The VS-508 from Vectron International is a Voltage Controlled SAW Oscillator with Frequency 800 to 2900 MHz, Output Power 0 to 6 dBm, Phase noise -154 to -95 dBc/Hz, APR(pullability) ±20 ppm, Supply Voltage 3.13 to 5.25 V. Tags: Low G Sensitivity. More details for VS-508 can be seen below.