Fw: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-30 Thread John Sehring
, wb8vlc mas...@cableone.net wrote: From: wb8vlc mas...@cableone.net Subject: [Repeater-Builder] Re: 2M Vertical Dipoles To: Repeater-Builder@yahoogroups.com Date: Saturday, August 29, 2009, 9:39 PM   I found some Plans on this groups page for a home made 4 pole array

[Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-29 Thread wb8vlc
for a while. Then see if the plastic gets hot. If it does, you don't want to use it for RF. 73 and aloha, Eric KH6CQ --- On Wed, 8/12/09, AJ aj.grant...@... wrote: From: AJ aj.grant...@... Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles To: Repeater-Builder@yahoogroups.com Date

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-12 Thread AJ
Does really PVC absorb or RF or just act as a dielectric? The reason I ask is I'm looking at encasing an antenna project for the sake of weatherproofing and PVC would fit the bill rather easily. 73, AJ, K6LOR On Mon, Aug 10, 2009 at 9:49 AM, AA8K73 GMail aa8...@gmail.com wrote: AJ, if you

RE: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-12 Thread Barry
some does ,test a piece in the microwave To: Repeater-Builder@yahoogroups.com From: aj.grant...@gmail.com Date: Wed, 12 Aug 2009 09:05:55 -0600 Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles Does really PVC absorb or RF or just act

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-12 Thread AJ
-- To: Repeater-Builder@yahoogroups.com From: aj.grant...@gmail.com Date: Wed, 12 Aug 2009 09:05:55 -0600 Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles Does really PVC absorb or RF or just act as a dielectric? The reason I ask is I'm looking at encasing an antenna project

RE: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-12 Thread Chris Curtis
Nuke a test piece and see if it gets hot. Chris Kb0wlf From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of AJ Sent: Wednesday, August 12, 2009 10:06 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-12 Thread Roger White
10:13 AM Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles The product I'm looking at specifically is branded as non metallic rigid PVC conduit sold locally at Lowes: http://www.carlon.com/Product_CarlonPlus4080.html On Wed, Aug 12, 2009 at 9:10 AM, Barry ate

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-12 Thread Jim Brown
, 8/12/09, AJ aj.grant...@gmail.com wrote: From: AJ aj.grant...@gmail.com Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles To: Repeater-Builder@yahoogroups.com Date: Wednesday, August 12, 2009, 10:05 AM   Does really PVC absorb or RF or just act as a dielectric

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-12 Thread Jim Brown
I see that YAHOO added spaces to the links in my last post.  Remove the spaces to make the links work. 73 - Jim  W5ZIT --- On Wed, 8/12/09, Jim Brown w5...@yahoo.com wrote: From: Jim Brown w5...@yahoo.com Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles To: Repeater-Builder

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-12 Thread Eric Grabowski
--- On Wed, 8/12/09, AJ aj.grant...@gmail.com wrote: From: AJ aj.grant...@gmail.com Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles To: Repeater-Builder@yahoogroups.com Date: Wednesday, August 12, 2009, 5:05 AM   Does really PVC absorb or RF or just act

[Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-11 Thread tahrens301
Hi Joe, Guess we are all telling our age. I had WR1AIK in 1975/76. Remember it took a note to my congressman to get the license assigned - seemed to take forever! I was in the AF in Northern Maine at the time. cu Tim W5FN --- In Repeater-Builder@yahoogroups.com, Joe k1ike_m...@... wrote:

[Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-10 Thread Paul Dumdie
If you want Laird / Antenex does make a 2 and 4 dipole array for the 2 meter band the part number is YDA1362 for a 2 dipole 136-150 antenna and YDA1364 for the 4 dipole antenna. They don't come with a mast pipe like the cushcraft antennas from long ago. They have a YDA2004 for 200-225 MHZ and

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-10 Thread AJ
On this same topic of the mast-less Antennex/Laird dipole arrays, has anyone attempted to top mount these from a fiberglass mast to minimize interaction with the normal steel pole? I have quite a few surplus fiberglass poles left that would likely work, even for side mounting on 1/2 wave spacing

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-10 Thread Paul Plack
To: Repeater-Builder@yahoogroups.com Sent: Monday, August 10, 2009 9:27 AM Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles On this same topic of the mast-less Antennex/Laird dipole arrays, has anyone attempted to top mount these from a fiberglass mast to minimize

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-10 Thread Kevin Custer
Paul Plack wrote: If you mount the array on a non-conductive pole, won't you then have to model the effects of interaction with the outside of the coax shields of the feedline harness that would normally be insignificant when attached to the side of a conductive pole? Be careful here

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-10 Thread AJ
Hmm, that would make sense... Back to the drawing board :) On Mon, Aug 10, 2009 at 11:15 AM, Kevin Custer kug...@kuggie.com wrote: Paul Plack wrote: If you mount the array on a non-conductive pole, won't you then have to model the effects of interaction with the outside of the coax shields

[Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-09 Thread wa9zzu
What was the spacing between the tower legs at the mounting location of the dipoles in your model? Allan Crites WA9ZZU -- In Repeater-Builder@yahoogroups.com, n...@... wrote: At 8/9/2009 05:47, you wrote: As frequency decreases, so does the importance of keeping the dipoles exactly

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-09 Thread no6b
At 8/9/2009 16:41, you wrote: What was the spacing between the tower legs at the mounting location of the dipoles in your model? No tower. Only the rooftop-mounted mast 4 dipoles, which is what I was using at the time. Bob NO6B

Re: [Repeater-Builder] Re: 2M Vertical Dipoles

2009-08-09 Thread AJ
Comtech I believe has the modeling for antenna side mounting from tower and it's affect on gain... On Sun, Aug 9, 2009 at 7:14 PM, n...@no6b.com wrote: At 8/9/2009 16:41, you wrote: What was the spacing between the tower legs at the mounting location of the dipoles in your model? No