... div to 300 MHz/divSelection of 1, 2, 5 steps(automatic), ZERO Span, FULL Span (9KHz to 3 ... dBmV, dB V, mV, W, mW, uWDisplay Scale linearity≤ ±1.5 dB / 70 dB (10dB / div), ≤ ±1.5dB / ... div)Frequency Response (0 dB attenuation)-3.5 ~ 1.5 dB (100kHz ~ 10MHz)±1.5 dB (10MHz ~ 3GHz) Reference LevelRange- ... dBm to +20 dBmResolution0.1 dB stepsAccuracy :± 1.5 dBSecond Harmonic Distortion ≤-60 dBc, -40 dBm ...