C&S Engineering. Tuned input and output, variable gain, >20dB. I have the 160 & 80 switchable version, which I flip on or off as needed. http://home1.gte.net/crlewis/index.htm 73, Jeff Maass K8ND -- FAQ on WWW: http://www.contesting.com/FAQ/topband Submissions: topband@contesting.com Administrative requests: topband-REQUEST@contesting.com Problems: owner-topband@contesting.com