Bob Miller schrieb:
On Tue, 05 Apr 2005 05:04:47 -0400, Gary wrote:


I've looked at several commercial G5RV's and most seem to lack a balun
when the coax is connected to the 450 Ohm ladder line. I would suspect
a 4:1 balun at the coax to ladder line connection would make for a
better operating antenna or perhaps running the ladder line into the
shack here to the 4:1 balun built into my tuner. Though the normal
length of the ladder line coming off the G5RV may not be long enough
to reach my tuner, much less the problem of keeping it away from the
aluminum siding, tower etc. Would my best bet be to get a 4:1 balun
and feed that one end with coax and the other end with the ladder
line of the G5RV ?

Any input appreciated.

Thanks in advance !

73 Gary


see Louis Varney's article at:

http://www.qsl.net/aa3px/g5rv.htm

he has a few words on feedlines, baluns, etc...

bob
k5qwg



of course ...

the G5RV is much the same as the double-zepp or doublet antenna !

if you have an antenna tuner with balanced line connector, you dont
need a balun ... just keep the ladder line 12.80m for current coupling,
or keep it 23.60m for voltage coupling. the legs will be 41m together !

this is proved antenna and it works very good from 160m to 10m !