The UAV Collaborative offers a wide range of services to support further research, development, and commercial implementation of UAV technologies. Below are some of the major services provided: National Airspace authorization | Flight safety Assurance | Payload/platform selection and integration Image processing | Platform and payload operations | Education and training Two methods have been demonstrated for UAV payload command and control. A wireless, line-of-sight local area network (LAN), based on commercially available hardware, has been configured for control and data download from the Duncantech, Kodak, and AiMS payloads. The hardware configuration uses a bridge radio interfaced to the data system by Ethernet. The 100 mw output of the bridge is amplified to 1 w and broadcast through omni blade antennas mounted in the bottom of the payload pods. The ground system uses a bridge radio attached to a 21-db gain dish antenna. The receiving antennas are mounted on a single tripod and a computer controlled azimuth-elevation tracking device is used to continuously point the dishes at the aircraft. Tests in a quiet radio-frequency environment have demonstrated successful broadband (11 Mbit/sec) connectivity between aircraft and ground station. Over-the-horizon command and control by high data-rate commercial Ku-band satellite (MEXSAT5) communications link was implemented for the AIRDAS payload. The data telemetry system is derived from the NERA mobile handheld system that communicates through the INMARSAT series of geo-stationary satellites. AIRDAS data and navigation files are sent from the instrument control computer to the NERA system onboard the aircraft. Data are broadcast through a pair of phased array antennas mounted into the skin of the ALTUS fuselage, which is pre-positioned to acquire signal lock with an INMARSAT geo-stationary communications satellite. The data were then sent by File Transfer Protocol (FTP) login to an internet file server. In our test, individual image file transfers required approximately two minutes for full data delivery.