I used a 40' self-supporting Premax shipboard whip on our travel trailer for six years. It was fed with an Icom AH-4 with 6" of connecting wire between the tuner and the whip. I think it worked well. It was -not- a good performer on 80M, as one would expect. I wouldn't consider feeding this antenna with a lengthy run of coax.
I -do- have extensive bonding of the ground system to the metal trailer's body and frame and also uncoiled a number of radials "into the bushes" when we were parked. I used these same whips in the 3 mHz frequency range on small ocean survey vessels, but hasten to point out that this approached an ideal situation ... a vertical over salt water. (:-) Again, this antenna was fed with a tuner immediately beside the base of the whip. I now use a modified High Sierra "screwdriver" antenna on the trailer, mostly to gain acceptable performance on 80M. I more than doubled the length of the base to coil length to improve the efficiency. 73! ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
