We have a customer with a large commercial kitchen operation where Sensor Check equipment for automated refrigeration temperature monitoring is installed. This include 30 BLE-enabled sensors and 4 Boron-based collectors. They are concerned that this equipment has made cellular reception for their personal cellphones worse than it was without the equipment. We are using the recommended Particle antennas with the Borons for BLE and Cellular, and the BLE sensors use an antenna on their PCB.
I have suggested turning all equipment off and comparing, but complicating all of this is their close proximity to a major airport which presents its own cellular interference challenges. Any suggestions regarding how to sort this out?