Resent due to OE tag stripping, sorry I haven't caught on yet. ;-) > Hi RF Jim, Sean and all, > > Can someone introduce me to any good sites for antenna grounding? The ARRL Antenna book is probably the best document available. > The problem with the system that needs fixing I think is with the radial > ground network. The antenna is installed in a small island. The radial > wires go into the sea, strong waves and current entrangles the whole network > and breaks the wires. When this happens, the reflected power rise to 50%of > transmitted power and tripped the transmitter. I take it this is a large 1/4 wave antenna for low frequencys. You won't get a ground plane much better than the radials in sea, but you can use an LC network to match the transmitter (actually the feed line) to the changing impedance of the antenna. This will make the transmitter much happier, but it won't make the antenna work any better. > Is any other method of grounding (without needing to extend into the sea) > that might solve this problem? Not that I am aware of. :-( Maybe you could use copper pipe instead of wire? Outside of that, the only thing I can think of is to switch to an antenna system that doesn't need a ground plane e.g. a dipole. michael -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu