Hello @zegor_mjol,
Word of advice, never use a mobile/cellular repeater to feed your mobile/cellular modem.
Part of the reason is that the modems are MIMO, so each antenna needs a separate & clean signal path, mobile boosters can not facilitate this requirement, in actual fact they tend to hamper (interfere with and prevent) good MIMO & true LTE.
Your antennas on the modem need to be in a XPOL layout if you are in a rural environment.
Have a look at these previous threads and the discussion with @Joey_van_der_Gaag and myself, there is some good guidance and examples that may help you.
- Stuck obtaining IP address on T-Mobile - #8 by mldowling
- MAX Transit Wi-Fi Antenna Issue - #2 by mldowling
Depending on which country you are in, there will be a local Peplink Partner that can help you experienced in RF (I’m based in Australia myself). You can also continue to reach out here in the Forum to some of the experienced RF technicians that are members.
Happy to Help,
Marcus 