On Fri, 22 Apr 2005 11:13:44 -0500, Cecil Moore
wrote:

Gary wrote:
I've done a bit of reading on G5RV's and I plan to just use the
standard configuration of a 102' dipole center fed with 32' of 450 Ohm
ladder line.

According to EZNEC, here are the 50 ohm SWRs that you will
encounter if your 450 ohm ladder-line has a velocity factor
of 0.9. 3.8HMz, 17:1 7.2MHz, 4.8:1 10.125MHz, 55:1
14.2MHz, 2:1 18.14MHz, 35:1 21.3MHz, 23:1 25.95MHz, 2.5:1
28.4MHz, 60:1. You will definitely need a tuner. One wonders
if you couldn't do better with ladder-line all the way to the
tuner.

Well I've got two MFJ tuners ( one for use while the other's in for
repairs ;-) ) . The 949E is in for repairs, I've had it for about a
year or so and ( I think ) the diodes popped on the SWR/Wattmeter
circuit. The other tuner is the MFJ -993 Auto Tuner. The auto tuner
probably won't tune anything over 30:1 and I doubt the 949E would
either. But I'm primarily interested in 80/40/20 meters where the
tuners will handle the SWR. I could use the ladder line to the tuner's
wire input but that would require it to go through the 4:1 balun and
that would make it too low for the frequencies I'm interested in so
I'll probably just stick with a real short run of coax and use the
regular 52 ohm coax input.

Thanks for the information.

73 Gary K8IQ