What's in the box:

35M-4400M 4.3 Inch LCD Screen Professional Handheld Simple Spectrum Analyzer Measurement of Interphone Signal (Standard)

Made of fine quality material, practical, easy to operate and use, wide application range, has a long service life.

Features:
Adopt stm32f407 single-chip microcomputer (main frequency 168M) and 4.3-inch TFTLCD (480*800) color LCD screen.
Full aluminum alloy housing and rotary encoder control.
Built-in lithium battery, full English display.
Spectrum display range is 35M-4400MHz.
Scope of use: walkie-talkie, plaything remote control, 2.4Gwifi.

Specifications:
Main material: aluminum alloy+metal
Color: black
Screen size: 4.3 inch
Battery: 1 * lithium battery, 2000mAh (included)
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

Note:
This product uses the local oscillator signal and the external test signal to obtain the difference frequency signal, and calculates the amplitude of the external test signal through the detector. Using a high accuracy VCO source, the heterodyne signal frequency can be measured very accurately. Since the scanning range is very large (35M-4400M), because there is no special detection circuit for the external measurement signal due to cost and other factors, the measurement amplitude may have errors. Therefore, the product increases the magnification and displacement parameters, and the user can adjust the display waveform by himself. The amplitude display is adjusted and calibrated.

Packing List:
1 * Handheld Simple Spectrum Analyzer