The max default coaxial cable length that we provide with the miners is 9m but you can extend that to 18m with another default cable and an extender that can be purchased from us by contacting us through support. Anything over 18m we cannot guarantee good results.
You can also use something like this instead of using our default cables
Custom Cable - 50 FT - Times Microwave LMR-400 - TNC Male - SMA Male Connector A : TNC Male Cable Type : Times Microwave LMR-400 - 50 FT Connector B : SMA Male
heres the link: https://mpddigital.us/cable-builder/
We recommend not using a splitter because it could cause interference.