[TowerTalk] Heliax Connectors

Steve Maki lists at oakcom.org
Wed Dec 21 15:30:26 PST 2011


Jim,

As far as I know you'll need V5 connectors. I know I've got some V5 DIN 
females, but I'll check for N's next time I go to the shop. Andrew never 
made UHF connectors for the VXL5, in fact they no longer make UHF 
connectors for any Heliax. If you used DINs you could make DIN-M to N 
jumpers or DIN-M to UHF jumpers for the terminations.

-Steve K8LX

On 12/21/2011 4:43 PM, Jim Brown wrote:

> I've got about 250 ft of Andrew VXL5-50 (7/8-in, tubular center
> conductor)  that I plan to use in a single run. I have several different
> connectors for 7/8-in line, but none are specifically labeled for that
> cable. The connectors I have are L5-NM, L5NF, L45N, and FLC78-50NM.
> VXL5-50 is obsolete, and so are the connectors listed for it in the
> older Andrew catalog, and the current Andrew catalog has no indication
> (or at least I can't find any) of which of  their current 7/8-in cable
> connectors might be suitable.
>
> I know that there are subtle differences between these cables that are
> not obvious on data sheets. For example, it isn't clear to me whether
> some of these cables have a solid center, or if all are tubular, and
> some cables that I suspect are tubular don't list and i.d. for the
> center conductor (a clue that the DC resistance of two very similar
> cable types are very different) .
>
> I need advice on which (if any) of these connectors will fit this cable,
> and if the answer is none, where can I find connectors that will?
> N-female, or UHF male or female, would be my first choice, but I'll take
> what I can get. :)
>
> 73, Jim K9YC



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