High gain/very long range 850mhz reception

[scanmanmi]

Something like this

Laird TE Connectivity PC8210N - 800 MHz Yagi Antennas

824-896 MHz, Gain 11 dBd (13.15 dBi), Jumper Included 19" w/ N Female, RF Connector N Female, Type of Hardware Included U-Bolts

theantennafarm.com