Spectrum Analyzer Handheld Spectrum Analyzer Measurement 35M-4400M USB power supply, full English display Screen size: 4.3 inch Spectrum display range: 35M-4400MHz Input impedance: 50 ohms RBW: 10KHz, 50KHz, 100KHz, 200KHz, 500KHz, a total of 5 gear positions can be adjusted Screen scan points: 700 points Scanning span: 7M (10KHz), 35M (50KHz), 70M (100KHz), 140M (200KHz), 350M (500KHz) dBm range: -80dB~10dB (support manual adjustment of calibration amplitude), the unit does not have an amplifier circuit inside, if you need to measure small signals, you need an external amplifier. Maximum access signal: 10dB Working mode: superheterodyne scanning spectrum analyzer, single scan time is 800ms Item size: 145 * 70 * 30mm / 5.7 * 2.8 * 1.2in Item weight: 200g / 7.1ounce Package size: 300 * 140 * 70mm / 11.8 * 5.5 * 2.8in Package weight: 335g / 11.8ounce