an A frame or T mast from wood is a much better idea, will support a lot more, and definitely will last considerably longer. Glen, K9STH Website: http://k9sth.com --- On Thu, 2/24/11, Mike1234 mikef1...@buckeye-express.com wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . ___ 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: PVC
It works well to fill a PVC pipe with a wood dowel the size of the pipe's inner diameter. Then you just need to weatherproof the ends of the pipe with caps or otherwise. 73, Ken N2WWD On Feb 24, 2011, at 10:58 AM, Glen Zook gz...@yahoo.com wrote: PVC is NOT a structural material. You can sometimes get away with using it for something like a vertical antenna without any real stress. However, using it to support something with any horizontal force is another matter. The colder the weather the more likely it is to fail. Making an A frame or T mast from wood is a much better idea, will support a lot more, and definitely will last considerably longer. Glen, K9STH Website: http://k9sth.com --- On Thu, 2/24/11, Mike1234 mikef1...@buckeye-express.com wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . ___ 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: PVC
PVC is NOT a structural material And no matter how you disguise it with paint or whatever, it still looks like an ugly piece of PVC because they are always naturally curved, limp and bent. Bob, WB4APR ___ 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: PVC
Then what you have is a wooden structure with a PVC overcoat! The PVC is still not the real structural material. Glen, K9STH Website: http://k9sth.com --- On Thu, 2/24/11, Ken Ernandes n2...@mindspring.com wrote: It works well to fill a PVC pipe with a wood dowel the size of the pipe's inner diameter. Then you just need to weatherproof the ends of the pipe with caps or otherwise. ___ 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: PVC
I'm looking to put up a mast and am curious, why PVC? Is it better than steel? 73's Peter VE7NGP -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Bruce Semple Sent: Thursday, February 24, 2011 6:41 AM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Re: PVC And I forgot to mention -- I spray paint it all a flat black --- to help it blend in a little better! At 09:34 AM 2/24/2011, Bruce Semple wrote: Hello Mike - I use schedule 40 PVC with an OAK closet pole down the center for added stiffness for a horizontal boom. For vertical mast I use two PVC schedule 40 - one inside the other - along with a wood pole. I use PVC end caps on the ends to keep water/ moisture out. 73, Bruce WA3SWJ At 07:59 AM 2/24/2011, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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 ___ 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: PVC
But if you fill it with the wood dowels, they stay relatively straight and also won't get crushed by the antenna U-bolts. 73, Ken N2WWD On Feb 24, 2011, at 12:07 PM, Bob Bruninga bruni...@usna.edu wrote: PVC is NOT a structural material And no matter how you disguise it with paint or whatever, it still looks like an ugly piece of PVC because they are always naturally curved, limp and bent. Bob, WB4APR ___ 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: PVC
PVC will help keep the SWR down by keeping the distance the antenna is from another structure or possible ground that may cause an SWR or effect the radation pattern of your antenna system. Use a wooden closet rod and insert it inside the PVC pipe and put it up and enjoy. WA4HFN Damon - Original Message - From: Peter Ng peter...@bccdc.ca To: Bruce Semple bruce.sem...@verizon.net, AMSAT-BB@amsat.org Sent: Thursday, February 24, 2011 11:21:47 AM Subject: [amsat-bb] Re: PVC I'm looking to put up a mast and am curious, why PVC? Is it better than steel? 73's Peter VE7NGP -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Bruce Semple Sent: Thursday, February 24, 2011 6:41 AM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Re: PVC And I forgot to mention -- I spray paint it all a flat black --- to help it blend in a little better! At 09:34 AM 2/24/2011, Bruce Semple wrote: Hello Mike - I use schedule 40 PVC with an OAK closet pole down the center for added stiffness for a horizontal boom. For vertical mast I use two PVC schedule 40 - one inside the other - along with a wood pole. I use PVC end caps on the ends to keep water/ moisture out. 73, Bruce WA3SWJ At 07:59 AM 2/24/2011, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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 ___ 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: PVC-ED...
