The FNIRSI DPOS350P is a professional 4-channel digital oscilloscope with high bandwidth, high sampling rate, and advanced signal analysis capabilities. Featuring touchscreen control, intelligent triggering, and multiple measurement modes, it delivers accurate waveform analysis for electronic development, circuit debugging, electronic design, and industrial maintenance. Features 4-in-1 Electronic Measurement Platform: The DPOS350P integrates a 350MHz digital oscilloscope, 50MHz signal generator, 200K~350MHz spectrum analyzer, and 50MHz frequency response analyzer, providing a complete solution for signal measurement and analysis. High-Speed Waveform Capture: Featuring 1GSPS real-time sampling rate, 350MHz analog bandwidth (single-channel mode), and 50,000 wfm/s waveform refresh rate, it captures fast-changing and low-probability transient signals with high accuracy. 7-Inch HD Touchscreen Display: The 1024×600 IPS touchscreen delivers clear waveform visualization with grayscale and color temperature modes, enabling efficient operation in different measurement conditions. Advanced Signal Generation & Analysis: The built-in 50MHz signal generator supports 14 standard waveforms and custom waveform output. The spectrum analyzer covers 200K~350MHz for EMI testing, RF signal analysis, and high-frequency measurements. 400V Protection & Fast Charging: Designed with 400V high-voltage input protection and QC18W fast charging, the DPOS350P provides safer operation and up to 2-hour full charging. Data Storage & USB Export: Supports storage of up to 500 waveform files and 90 screenshots, with USB data export for convenient waveform analysis and measurement documentation. Specifications Basic Parameters: Power-on configuration 5 preset items Charging requirements QC18W - 12V/1.5A (Type-C) Languages Chinese / English / Russian / Portuguese Battery specifications 3.7V, 8000mAh lithium battery Screen technology 7" IPS Screen, 1024 x 600 pixels Standby time ~3 hours Total power consumption 10W Charging time Startup ≈ 5 Hours Interaction mode capacitive touch screen Heat dissipation Air cooling Expansion interface USB data port Dimensions 190mm*128mm*37mm Automatic shutdown 15 minutes ~ 1 hour / off Firmware upgrade Support .iso image upgrade Oscilloscope Parameters: Channels 2CH Bandwidth 350MHz Rise time 1ns Max sampling rate 1GSa/s Memory depth 47Kpts Input impedance 1MΩ / 14PF Time base range 5ns ~ 50s Roll time base 50ms ~ 50s Vertical sensitivity 2mV ~ 20V(1X) Vertical range 16mV ~ 160V(1X) DC accuracy ±2% Time accuracy ±0.01% Input coupling DC / AC Probe attenuation 1X / 10X / 100X Hardware bandwidth limit 150M / 20M High resolution mode 8bit ~ 16bit Parameter measurements 12 types Cursor measurement Time, Period, Frequency, Level, Voltage Trigger detection Digital trigger Trigger channel CH1/CH2 Trigger mode Auto / Single / Normal Trigger edge Rising edge / Falling edge Trigger suppression L1 ~ L3 Trigger level Manual / Automatic 10% ~ 90% Screenshot storage 90 pictures Waveform storage 500 groups Background grid display / hide Waveform movement Coarse adjustment / Fine adjustment Overvoltage protection Withstand voltage 400V Waveform brightness Adjustable Simple FFT display ✔ Digital fluorescence ✔ Color temperature display ✔ X-Y mode ✔ ZOOM time base ✔ One-key automatic adjustment ✔ One-key return to zero ✔ Data browser ✔ Signal Generator Parameters: Waveform types 14 standard functions + captured waveform Frequency 0 ~ 50MHz(sine wave only, other waveforms up to 10M/5M/3M) Amplitude 0 ~ 5VPP Offset -2.5V ~ +2.5V Duty cycle 0.1% ~ 99.9% Frequency resolution 1Hz Amplitude resolution 1mV Offset resolution 1mV Duty cycle resolution 0.1% Customizable captured waveform 500 groups Frequency Response Analyzer Parameters: Excitation signal frequency 10Hz ~ 50MHz (Latest firmware) Excitation signal amplitude 0 ~ 5VPP Excitation signal offset -2.5V ~ +2.5V Excitation frequency count 20 ~ 500 Cursor measurement Frequency / Gain / Phase Operating mode Single / Cyclic System calibration ✔ Spectrum Analyzer Parameters: Conversion method FFT FFT length 4K ~ 32K Frequency range 200KHz ~ 350MHz Level range -60dBmV ~ +260dBmV Cursor measurement Frequency / Amplitude Marking parameter Maximum energy harmonic Waterfall chart ✔ 3D waterfall chart ✔ Automatic adjustment ✔ System calibration ✔ ⚠ Special Precautions Both channel probe grounds must be connected to the same potential. Different ground potentials may cause short circuits and damage the oscilloscope. Maximum BNC input voltage: 400V (with 1X probe). Use the included charger only. Avoid USB or other equipment power sources. Use 100X/1000X probes for high-voltage and high-frequency measurements.
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