Think RG214 is marginal for 1500 W, at least on the high bands.
The RG217 cable is an excelent choice, however connectors might
be a problem, if you want to use UHF that is, I only know of N
and C connectors for that cable. However if you know how to
solder you can apply an old fashion UHF solder type connector
to it, works excelent.
For cables up and down towers and interconnections betwen
antennas RG217 is perfect. I always use RG217 on tower down
to ground and from there 7/8 " hard line.
By the way, RG217 is rated for around 1000 W on 144 MHz, if
I remember correctly.
I would say that even the Andrews Super Flex can be used, at
least if you dont make the rotor loop too tight, however below
30 MHz I see no need for Super Flex, RG217 will take many many
KW´s on 28 MHz and down.
73, Jim SM2EKM
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-----Ursprungligt meddelande-----
Från: jreisert@jlc.net [SMTP:jreisert@jlc.net]
Skickat: den 16 mars 2001 00:57
Till: billwall@bellsouth.net; k4rv@mindspring.com;
towertalk@contesting.com
Ämne: Re: [TowerTalk] flexible coax
Tom,
I prefer RG214 coax for rotor loops. It's not cheap (although very
common
on the surplus market-especially in short lengths and affordable). It
is
relatively flexible but also has two shields making it much sturdier
than
RG 213. I get several years of tough service out of it. Usually the
connectors fail before the coax.
Andrews so called flexible cables to me are a misnomer. True, they can
be
flexed, but only a few times! They are great during installations where
the
cable must be bent in peculiar shape but NOT FOR CONSTANTLY MOVING
ROTORS!
73,
Joe, W1JR
At 09:39 AM 3/15/01 -0500, bill wall wrote:
>Hi all:
>Andrews has a cable named flexible and I would also ask Press.
> Bill KC4UZ
>----- Original Message -----
>From: "Sain'T Tom" <k4rv@mindspring.com>
>To: "tower talk" <towertalk@contesting.com>
>Sent: Thursday, March 15, 2001 8:36 AM
>Subject: [TowerTalk] flexible coax
>
>
> > What is the biggest, lowest loss coax that is flexible enough to
use in a
> > rotor loop?
> >
> > What coax is typically used in a rotating tower installation, and
how is
>it
> > installed so as not to drag along the ground.
> >
> > Thanks
> > Tom K4RV
> >
> >
> >
> > --
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> >
> >
>
>
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