Depends on the size of the heliax. The larger stuff has a tube as center
conductor. In any event just calculate the cross sectional area of the copper
of the center conductor and you can compare that with a wire gauge chart.
From: Adam Moffett
Sent: Tuesday, November 03, 2015 1:08 PM
To: af@afmug.com
Subject: Re: [AFMUG] using heliax for DC power up tower?
For equivalent wire gauge would you just compare the center conductor diameter
to a wire gauge chart?
On 11/2/2015 6:51 PM, Chuck McCown wrote:
It is pretty easy to insert and remove power from a coax that also has RF on
it too. Just a choke coil and capacitor at both ends. If you want details
give me the frequency and what kind of power and I will design it for you.
From: Jaime Solorza
Sent: Monday, November 02, 2015 4:49 PM
To: Animal Farm
Subject: Re: [AFMUG] using heliax for DC power up tower?
Yep .we used. LMR 400 to power custom made receive amps for WMux radios we
modified long time ago.
Jaime Solorza
On Nov 2, 2015 3:51 PM, "Chuck McCown" <ch...@wbmfg.com> wrote:
Just make sure if you hook it up to 120 VAC main current you don’t put the
hot wire on the outer conductor of the coax...
From: Ty Featherling
Sent: Monday, November 02, 2015 3:43 PM
To: af@afmug.com
Subject: Re: [AFMUG] using heliax for DC power up tower?
Thanks all, great solution Josh!
-Ty
-Ty
On Mon, Nov 2, 2015 at 4:38 PM, Chuck McCown <ch...@wbmfg.com> wrote:
You can run DC or AC over it.
Think of it this way, 1000 watt ham radio puts 223 volts AC (at RF
frequencies) on the coax and everything is just fine.
All CATV systems put 60 or 90 volts AC on the line to power the amps.
From: Ty Featherling
Sent: Monday, November 02, 2015 2:09 PM
To: af@afmug.com
Subject: [AFMUG] using heliax for DC power up tower?
Any reason I couldn't use 1/4" heliax I already have in place up a tower
to run power to a POE switch?
This is the stuff:
https://www.tessco.com/products/displayProductInfo.do?sku=469162
-Ty