... are always naturally curved, limp and bent ... Thought you guys were making fun of me at my advancing age ... Then I read the rest of the thread. Clint, K6LCS ___ 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: PVC
I can't even believe that some people recommend doing this! Matt W5LL On 2/24/2011 11:21 AM, Ng, Peter wrote: I'm looking to put up a mast and am curious, why PVC? Is it better than steel? 73's Peter VE7NGP -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Bruce Semple Sent: Thursday, February 24, 2011 6:41 AM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Re: PVC And I forgot to mention -- I spray paint it all a flat black --- to help it blend in a little better! At 09:34 AM 2/24/2011, Bruce Semple wrote: Hello Mike - I use schedule 40 PVC with an OAK closet pole down the center for added stiffness for a horizontal boom. For vertical mast I use two PVC schedule 40 - one inside the other - along with a wood pole. I use PVC end caps on the ends to keep water/ moisture out. 73, Bruce WA3SWJ At 07:59 AM 2/24/2011, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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 ___ 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: PVC
My az-el has an 8 foot steel mast, with two 5 foot PVC and closet dowel verticals on each end. It's been up for 5 years in the Florida sun and storms, supporting a 10 element 2m yagi, 30 element 70cm CP yagi, a 35 element 23cm yagi, and a 3 foot S dish at the ends of the PVC/wood H booms. I did use the grey thick-walled PVC, not the white stuff. It's a perfectly acceptable material with the wood inside, non-conductive, non-rusting. 73, Drew KO4MA -Original Message- From: Matt Patterson mattp...@1starnet.com Sent: Feb 24, 2011 2:05 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: PVC I can't even believe that some people recommend doing this! Matt W5LL ___ 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: PVC
First off, The originator asks a very open-ended question. His only use of PVC was for a vertical antenna. So what is his intended use for a PVC mast? Except for very small wind-area antenna, it will not likely hold up. Why would one use inferior materials in place of easily obtained steel (best) or aluminum (satisfactory)? Does he need an insulated mast? Does he plan an antenna that has to be isolated from nearby metal because...? (it would affect the pattern?) Thick-wall fiberglass is considerably stronger than PVC and has all the characteristics. But neither will have the strength of steel. Adding wood inserted inside helps (somewhat). I made a 18-turn 432 helical beam with 1-1/4-inch wooden closet pole and it lasted two winters before snow-load broke it. I was too cheap for metal or fiberglass. Wood must be carefully selected for antenna material and probably not match using metal for strength/weight ratio. Some antennas have used PVC tubing for part of the structure. Perhaps a better answer would come with more details of what is to be supported by the PVC mast. And re: negative nancy - she may have extensive experience to speak from. ;-) I thought that was what the query was about - experiences by others using PVC. Not everyone will have positive experiences with PVC. 73, Ed - KL7UW At 10:31 AM 2/24/2011, Dave Webb KB1PVH wrote: It would be great if all the Negative Nancys would offer a positive solution instead of just shooting it down that way we can all benefit. Dave - KB1PVH Sent from my Verizon Wireless DROID X On Feb 24, 2011 2:22 PM, Matt Patterson mattp...@1starnet.com wrote: I can't even believe that some people recommend doing this! Matt W5LL On 2/24/2011 11:21 AM, Ng, Peter wrote: I'm looking to put up a mast and am curious, why PVC? Is it better than steel? 73's Peter VE7NGP -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Bruce Semple Sent: Thursday, February 24, 2011 6:41 AM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Re: PVC And I forgot to mention -- I spray paint it all a flat black --- to help it blend in a little better! At 09:34 AM 2/24/2011, Bruce Semple wrote: Hello Mike - I use schedule 40 PVC with an OAK closet pole down the center for added stiffness for a horizontal boom. For vertical mast I use two PVC schedule 40 - one inside the other - along with a wood pole. I use PVC end caps on the ends to keep water/ moisture out. 73, Bruce WA3SWJ At 07:59 AM 2/24/2011, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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 ___ 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 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw*, 432-100w, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com == *temp not in service ___ 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] Re: PVC
