Plots from the setting up of the Duplexer for GB7CW
Marker 1 M1 430.400MHz Marker 2 M2 439.400 MHz Showing the isolation through the duplexer.
Showing pass at 439.400 MHz (Note attenuation of M1 430.400 MHz).)
Showing pass at 430.400 MHz (Note attenuation of M2 439.400 MHz)
Through pre amp and internal filter of pre-amp no DC Power on.
Through pre amp and internal filter of pre-amp ON (Note the rejection of Marker 2 obtained from internal filter tuning).