I used FSJ4 as the rotor loop for a VHF array.
It lasted about a year when the coax shield cracked and eventually opened up.
Good stuff when it worked, infinite SWR when it didn't.
The replacement, also FSJ4, worked for a number of years without issue before
taking it down.
I'm not sure what the difference was so YMMV.
73's Mike K9MK
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Ignacy
Misztal
Sent: Friday, July 17, 2020 7:32 AM
To: ny9h@arrl.net
Cc: tower and HF Antenna Construction Topics.
Subject: Re: [TowerTalk] Can 1/4" or 3/8" Andrew SUPERFLEX be used for a Rotor
loop?
M&P connectors seem big and they twist. I bought a few of their cables and
they seem to have the loss as advertised. But one of their 7mm cables
developed an intermittent that took a long time to find.
Ignacy NO9E
On Fri, Jul 17, 2020, 07:21 Bill Steffey NY9H <ny9h@arrl.net> wrote:
> Did anyone look at the M&P ( Italy) site ?
>
>
> I've been involved for 20+ years with several divisions of what was CDT
> ( Mohawk, Montrose, West Penn Wire etc) now merged into Belden Corp.
> Observed many braiding & bunching machines in operation. I always
> understood that many of the best fabricating machines in the wire
> industry were made in Italy. I drew a conclusion that coax form ITALY
> very well could be the best. That said , I watched several coax
> connector assembly videos provided BY M&P , and was surprised to see
> they suggest you do NOT solder the shield on either N type for PL-259.
> They must believe that the compression is adequate. Why do I think that
> could be a warming while running that EXPERT KW ??????
>
> thoughts, diatribes , lectures ????
>
> bill ny9h/3
>
>
>
> d ann 7/16/2020 8:15 AM, Máximo EA1DDO_HK1H wrote:
> > Superflex cable is called from the hard coax point of view, but this
> Superflex has solid copper core. I think is not a good idea to keep a solid
> copper core turning and un-turning it that ofthen, will break.
> >
> > Best recommendation would be to use a really flex cable, but you can get
> better cables than RG8/RG213.
> >
> > Have you seen M&P cables?
> > https://messi.it/en/home.htm
> >
> > Or Ecoflex?
> > https://www.thedxshop.com/ecoflex/ecoflex-10-cables-connectors.html
> >
> >
> > 73, Maximo
> >
> >
>
> --
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