FNIRSI DPOS350P 4-in-1 350 MHz 1 GSa/s Tablet Oscilloscope for Signal Analysis

Overview The FNIRSI DPOS350P is a 4-in-1 tablet test instrument combining a 2-channel, 350 MHz, 1 GSa/s digital oscilloscope with a signal generator, spectrum analyzer, and frequency response analyzer. Its 7-inch 1024 × 600 IPS capacitive touchscreen, USB data port, waveform and screenshot storage, and portable battery power support electronic development, circuit debugging, electronic design, industrial maintenance, signal measurement, and analysis. Select the required US or EU plug option. Features Four integrated functions: 350 MHz oscilloscope, 50 MHz signal generator, 200 kHz–350 MHz spectrum analyzer, and 10 Hz–50 MHz frequency response analyzer. 7-inch IPS capacitive touchscreen with 1024 × 600 pixels; supports grayscale, digital fluorescence, and color-temperature display. USB data port supports screenshot viewing/copying and firmware upgrades using .iso image upgrades. Storage capacity: 1 GB, up to 90 screenshots and 500 waveform groups; includes a data browser. Supports Chinese, English, Russian, and Portuguese interface languages; five power-on preset items. Selectable automatic shutdown from 15 minutes to 1 hour, or off. 3.7 V, 8000 mAh lithium battery; charging requirement: QC18W, 12 V/1.5 A via Type-C. Total power consumption: 10 W. Air cooling is specified. Anodized aluminum and ABS+PC casing construction is specified. Oscilloscope Specifications Channels 2CH Bandwidth 350 MHz Rise time 1 ns Maximum sampling rate 1 GSa/s Waveform refresh rate 50,000 wfm/s Memory depth 47 Kpts Input impedance 1 MΩ / 14 pF Time base range 5 ns–50 s Roll time base 50 ms–50 s Vertical sensitivity 2 mV–20 V (1X) Vertical range 16 mV–160 V (1X) DC accuracy ±2% Time accuracy ±0.01% Input coupling DC / AC Probe attenuation 1X / 10X / 100X Hardware bandwidth limit 150 MHz / 20 MHz High-resolution mode 8-bit–16-bit 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 400 V Waveform brightness Adjustable Simple FFT display Supported Digital fluorescence Supported Color-temperature display Supported X-Y mode Supported ZOOM time base Supported One-key automatic adjustment Supported One-key return to zero Supported Data browser Supported Signal Generator Specifications Waveform types 14 standard functions plus captured waveform Frequency 0–50 MHz (sine wave only; other waveforms up to 10M / 5M / 3M) Amplitude 0–5 Vpp Offset -2.5 V to +2.5 V Duty cycle 0.1%–99.9% Frequency resolution 1 Hz Amplitude resolution 1 mV Offset resolution 1 mV Duty-cycle resolution 0.1% Customizable captured waveform storage 500 groups Frequency Response Analyzer Specifications Excitation signal frequency 10 Hz–50 MHz (latest firmware) Excitation signal amplitude 0–5 Vpp Excitation signal offset -2.5 V to +2.5 V Excitation frequency count 20–500 Cursor measurement Frequency / gain / phase Operating mode Single / cyclic System calibration Supported Spectrum Analyzer Specifications Conversion method FFT FFT length 4K–32K Frequency range 200 kHz–350 MHz Level range -60 dBmV to +260 dBmV Cursor measurement Frequency / amplitude Marking parameter Maximum energy harmonic Waterfall chart Supported 3D waterfall chart Supported Automatic adjustment Supported System calibration Supported Basic Specifications Power-on configuration 5 preset items Charging requirements QC18W, 12 V/1.5 A (Type-C) Languages Chinese / English / Russian / Portuguese Battery 3.7 V, 8000 mAh lithium battery Screen 7-inch IPS, 1024 × 600 pixels Standby time Approximately 3 hours Total power consumption 10 W Interaction mode Capacitive touchscreen Heat dissipation Air cooling Expansion interface USB data port Dimensions 190 × 128 × 37 mm Automatic shutdown 15 minutes–1 hour / off Firmware upgrade Supports .iso image upgrade Applications Supported uses include electronic development, circuit