35M-4400MHz Spectrum Analyzer Handheld Simple Measurement of Interphone Signal
$ 49.8
Description
Made of fine quality material, practical, easy to operate and use, wide application range, has a long service life. In the design of this 4.3-inch TFT color LCD spectrometer, I set my goal to achieve the maximum value with the least money. I chose the most cost-effective chip ADF4351 as the reference signal source, which can accurately measure the frequency value, use high-performance mixers and detectors with micro-adjustment software parameters to measure the signal amplitude value, use STM32F4 series microcontrollers and 4.3-inch color LCD screen, black aluminum alloy shell, beautiful and sturdy. Come and experience it. Features: Adopt STM32F407VET6 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, 2500mAh (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: -70dB~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. 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: 1x spectrum analyzer 1x glue stick antenna 1x telescopic antenna 1xTYPE-C charging data cable 1x machine corner pad
