Hi Mark, Gladiator's Webpage (http://www.primenet.com/~bmyers/160_80.htm) has the details for this antenna. I do not have firsthand experience but YK1AO uses one and has a good transmit signal here in the USA. 73, Bill W4ZV -- FAQ on WWW: http://www.contesting.com/topband.html Submissions: topband@contesting.com Administrative requests: topband-REQUEST@contesting.com Problems: owner-topband@contesting.com