Hi all
I'm working on a project which will allow a single RG8 cable to have 13.8vdc injected to power the remote circuitry, to receive RF back down the coax (AC) but also control 8 relays.
This is for a remote receiving antenna for the shortwave bands.
Injecting the power volatge and filtering ac / dc both ends i have covered but I have no idea where to start with being able to switch 8 different relays (1 at a time) over coax.
Now I could put a amtel microcontroller at the remote end but could a serial bus be injected along with the dc voltage and RF signal coming back from the preamp?
Sorry if it's a bit heavy but it's making my head hurt
Mak
I'm working on a project which will allow a single RG8 cable to have 13.8vdc injected to power the remote circuitry, to receive RF back down the coax (AC) but also control 8 relays.
This is for a remote receiving antenna for the shortwave bands.
Injecting the power volatge and filtering ac / dc both ends i have covered but I have no idea where to start with being able to switch 8 different relays (1 at a time) over coax.
Now I could put a amtel microcontroller at the remote end but could a serial bus be injected along with the dc voltage and RF signal coming back from the preamp?
Sorry if it's a bit heavy but it's making my head hurt
Mak