Hello. I already asked the below question in another forum and received the answer that I should first go back to school. but I'm convinced that someone will help me here.
I know that I have 12-18Vdc in the coax feeding my LNB.
1) how could i "extract" this DC just before the LNB to supply a GPSDO via a 5V 7405 voltage regulator to allow me injecting the 25 Mhz directly nearby the LNB
2) alternatively, how could i "convey" the 25Mhz GPSDO signal via the coax cable together with the DC and then "extract" it inside the LNB for the same purpose
Thank you in advance for all valuable feedback
Daniel