The E8000-TT from Quartzlock is a Time and Frequency Standard with Frequency 10 MHz, Output Power 7 to 10 dBm, Phase Noise -157 to -110 dBc/Hz, Short Term Stability 0.0004 to 0.005 ppb. Tags: Rack Mount, Time & Frequency Standard. More details for E8000-TT can be seen below.