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[TowerTalk] Fwd: Fwd: Fwd: hardline bending radius

Subject: [TowerTalk] Fwd: Fwd: Fwd: hardline bending radius
From: Hans Hammarquist <>
Date: Wed, 21 Nov 2012 14:48:44 -0500 (EST)
List-post: <">>
Thank you. Just what the doctor ordered. Yes, that's what the cable look like 
and I can only assume it is the same.

Minimum bending radius 6". Time to build the bending fixture.

73 de, Hans - N2JFS

-----Original Message-----
From: Grant Saviers <>
To: Hans Hammarquist <>
Sent: Wed, Nov 21, 2012 11:51 am
Subject: Re: [TowerTalk] Fwd:  Fwd:  hardline bending radius

              here is a 
    may be not exactly what you have, but since this is a common use    cable 
in CATV, the spec should be close to any manufacturer's    product.
    Grant KZ1W
On 11/20/2012 8:02 PM, Hans Hammarquist      wrote:
Hi Jim,

No, I don't have a part number. I purchased a roll (of 442 feet) at an antique 
auction for $1. Nobody know what it was. As it couldn't be used as a water pipe 
most people found it useless. :-) The jacket is solid black without any 
marking. I measured the loss of 1.2dB @ 65Mhz for the 442 feet length I have. 
(I am not sure about this measurement as the cable Z=75 ohms but the analyzer 
is for Z=50 ohms.)

The outside diameter of the aluminum shield is (pretty much) exactly 1/2 inch. 
The dielectric is foam. The center conductor fits very nicely inside the center 
pine of a PL-259. I seen the same cable used by cable TV companies as trunk 

I will build a bending fixture myself. That's the reason I want to know the 
minimum bending radius. I don't want to build something just to find out it was 
wrong and have to build something else later.

73 de,

Hans - N2JFS

-----Original Message-----
From: Jim Lux <>
To: towertalk <>
Sent: Tue, Nov 20, 2012 8:07 pm
Subject: Re: [TowerTalk] Fwd:  hardline bending radius

I do want to now what diameter to use for the fixture. I would like not to 

get/make one with a too small diameter and later have to get something 


So, what would I expect for a 1/2 inch solid conductor, solid/stiff shield 

with noting to aid bending.


Have you got a part # to look up the mfr data sheet?

Have you got a bending jig or tool to support it so it doesn't kink?


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