[squarefoot]

Some SDR devices can go higher than 1800MHz, the HackRF One for example receives and transmits from 1 MHz to 6GHz and has been used to decode some GSM and LTE traffic.

https://sdr-x.github.io/Whole-20MHz-config-LTE-signal-is-dec...

https://greatscottgadgets.com/hackrf/

Way different price though still interesting.