The SPS-350 from Synergy Microwave Corporation is a Analog Phase Shifter with Frequency 344 to 356 MHz, Phase Shift 180 Degree, Insertion Loss 0.9 to 1.6 dB, Control Voltage 0 to 15 V, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount. More details for SPS-350 can be seen below.