Calgary - CYYC - Tower (118.4 Mhz)

Calgary - CYYC - Arrivals (125.9 MHz) & Departures (119.8 MHz)

Dedicated pair of BearCat BC-75XLT scanners. Folded dipole antennas, one per scanner.

Raspberry Pi  2 B+ with audio capture via a Behringer USB audio interface. 

Left channel for the Tower and right channel for Arrivals & Departures.