it's the LMRx00UF (ultraflex) you want, not plain LMRx00.
I use LMR600UF as a jumper for my 6m antenna, at the top of the tower, and
it's been doing quite well. It's made of a stranded copper core and copper
outer conductor. No aluminum.
It's the non-UF ones that use aluminum, and also their core is made of
copper platted aluminum rod.
p.s. RG213 has been known to melt...
On Mon, Nov 2, 2020, 14:30 Rob Atkinson <ranchorobbo@gmail.com> wrote:
> >I bought LMR400 once and it seemed so stiff. Does this work OK around a
> >rotator? I also have some LMR400UF which has a stranded conductor and is
> >much more flexible however unfortunately Times used a different jacket
> >material which is less UV resistant. All of my rotator loops are RG-213.
>
> To be honest, I've never understood the love affair with LMR. I think
> it's horrible cable. You have an aluminum foil shield with tinned
> copper braid laid over it. I wouldn't want to solder that and I
> don't think that's the way the LMR connectors work anyway. If you
> have to crimp it a crimp on that shield with foam dielectric doesn't
> work well long term and if the jacket is breached the shield is
> fragile. I'd go with Andrew or Commscope 1/2 inch heliax hands down.
> The corrugated solid copper shield can be crimped with the Andrew N
> connectors and it's a water proof seal plus if the jacket gets cut the
> copper shield will preserve the interior until the jacket can be
> repaired. It's also able to withstand weight on it. I'd run heliax
> and use RG213 for the rotator loop however on 70 cm. something else
> may be needed. You can also solder to the corrugated copper more
> easily and it can maintain its shape under pressure from a hose clamp
> if you want to connect it to strap on the inside of a transmitter or
> transmatch enclosure at a feed point. I know the price of Heliax has
> gone up substantially so I'd look for used runs.
>
> 73
> Rob
> K5UJ
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|