[TowerTalk] TH11DX and Belden 9913
Mahlon Haunschild
mahlonhaunschild at cox.net
Wed Feb 25 20:07:01 EST 2004
Belden 9913 has a 10 AWG solid coppper center conductor within an
airspaced dielectric. When moved frequently (such as in a rotator
loop), the center conductor migrates away from the center of the
dielectric, creating impedance bumps in the cable. CQ Flexi 4XL is
otherwise identical to 9913 but has a stranded center conductor, which
is much more flexible. It is not as susceptible to center conductor
migration.
regards,
Mahlon - K4OQ
Bernard wrote:
> I was looking at the instruction manual for the HyGain TH11DX and noticed that it said that Belden 9913 coax is NOT recommended as feedline. Anyone know why? I just bought some CQ FLEXI 4XL from the Wireman and I think that it is a variation of the Belden 9913.
>
> 73
>
> Bernard, WA4OEJ
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