[Antennas] G5RV resistance question

[j. keith carter]

Hi John; In all probability there is a voltage balun in that piece of PVC
pipe and the usual bifilar winding puts one of them across the line. Hence
the low resistance. If you have a antenna analyzer check for resonance
about 20 meters. "Note -- the G5RV is resonant on 20 meters only". If you
don't have one you could try loading up at as low a power as your rig will
give you (usually 5 watts) again on 20 meters and see what the VSWR is. If
there is a balun you will not see any reflected but there will be forward
power. You will probably have to use your antenna tuner as the antenna may
not be exactly resonant between 14 -14.350 MHz. On all other bands you
will undoubtly need the tuner. Good luck. Keith, VE3JKC.

John McClain wrote:

> I am about to put up a G5RV that I purchased at HRO a couple of years
> ago.  I forgot to measure the resistance from shield to center
> conductor before soldering the PL-259 and now I find that the
> resistance is less than 1 ohm.  The twinlead and RG-8 used in the
> feedline meet in a sealed piece of PVC pipe where I suspect there is a
> transformer which would explain the low resistance but I am not
> certain.  Does anyone know what reading I should expect?  Is less than
> 1 ohm OK?
>
> John
> K7SVV
> K2 #2569
>