[Built-in 2-in-1 Calibration Signal Generator]This Spectrum Analyzer built-in calibration signal generator that is used for automatic self test and low input calibration.When not doing spectrum analyzer,it can be used as signal generator with two frequency outputs,MF/HF/VHF sinus output for 0.1MHZ-350MHz and UHF square wave output for 240MHz-960MHz. [Frequency Range]The Spectrum Analyzer displays 290 scanning points,covering the entire range of low-frequency or high-frequency ranging frequencies.0.1 MHz -350 MHz high quality IF/HF/VHF input,240 MHz -960 MHz low quality UHF input.A switchable resolution band-pass filter suitable for the range from 2.6 kHz to 640 kHz. [PC Control] Spectrum Analyzer can be connected to PC through USB and realizes the serial over USB (CDC) protocol,which can call a number of commands.The Windows driver will be automatically installed after connecting to the Windows computer.The Linux driver is built into the . [Portable Spectrum Analyzer & ESD Protection Function] Spectrum Analyzer is latest version 3.1, new ESD protection function, installed diodes,so that it has more sensitive response performance,efficient anti-static level,better quality, service life.Built-in 650mA battery,rechargeable and portable use for at least 2 hours. Material: Plastic+metal colour: black Package Contents: 1 x Spectrum Analyzer 2 x 20cm RF Cable 1 x USB-C Cable 1 x SMA Telescopic Antenna 1 x SMA Female to Female Connector 1 x Touch Screen Pen 1 x Touch screen paddles With lanyard 1 x English Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.