Shameless commercial plug follows - Topband types usually have large rx antennas, and when my beverages and rx 4-square coaxes started snapping at me when thunderstorms rolled over last year (they were disconnected in the shack at the time), I installed a few of these in my single-point ground cabinet on the back of the house: https://picasaweb.google.com/n4ua.va/AntennaStuff?authkey=Gv1sRgCK3-i-O46I-6kgE&feat=directlink
They were originally sold as protectors for GPS antennas, but they didn't have a low enough threshold, so we didn't use them at work. I picked up a bunch of them just because "they ought to be good for something"... Internally, they are a straight-through conductor, that runs through the center of a custom gas tube. The discharge voltage is around 60 volts, so it will get rid a lot of surge energy. They have F-connectors at both ends, and they originally came with screw-on TNC-F adapters that are easily removed. You can find them on the Zap-Tech website, but they don't give any hard specs there. If you could use one or more, I am selling them for $15 each plus shipping. Because of the mounting saddle, I would hesitate to put them in a padded envelope, but they would travel well in the small flat-rate box. 73, geo - n4ua _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
