This talk presents new, low-cost, open-source, field programmable RF technology, where flexibility is extended from the digital to the RF domain. See demonstrations from the open-source community using the LimeSDR platform, which incorporates two transmitters and two receivers covering 100kHz to 3.8GHz which can emulate GSM, LTE, UMTS, Wi-Fi, Bluetooth, Zigbee, RFID, HDTV, radio astronomy, passive RADAR, 2G/3G/4G cellsites, IoT gateway, amateur radio, wireless keyboard/mouse transmission/detection, aviation transponders, utility meters, satellite reception, remote tire pressure monitoring, drone command and control, RF test and measurement, and more.