Tom, by coax type I meant that the antenna itself is made of coax. However,
I've also found less tvi problem if I was running a version that ran the ladder
line through a balun and in to coax to the rig rather than directly connecting
the ladder line to the rig.
Tom
Tom Brennan KD5VIJ, CCC-A/SLP
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html