KD8BVJ
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« on: July 23, 2006, 08:01:42 PM » |
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I need about 125 feet of coax. I suppose I will bury it directly. Does anyone have any recommendations? Bury-Flex looks good but is there a more affordable alternative? I would hope my installation will last 10+ years.
73
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KD8BVJ
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« Reply #1 on: July 23, 2006, 08:31:53 PM » |
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Also there will be two bends. One ~45 degrees and one 90 degrees around my house. Someday I will use a 1 KW amp but for now it's 100 watts to a Butternut HF-6V.
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KB9CRY
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« Reply #2 on: July 24, 2006, 06:51:30 AM » |
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Personally I like the direct burial stuff from CableXperts. www.cablexperts.comPhil KB9CRY |
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WB2WIK
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« Reply #3 on: July 24, 2006, 08:23:29 AM » |
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My recommendation would be don't bury it unless you have to.
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KD8BVJ
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Posts: 184
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« Reply #4 on: July 24, 2006, 08:53:06 AM » |
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Thanks. Cablexperts has a 500 foot minimum. I need 110 feet. I was thinking about Bury-Flex. I will have to bury it. Just to keep it out of the way.
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W3LK
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« Reply #5 on: July 25, 2006, 07:41:49 AM » |
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<< Cablexperts has a 500 foot minimum. >>
I think you misread something. I've ordered from them and never ran into this.
73,
Lon - W3LK
Baltimore, Maryland
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A smoking section in a restaurant makes as much sense as a peeing section in a swimming pool.
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KD8BVJ
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Posts: 184
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« Reply #6 on: July 25, 2006, 08:59:24 AM » |
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Thanks Lon. It's not important now. I ordered from Thewireman.com last night.
As it turned out RF Parts online ordering was a hassle also. There order form would not work with my browser. I will give Cablexperts another try next time.
Thewireman E-Mailed me 40 minutes after they opened this morning and said they are shipping my order today!
Thanks Again
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W3LK
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« Reply #7 on: July 25, 2006, 09:07:33 AM » |
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Glad you got what you needed.
73,
Lon - W3LK
Baltimore, Maryland
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A smoking section in a restaurant makes as much sense as a peeing section in a swimming pool.
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N3OX
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« Reply #8 on: July 25, 2006, 10:37:46 AM » |
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A run of 2" PVC electrical conduit is cheap, easy to bury and will give you something to pull new runs of coax or rotator/control cables through later.
Just a thought.
Dan
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KD8BVJ
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Posts: 184
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« Reply #9 on: July 25, 2006, 11:55:45 AM » |
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I am tempted to use some sort of conduit. I would need 90 feet. That's with one 45 and one 90 degree turn.
Thanks
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AA4PB
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« Reply #10 on: July 25, 2006, 01:08:02 PM » |
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That's probably about $30 worth of PVC. Be sure to use a "swept" 90 so you don't have any sharp bends to pull through.
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KD8BVJ
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Posts: 184
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« Reply #11 on: July 26, 2006, 05:44:53 AM » |
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What is the best way to pull the conduit or does it go in during the assembly of the conduit?
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KD8BVJ
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Posts: 184
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« Reply #12 on: July 26, 2006, 05:45:28 AM » |
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I mean "pull the coax"
73
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WB2WIK
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« Reply #13 on: July 26, 2006, 09:45:00 AM » |
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Coax is unlikely to pull around a 90 degree bend unless the bend has a large radius -- surely larger than a PVC elbow.
Anyway, the conventional way to pull wires through PVC tubing is the same as pulling them through metal conduit: Apply some grease to the wires and pull them through with a "fish tape." Cheap tool sold in hardware stores and electrical supply houses. If the pull is straight and not too long, you don't need the grease.
If I were burying PVC specifically for ham radio use, I'd make it larger than 2" diameter. Makes pulling easier, and makes adding more cables later a whole lot easier.
WB2WIK/6
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WILLY
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« Reply #14 on: July 26, 2006, 03:12:57 PM » |
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by N3OX on July 25, 2006
"A run of 2" PVC electrical conduit is cheap, easy to bury and will give you something to pull new runs of coax or rotator/control cables through"
What about condensation?
Won't the PVC slowly accumulate water, such that the coax and rotator cables will be soaking in water all the time?
That can't be a good thing.
I remember reading about this somewhere, but can't remember what said next.
Any comments from anyone?
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