The PSLE-L-200D from Polaris is a Satellite Link Emulator for geostationary satellites that operates from 950 to 1950 MHz with a bandwidth of up to 200 MHz. It is an ideal solution for satellite modem testing, satellite to earth station RF link testing, spacecraft payload testing and in general testing systems using satellite communications. The device provides an accurate simulation of propagation delay, path loss, and Doppler frequency shift for closed-loop testing of satellites and earth station terminals. The PSLE-L-10D is available in a rack mount unit that measures 19 x 7 x 21 inches.