Filtr z kabla koncentrycznego |
as example: http://www.kf8kk.com/wi0ok/sixduplex.html http://www.lewczuk.pl/phocadownload/artykuly/6meterheliaxduplexer.pdf Remember that these are NOTCH ONLY stubs. If you have a strong local 'out of band' signal that you need to reduce you would have to determine the frequency of that and build a stub to drop that signal down. |