[TowerTalk] Used Heliax ?

Jim Brown jim at audiosystemsgroup.com
Sat Dec 24 09:06:59 PST 2011


On 12/24/2011 8:44 AM, F5vjc wrote:
> I'm thinking to buy some used Heliax locally. I have a couple of
> offers, one is LDF4-50 which I am familiar with, the other is LDF1-50
> which I am not. I have of course looked these up on the net and can
> find and compare the specs of both.
>
> This is for an HF only installation (up to 50 MHz) 150 feet in length
> so losses are not my major concern.

Then why do you want Heliax?  The primary advantage is lower loss.  The 
only other one I can think of is robustness against rodents. I use 
LDF4-50 and LDF5-50 for 100m runs to my tower.

> However in general is there anything to watch out for when buying used Heliax of any type? I believe it is Andrews. The LDF 4-50 will come with N type connectors so that is a plus,

LDF4-50 is very nice cable, connectors are widely available at moderate 
cost, and the loss is significantly lower than the best RG8-size coax.  
I'm  using LDF4 to go up the tower and LDF5 for the longer run on the 
ground.

73, Jim K9YC


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