[Repeater-Builder] 820 MHz duplexer problem:urgent !!

please advise me how i tune the duplexr of Tx (811.1-819.2MHz) Rx (856.1-864.2 MHz) . I am tuning this by desigig band reject notch type duplxer but I have a problem in achieving 1 dB insertin loss and 70 dB iisolation on low and high side. I am using 1 PF capacitor on high side . please

Re: [Repeater-Builder] 820 MHz duplexer problem:urgent !!

This may help: http://www.repeater-builder.com/rbtip/notchduptuning.html Kevin Custer vikas gupta wrote: please advise me how i tune the duplexr of Tx (811.1-819.2MHz) Rx (856.1-864.2 MHz) . I am tuning this by desigig band reject notch type duplxer but I have a problem in achieving 1 dB