PVC is CHEAP! However, it has no real structural strength and, in cold weather, often gets brittle and fractures. PVC is made for carrying things like water and is definitely not made to be able to withstand any forces other than moderate pressure (i.e. water pressure). People do make things from PVC on which they do put structural forces. However, doing so is at their own risk and quite often the structure does not survive. Glen, K9STH Website: http://k9sth.com --- On Thu, 2/24/11, Ng, Peter peter...@bccdc.ca wrote: curious, why PVC? Is it better than steel? ___ 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: PVC
Again, you are NOT using the PVC for structural strength. Your strength is coming from the wood! Big difference from using just PVC. Glen, K9STH Website: http://k9sth.com --- On Thu, 2/24/11, Andrew Glasbrenner glasbren...@mindspring.com wrote: My az-el has an 8 foot steel mast, with two 5 foot PVC and closet dowel verticals on each end. It's been up for 5 years in the Florida sun and storms, supporting a 10 element 2m yagi, 30 element 70cm CP yagi, a 35 element 23cm yagi, and a 3 foot S dish at the ends of the PVC/wood H booms. I did use the grey thick-walled PVC, not the white stuff. It's a perfectly acceptable material with the wood inside, non-conductive, non-rusting. ___ 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: PVC
don't forget what the sun will do to it. I really would use wood before PVC. ___ 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: PVC
Hmmm... how about not being cheap and buy a steel or aluminum mast? That's my solution Matt W5LL On 2/24/2011 1:31 PM, Dave Webb KB1PVH wrote: It would be great if all the Negative Nancys would offer a positive solution instead of just shooting it down that way we can all benefit. Dave - KB1PVH Sent from my Verizon Wireless DROID X On Feb 24, 2011 2:22 PM, Matt Pattersonmattp...@1starnet.com wrote: I can't even believe that some people recommend doing this! Matt W5LL On 2/24/2011 11:21 AM, Ng, Peter wrote: I'm looking to put up a mast and am curious, why PVC? Is it better than steel? 73's Peter VE7NGP -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Bruce Semple Sent: Thursday, February 24, 2011 6:41 AM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Re: PVC And I forgot to mention -- I spray paint it all a flat black --- to help it blend in a little better! At 09:34 AM 2/24/2011, Bruce Semple wrote: Hello Mike - I use schedule 40 PVC with an OAK closet pole down the center for added stiffness for a horizontal boom. For vertical mast I use two PVC schedule 40 - one inside the other - along with a wood pole. I use PVC end caps on the ends to keep water/ moisture out. 73, Bruce WA3SWJ At 07:59 AM 2/24/2011, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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 ___ 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 ___ 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: PVC
How about not wanting to interfere with the antenna pattern...? Fiberglass is very expensive... Didn't you ever overtighten the ubolts mast clamps and see that aluminum crimp a bit??? Good suggestions on all but the owner/user will decide... 73. Dee, NB2F -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Matt Patterson Sent: Thursday, February 24, 2011 3:32 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: PVC Hmmm... how about not being cheap and buy a steel or aluminum mast? That's my solution Matt W5LL On 2/24/2011 1:31 PM, Dave Webb KB1PVH wrote: It would be great if all the Negative Nancys would offer a positive solution instead of just shooting it down that way we can all benefit. Dave - KB1PVH Sent from my Verizon Wireless DROID X On Feb 24, 2011 2:22 PM, Matt Pattersonmattp...@1starnet.com wrote: I can't even believe that some people recommend doing this! Matt W5LL On 2/24/2011 11:21 AM, Ng, Peter wrote: I'm looking to put up a mast and am curious, why PVC? Is it better than steel? 73's Peter VE7NGP -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Bruce Semple Sent: Thursday, February 24, 2011 6:41 AM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Re: PVC And I forgot to mention -- I spray paint it all a flat black --- to help it blend in a little better! At 09:34 AM 2/24/2011, Bruce Semple wrote: Hello Mike - I use schedule 40 PVC with an OAK closet pole down the center for added stiffness for a horizontal boom. For vertical mast I use two PVC schedule 40 - one inside the other - along with a wood pole. I use PVC end caps on the ends to keep water/ moisture out. 73, Bruce WA3SWJ At 07:59 AM 2/24/2011, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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 ___ 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 ___ 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: PVC
