Description:138M-4.4G signanl generator?spectrum analyzer?can connect tracking generatorsignanl generator and spectrum analyzer frequency range:138MHz-4.4GHz MAX step:1K output power(reference):-2.35dBm@200M?-2.63dBm@500M?-2.69dBm@1G,-2.89dBm@2G?-2.66dBmBM@3G?-5.36dBm@4G?-7.65dBm@5G?-10.42dBm@6Gfrequency accuary(calibration)?+-0.1k@1GHzspectrum analyzer max liner input power:+8dBmspectrum analyzer not damage input power:+20dBmnoise level: -70DBM@0.5Gpower:+5V/0.35A,USB2.0,USB3.0interface:USB,SMAPackage : 1 x Analyzer 1 x USB cable 2 x SMA cable