The LS1291D from Tabor Electronics is a Signal Generator with Frequency 100 KHz to 3 GHz, Resolution 0.001 Hz, Output Power -90 to 15 dBm, Phase Noise -136 to -125 dBc/Hz, SSB Phase Noise -145 to -132 MHz @ 100 MHz to 1 GHz. Tags: Analog Signal Generator. More details for LS1291D can be seen below.