Terry it will depend a lot on the matching range of the internal tuner in your rig. Generally the internal auto-tuners don't have the sort of range that you would find on the LDG Z100.
For what it is worth, I am using a double-sized G5RV (ie 204 ft long) at my cottage. I have a balun attached to the 66ft of window-line and about 15 feet of LMR-400 coax going to my LDG Z100 Pro.
I easily get an acceptable match on all bands from 160m through 6m with this combination, with the
exception of 80m where the matching is iffy in some places on the band.
I suspect that you will be ok with the G5RV junior and the Z100. The internal tuner may not be able to
do as good a job at matching, it is hard to say until you try it. Just be sure to keep the ladderline or twinlead feed off of the ground and
spaced away from anything metal (6 inches is probably a good distance). I also recommend using a short
run of very high quality coax as on some bands the SWR on the coax will be high, so you want to minimize
Best of luck and let us know how you make out.
Michael VE3WMB / VA2NB
Just picked up a G5RV Jr. and haven't put it up yet. Everything I read about these (including the maker's instruction sheet) say that the rig's tuner won't work and an external manual tuner is a must. Nothing else will do! You'll blow the roof off your house if you try to tune it with your rig! Are they really that hard to tune? My rig is an older Yaesu FT900 with the ATU2 internal tuner. I'll only be running 100 watts. I've read that my rig's tuner was one of the better ones and can usually handle what the newer ones won't. The only other tuner I have is an LDG Z100. Does anyone have experience with this rig/antenna combo? The antenna will be nowhere near an ideal install. Thanks!