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Re: Heliax cable bend?
To: CRTech <crtech@crtech.org>
Subject: Re: Heliax cable bend?
From: David Benson <wn8mup@gmail.com>
Date: Tue, 20 Nov 2018 14:44:44 -0500
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In-reply-to: <000f4244.2ee12f982514177e@pilgrimradio.com>
References: <000f4244.2ee12f982514177e@pilgrimradio.com>
I agree with Kevin, have it significantly above room temperature. If you can find a temperature rating for it that might be a good guide to how hot you can go. 
Think how hot it gets in the summer sitting in the sun. 

Dave Benson

On Nov 20, 2018 12:53 PM, "billhurne@pilgrimradio.com" <billhurne@pilgrimradio.com> wrote:


How warm?  I can take up hair dryer, heat gun, and IR thermometer.  It has a black jacket over the copper.


Sent from my Verizon 4G LTE Smartphone

------ Original message------

From: David Benson

Date: Sun, Nov 18, 2018 11:27 AM

To: CRTech;

Subject:Re: [CRTech] Heliax cable bend?

Maybe make sure that section is pretty warm before trying to straighten, just my 1/2 cent worth of advice.

On Sun, Nov 18, 2018, 8:49 AM Rick Jesse <javajava56@gmail.com wrote:
Be careful. That’s a tight bend for sure

On Thu, Nov 15, 2018 at 10:11 PM Bill Hurne <billhurne@pilgrimradio.com> wrote:

Re-working RF plumbing at an installation, want to straighten a 90 degree bend near end of in 3 inch 50 ohm corrugated Heliax.    I think it is HJ8-50B, but not sure.  Existing Cable bend has about a 20 inch radius, recommended radius is no less than 30 inches.   It is working fine with the 20 inch radius and is pressurized.


Would I be safe to straighten the bend?   Would straightening cause damage requiring cutting off the bend and adding cable?   Of course work needs to be done while off air, just want to know how long we will be off, etc.


Bill Hurne
Chief Engineer
Pilgrim Radio


P: 775-883-5647  Ext 18

6363 U.S. Hwy. 50 East
Carson City, NV  89701







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References: Re: Heliax cable bend?
(billhurne@pilgrimradio.com <billhurne@pilgrimradio.com>, 19 Nov 2018 01:46:49 -0000)
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