With COTS (Consumer Off The Shelf) Signal Boosters you can reach up to 200 meters / 250 yards. Available for both GSM + 4G LTE + WIFI.
Before you purchase a Signal Booster, check which Band + Frequency (Mhz) – as some Signal Boosters are only compatible with certain Bands + Frequencies.
You may use only one Signal Booster for the TX (Transmitter), and have the RX using only the SDR with Amplifiers. Similar type of Antenna
To increase the operations, you may use two Signal Boosters for both the TX (Transmitter) and RX (Receiver) – but is not required to reach detection within ± 50 Yards.
