It's #TechTuesday! Cisco employee, John Combs shows us the 5-meter Electro Magnetic Compatibility testing chamber. This anechoic chamber eliminates external radio frequency noise in order to measure the radio frequency emissions transmitted by a specific product. John works in three areas at Cisco: accessibility for people with disabilities, green design of products including making them more energy efficient, and telecommunications interface testing & certification. Do you work with Cisco products? Send us your picture by tagging #CiscoTech to be featured on Cisco’s Instagram account!