FNIRSI® DPOS350P 4-IN-1 350MHz 1GSPS Tablet Oscilloscope Signal Generator Spectrum Analyzer Frequency Response Analyzer
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 laboratory testing, electronic design, and industrial maintenance.
Features
- 4-in-1 Multi-Function Test 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, analysis, and testing.
- 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 abnormal 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 testing environments.
- 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 test report creation.
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.
Select Plug
From $98.00
Original: $279.99
-65%FNIRSI® DPOS350P 4-IN-1 350MHz 1GSPS Tablet Oscilloscope Signal Generator Spectrum Analyzer Frequency Response Analyzer—
$279.99
$98.00Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
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 laboratory testing, electronic design, and industrial maintenance.
Features
- 4-in-1 Multi-Function Test 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, analysis, and testing.
- 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 abnormal 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 testing environments.
- 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 test report creation.
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.
