Topband: Broadband dipoles

[Tom Boucher]

Yes Tom, I was going to mention the polyprop guys as well. Worst stuff you 
can use. Well remember a 60' mast bent across my neighbours roof as a result 
of using polyprop guys which had degraded in UV. You get splinters of the 
stuff in your hands as well!

I use polyester (Terylene, Dacron, Trevira) for guys which seems pretty 
good. Nylon is super strong so I use it for halyards but it does have a 
fairly high stretch so not ideal for guys.

73
Tom G3OLB

W8JI wrote:
> You mean this part of the SPX data sheet that screams "dummy load"?   :-)
>
> "Tower guys are made of tough
> polypropylene rope. The resistive terminations are
> mounted in protective, ventilated containers."
>
> (Polypropylene, unless some special UV inhibited stuff, is terrible in
> sunlight. Nylon is much better. Polyproplene lasts about a year or two 
> here,
> while typical nylon lasts a dozen years)
>
> Any antenna that says "no tuner required" and covers all frequencies with 
> a
> low SWR should raise the snake-oil caution flag.
>