debugging, electronic design, industrial maintenance, signal measurement and analysis. The spectrum analyzer is specified for EMI testing, RF signal analysis, high-frequency measurements, and harmonic detection. The frequency response analyzer supports Bode analysis for amplifier, filter, and power-loop response testing. What's Included 1 × DPOS350P host 2 × 350 MHz probes 1 × QC18W fast charger 1 × USB data cable 1 × alligator clip 1 × user manual 1 × packaging box 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: 400 V with a 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. Visual Details Features and Design The DPOS350P is a 2-channel, 1 GSa/s, 8-bit tablet oscilloscope with a 50,000 WFM/s waveform update rate. The DPOS350P is presented as a 4-in-1 instrument with 350 MHz oscilloscope, 50 MHz signal generator, 200 kHz–350 MHz spectrum analyzer, and 10 Hz–50 MHz frequency response analyzer functions. The DPOS350P is labeled with 8–16-bit technology. The 8–16-bit technology is stated to filter noise for improved signal detection and display, enabling better analysis of signal details and characteristics. The DPOS350P is labeled with a digital fluorescent grayscale and color-temperature display. Digital fluorescence technology is stated to provide signal clarity and color precision. The advanced spectrum analyzer covers a 200 kHz–350 MHz frequency range. The spectrum analyzer provides manual controls for start/stop frequency, bandwidth, reference level, attenuation, and FFT length. The high-voltage input stage withstands up to 400 V in any configuration. The high-voltage input stage is stated to safeguard against voltage spikes. The built-in frequency response analyzer supports 10 Hz–50 MHz Bode plot analysis. Bode plot analysis provides adjustable frequency, excitation amplitude, and offset. The DPOS350P has an auto power-off timer. The timer graphic is marked at 15 min, 30 min, 45 min, and 1 hour. The DPOS350P has an integrated 3.7 V, 8000 mAh battery. The battery supports QC 2.0 fast charging. The front panel is labeled DPOS350P and 350MHz 1GSa/s. The DPOS350P supports Chinese, English, Russian, and Portuguese language settings. The casing is described as rugged anodized aluminum and ABS+PC. The product graphic claims the casing provides heat dissipation. A 150M/20M hardware bandwidth limiter filters high-frequency components above 150MHz/20MHz. The product is stated to maintain full 350M analog bandwidth at 2mV sensitivity. Long Time Base Flow Mode is intended for real-time monitoring of slow voltage changes, such as battery charge/discharge curves. Digital Fluorescence X-Y Mode uses CH1 as the X-axis and CH2 as the Y-axis to generate closed-loop curves for amplitude, frequency, and phase comparisons. The DPOS350P is equipped with 1GB storage. The storage is stated to save up to 90 images or 500 waveforms for secondary analysis. The DPOS350P is identified as a 4-IN-1 350 MHz tablet oscilloscope. The oscilloscope is labeled 2CH, 1GSA/S, 8BIT, and 50000 WFM/S. Bandwidth is 350MHz. Sampling rate is 1GSA/S. The DPOS350P is labeled 350 MHz and 1 GSa/s. The DPOS350P graphic states 8-bit to 16-bit technology and shows resolution-mode choices from 8 bit through 16 bit. The device bezel is labeled 350 MHz and 1 GSa/s. The DPOS350P is promoted with digital fluorescence, grayscale, and color-temperature display modes. The signal generator supports 14 waveform types. The signal generator frequency is adjustable from 0 to 50 MHz. The spectrum analyzer covers a 200 kHz to 350 MHz frequency range. Spectrum-analyzer controls include start/stop frequency, bandwidth, reference level, attenuation, and FFT length. The DPOS350P is stated to have a high-voltage input stage that withstands up to 400V in any configuration to safeguard against voltage spikes. The DPOS350P has a built-in 50M frequency response analyzer. Bode plot analysis covers 10Hz–50MHz. Auto shutdown can be set from 15 minutes to 1 hour, or turned off. The DPOS350P has an auto power-off timer. The DPOS350P has an integrated 3.7V/8000mAh battery. QC 2.0 charging technology delivers 18W fast charging. The DPOS350P supports Chinese, English, Russian, and Portuguese interface languages. Language selection is available in the device settings menu. The device uses rugged anodized aluminum and ABS+PC casing for durability and heat dissipation. A 150M/20M hardware bandwidth limiter filters high-frequency components above 150 MHz or 20 MHz to reduce noise and harmonics. Zoom Time Base Expansion magnifies selected waveform sections for detailed analysis. The oscilloscope provides 2 mV/div sensitivity while maintaining full 350M analog bandwidth. A sealed shielding design is specified to minimize noise interference. Long Time Base Flow Mode supports real-time monitoring of slow voltage changes, including battery charge and discharge curves. Digital Fluorescence X-Y Mode uses CH1 as the X-axis and CH2 as the Y-axis to generate closed-loop curves for amplitude, frequency, and phase comparisons. The oscilloscope supports Auto, Single, and Normal trigger modes. Single and Normal trigger modes capture transient signals, while Auto mode is intended for measuring periodic signals. Manual Cursor Measurement is provided for measuring amplitude, frequency, and period in noisy signals. FFT Spectrum Analysis qualitatively displays spectral components of the current signal. The device has 1GB of storage and can save up to 90 images or 500 waveforms for secondary analysis. The picture browser displays saved screenshots as thumbnails. Specifications and Performance The DPOS350P has 350 MHz bandwidth. The DPOS350P sampling rate is 1 GSa/s. The DPOS350P signal generator supports 14 waveform types. The signal generator has adjustable frequency from 0 to 50 MHz. Screen size is 7 inches. Screen resolution is 1024 x 600 pixels. Charging requirements are QC18W - 12V/1.5A. Battery specifications are a 3.7V, 8000mAh lithium battery. The oscilloscope has 2 channels and supports 1X / 10X / 100X probe attenuation. Bandwidth is 350MHz; the hardware bandwidth limit is 150M / 20M. The signal generator provides 14 standard functions plus captured waveform; duty cycle is 0.1% ~ 99.9%. Signal-generator frequency is 0 ~ 50MHz for sine wave only; other waveforms are up to 10M/5M/3M. Frequency resolution is 1Hz. The DPOS350P has a 7-inch IPS touchscreen with 1024 × 600 resolution. The touchscreen is described as capacitive and covered with durable tempered glass for scratch resistance. The screen size is 7 inches. The screen resolution is 1024 x 600 pixels. The oscilloscope has 2 channels and probe attenuation options of 1X / 10X / 100X. Oscilloscope bandwidth is 350MHz; hardware bandwidth limit is 150M / 20M. Frequency-response analyzer excitation signal frequency is 10Hz-50MHz; cursor measurement covers frequency, gain, and phase. Frequency-response analyzer excitation signal amplitude is 0 ~ 5VPP; operating mode is single / cyclic. Interfaces and Connections The DPOS350P has 2-channel input. The two input channels are specified as dual 1 MΩ (18 pF) inputs for simultaneous signal measurement. The DPOS350P connects to a PC via USB. USB connection supports viewing or copying screenshots. The DPOS350P has 2 input channels for simultaneous signal measurement. Each stated input channel has 1 MΩ input impedance and 18 pF input capacitance. The DPOS350P connects to a PC via USB to view or copy screenshots. The DPOS350P supports ISO file updates for firmware upgrades. Package Contents The package includes one DPOS350P host. The package includes one packaging box. The packing list includes one DPOS350P host. The packing list includes one packaging box.