To run a G5RV on 160m you have to close off one end of it shorting the two wires
together which effectively gives you 208ft of length.
I've also found that if you have an internal tuner such as on the ts2000 it
works quite well on 6m.
Tom
Tom Brennan KD5VIJ, CCC-A/SLP
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html