Thanks all for the suggestions.
Martin, yes the Octagon twin lnb green has two separate oscillators, so your idea maybe feasible. If I want to use a unique cable I could use a diseq switch for example.
George, I've read something similar and I've tried, but I never managed to get it working as expected.
Mauro IW3ROW
Has anyone ever managed to keep the internal 25MHz LNB crystal and inject the external GPSDO disabling the internal ref.?
My goal would be that the LNB runs on internal crystal if no external ref. is provided, otherwise it runs on external reference source.
This is because I found that WB RX suffer a lot of phase noise, even with the Leo Bodnar GPSDO I have a noticeable difference in received quality between modified and unmodified LNB. Of course this is not an issue for NB SSB.
Any suggestion is welcome! Thanks, Mauro IW3ROW