Up here ten foot of gray electrical 1-1/2-inch PVC runs about $9.95 and ten foot of 1-1/4 ID schedule-40 aluminum about $15. When I am going to mount several hundreds of dollars of antennas on a mast am I going to risk losing them by saving $5? My nearly $3K 2m eme array (four antennas+H-frame+144-foot of coax+ elevation bracket) are supported by 3-1/2 feet of 2-inch sched-80 steel pipe! The 16 sq-foot wind area array has withstood 65mph winds sustained over a 30-hour period that stripped the ring gear on the Ham-III rotator (azimuth drive). I now use Ham-IV with steel ring gears. That array and mast have been up 11-years. You would not do that with PVC. The H-frame has combined aluminum and fiberglass on the vertical masts which support the 21-foot long 2m x-yagis. PVC would not be suitable even with wood. The fiberglass has wooden dowels inserted in the ends to prevent crushing the fiberglass with antenna clamps. I added short split lengthwise aluminum tubing to sheath the fiberglass at the clamp locations. You probably are not looking at a project this big but steel and aluminum are not that expensive. So is there another reason to want PVC? Ed At 11:32 AM 2/24/2011, Matt Patterson wrote: Hmmm... how about not being cheap and buy a steel or aluminum mast? That's my solution Matt W5LL On 2/24/2011 1:31 PM, Dave Webb KB1PVH wrote: It would be great if all the Negative Nancys would offer a positive solution instead of just shooting it down that way we can all benefit. Dave - KB1PVH Sent from my Verizon Wireless DROID X On Feb 24, 2011 2:22 PM, Matt Pattersonmattp...@1starnet.com wrote: I can't even believe that some people recommend doing this! Matt W5LL On 2/24/2011 11:21 AM, Ng, Peter wrote: I'm looking to put up a mast and am curious, why PVC? Is it better than steel? 73's Peter VE7NGP -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Bruce Semple Sent: Thursday, February 24, 2011 6:41 AM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Re: PVC And I forgot to mention -- I spray paint it all a flat black --- to help it blend in a little better! At 09:34 AM 2/24/2011, Bruce Semple wrote: Hello Mike - I use schedule 40 PVC with an OAK closet pole down the center for added stiffness for a horizontal boom. For vertical mast I use two PVC schedule 40 - one inside the other - along with a wood pole. I use PVC end caps on the ends to keep water/ moisture out. 73, Bruce WA3SWJ At 07:59 AM 2/24/2011, Mike1234 wrote: Has anyone ever experimented with PVC pipe to use for a mast in place of steel ? I have used it for vertical antennas and stands up excellent to the winds and weather here in Toledo, Ohio . Mike N8GBU ___ 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 ___ 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 ___ 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 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw*, 432-100w, 1296-testing*, 3400-winter
[amsat-bb] Re: PVC
Then, what's the PVC for? I went with a closet pole (sans PVC) for my horizontal support, and it's still going fine after something like 10 years up on the roof. Around here (Northern California Sierra foothills), PVC degrades very quickly in the Sun, so it's more of a liability than anything else. It's also pretty heavy for what weather proofing or whatever else you think you're getting. You'd be better off filling the extra diameter with more wood. The vertical support is steel, held in a wooden tripod. Greg KO6TH Date: Thu, 24 Feb 2011 09:11:22 -0800 From: gz...@yahoo.com To: n2...@mindspring.com CC: AMSAT-BB@amsat.org Subject: [amsat-bb] Re: PVC Then what you have is a wooden structure with a PVC overcoat! The PVC is still not the real structural material. Glen, K9STH Website: http://k9sth.com --- On Thu, 2/24/11, Ken Ernandes n2...@mindspring.com wrote: It works well to fill a PVC pipe with a wood dowel the size of the pipe's inner diameter. Then you just need to weatherproof the ends of the pipe with caps or otherwise. ___ 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
