[Elecraft] Antenna Question

Mark E. Musick markmusick at sbcglobal.net
Mon Oct 10 22:43:35 EDT 2016


I use LMR400-FLEX for my rotor loops and have had no problems. It has been
up since 1999 or 2000. LMR400-FLEX is the designator for the stranded center
conductor version. I also have used Davis FLEX LMR400 equivalent and if I
remember correctly Davis-FLEX that is what is stamped on the feedline. The
difference between LMR400 solid center conductor and LMR400 FLEX stranded
center conductor has a loss of about .1 or .2db more at 50 MHz. Again if my
memory is correct.

Mark, WB9CIF

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John
Parker
Sent: Tuesday, October 11, 2016 1:38 AM
To: hsherriff at reagan.com; Elecraft Reflector <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] Antenna Question

There is a stranded center conductor version of the LM400, do not remember
what the designation is. I plan to use some for the same reason, going
around a rotor to a HexBeam.
73, John WB4UHCK3 #2165 

    On Monday, October 10, 2016 6:16 PM, "hsherriff at reagan.com"
<hsherriff at reagan.com> wrote:
 

 OK all. I'm installing a 6m rotating beam and feeding it with LMR400. Would
you connect the LMR to the antenna and allow it to move with the rotation,
or run a short length of something much more flexible between the antenna
and LMR? I have my concerns that the solid heavy inner conductor of the LMR
won't take much movement.

Harlan
K4HES

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