I´ve prepared a PLL LNB. I exchanged the original crystal quartz with a custom crystal quartz manufactured by Firma Quartz Technik, Daun / Eiffel. f = 23.58974 MHz.
LOF/L now 9,200 GHz. Test with wideband BADR signal is successful.
I try to receive the narrowband downlink with my FT-736 1,2 GHz modul on the downmixed 1289,8 MHz ZF frequency.