I did the same thing unfortunately all the sacrificial zincs disappeared in a few months.
On Mon, Dec 19, 2022, 16:18 W7TMT - Patrick <w7...@outlook.com> wrote: > I run an 80' high vertical on 160M from my sailboat in the saltwater of > Puget Sound/Salish Sea near Seattle. After experimenting with a number of > different saltwater connections I've simplified it to a single piece of > 1/2" dia. copper pipe 10' long and tapped in the middle. I hang it > horizontally over the side just below the water surface. Works great. > > I recently ran across a post by SE0X running an 160/80M vertical on a > floating dock who uses two lengths of suspended pipe. His RBN testing > suggested that adding a second one made a difference. Details here: > http://blog.se0x.info/?p=3442#more-3442 > > 73 > Patrick, W7TMT > > -----Original Message----- > From: Topband <topband-bounces+w7tmt=outlook....@contesting.com> On > Behalf Of GEORGE WALLNER > Sent: Monday, December 19, 2022 14:19 > To: Radio KH6O <radio.k...@gmail.com>; topband@contesting.com > Subject: Re: Topband: Antennas and saltwater > > If the antenna stands in the salt-water or if you have a short, low > impedance connection to the water, you don't need radials. > During the VK9WWI DXpedition to Willis Islets, we installed a vertical on > a sand spit that was covered by water most of the time. We had 12 radials > of various lengths a couple of feet above the water. The antenna was fed > via an antenna coupler (tuner) mounted on its base. Every night during high > tide the waves knocked down and washed the radials into a tangled mess. For > the first three days we restored the radials every morning. But we never > noticed any difference between when the radials were up or when they were > in a heap at the base of the antenna. After three days we got rid of the > radials. The antenna had a heavy metal base which was always in contact > with the water. > Ever since then, on various DXpeditions (TX3A, VK9GMW, PT0S, etc.), we > always put the antennas into the water (or the very edge of it where we > drive into the sand a grounding stake) and never bothered with radials. > > Years ago I had a vertical at C6AGU standing in the water. During one > night a storm knocked it down. I reinstalled it up the beach about 75 feet > from the high tide line. I added 16 radials about 3 feet above the sand, I > was told that my 160 m signal was down 10 dB. I put the antenna back in the > water and had a good signal again. Whether the difference was really 10 dB, > I don't know. But it was substantial. (That was before RBN.) 73, George, > AA7JV/C6AGU > > On Mon, 19 Dec 2022 09:23:54 -0800 Radio KH6O wrote: > >> Ideal is if you can run some RG58 out to the beach and plunk it next > >> to thewater. Also use 4 radials there.Enjoy.Ed N1UR > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector