Article below is a part of the assembly process of the UHF duplexer – main article is HERE.
Drawing below shows a [AL100] – 8mm Aluminium End Cap Bottom.
Main purpose of the part is to protect everything what is inside of the duplexer’s cavity and also to house a tuning rod RX & rod TX– for a final frequency tuning.
PDF Download HEREPreparing material – 8mm thick aluminiumTurning the end cap using a jig (4 x M4 holes required)Turning the end cap using a jig (4 M4 holes required)Drilling M5 tapped hole for a tuning rodGoogle Pixel 5 (4.38mm, f/1.73, 1/371 sec, ISO66) Tapping a hole for the duplexer’s tuning rodGoogle Pixel 5 (4.38mm, f/1.73, 1/509 sec, ISO57)
