[TowerTalk] Identify Hardline

[David Gilbert]

I'm not sure you're going to be all that thrilled with it.  Here's what 
the Tessco web site says about it:

"Radiax slotted coaxial cables solve wireless communication problems in 
confined areas, such as buildings and tunnels, functioning as a 
continuous distributed antenna. RADIAX is a coaxial cable with carefully 
controlled slots in the outer conductor that allows RF signals to be 
coupled from and into the cable uniformly along the entire length of 
cable.  RADIAX cable is an excellent tool for communications in 
buildings where the potential for RF blockage of point-source antennas 
due to obstructions is high and where multiple services such as 
cellular, PCS, paging, and safety/emergency communications are required."

I suppose it is likely that the slots might not actually allow very much 
leakage at HF, but the downside is that you lose the water-tightness of 
normal heliax for buried applications.  It will be interesting to hear 
what kind of loss you measure.

73,
Dave   AB7E



Dan Hearn wrote:
> I picked up a roll of hardline  with the following label.  84147 Andrew
> Radiax TMRX5-1R Coaxial Cable.  It appears to be 7/8 stuff. There appears to
> be some sort of waxy material between the OD of the copper outer and the
> plastic covering. At least, that is what I find at the ends of the 250 ft
> piece. I plan to try a 50 ohm termination and measure the loss soon.  Any
> ideas?
> 73, Dan, N5AR
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