Product description
Use The Local Oscillator Signal And The External Measurement Signal To Mix To Obtain The Difference Frequency Signal, And Calculate The Amplitude Of The External Measurement Signal Through The Detector.
Using A High-Precision Vco Signal Source, The Frequency Of The Heterodyne Signal Can Be Measured Very Accurately.
Since The Scanning Range Is Very Large (35m-4400m), Due To Cost And Other Factors, There Is No Dedicated Detection Circuit For External Measurement Signals, So There May Be Errors In The Measurement Amplitude.
Therefore, The Product Adds Two Parameters: Magnification And Displacement.
Users Can Adjust The Displayed Waveform, Adjust And Calibrate The Amplitude Display. Description: 1. Using stm32f407 microcontroller (main frequency 168M) + 4.3-inch TFTLCD (480x800) color LCD screen
2. Full aluminum alloy shell + rotary encoder control
3. USB powered, full English display
4. Spectrum display range: 35M-4400Mhz; input impedance: 50 ohms
5. : 10khz, 50khz, 100khz, 200khz, 500khz, a total of 5 gears are adjustable
6. Screen scanning points: 700 points
7. Scanning span: 7M (10Khz), 35M (50khz), 70M (100Khz), 140M (200Khz), 350M (500Khz)
8. dBm range: -80dB --10dB (supports manual adjustment of calibration amplitude). This machine does not have an amplification circuit inside. If you need to measure small signals, an external amplifier is required
9. Maximum access signal: 10dB
10. Working mode: superheterodyne scanning spectrum analyzer, single scanning time 800ms
11. The lithium battery charging circuit is integrated internally. Due to logistics safety reasons, this product is shipped without batteries. It is powered by USB by default, and you can add lithium batteries by yourself (lithium battery installation instructions are provided)
Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use
colour: As Shown Package Contents: 1 x Spectrum Analyzer
1 x English instructions 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.