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Product description: NDN DF4321C Analog Oscilloscope - 20 MHz 2 Channels
The DF4321C is a portable oscilloscope that combines classic tube technology with the convenience of digital readout . Equipped with a range of useful features, such as TV triggering, ALT and CHOP modes , and automatic trigger level tracking , it is ideal for analyzing analog signals. Easy-to-read LED displays allow you to quickly monitor amplifier and time base settings. The DF4321C is an attractive choice for both professionals and hobbyists.
NDN DF4321C analog oscilloscope - 20 MHz 2 channels.
The analog oscilloscope is characterized by simple and convenient operation.
Main features of the DF4321C oscilloscope
- 20 MHz bandwidth, two channels : allows analysis of a wide range of analog signals
- Vertical sensitivity down to 1 mV/div : ensures accurate observation of low voltage signals
- Time base range from 1 μs/div to 0.5 s/div : precise analysis of fast and slow waveforms
- LED displays : digital presentation of amplifier and time base settings
- TV (H/V), AUTO, NORM triggering : wide range of waveform synchronization options
- ALT, CHOP, XY, ADD modes : various signal presentation modes
- Channel 1 output : allows signal analysis in external systems
- Spot Brightness Modulation (Z-axis) : makes it easier to assess the signal level
- Double measuring probes included : ready to use right out of the box
Practical applications
The NDN DF4321C oscilloscope is widely used in electronics repair, technical education, and measurement labs . With high sensitivity of 1 mV/div, a bandwidth of up to 20 MHz, and convenient signal synchronization functions (AUTO, NORM, TV), it enables accurate analysis of analog waveforms in real time. The device is ideal for testing and diagnosing audio systems, measuring pulse signals, tuning analog circuits, and also for educational purposes – for demonstrating the basics of electronics and oscilloscope measurements.
The DF4321C is equipped with a rectangular oscilloscope tube with a diagonal of 15 cm.
Elements included in the set.
Technical specifications of the oscilloscope
- Lamp type: rectangular, 6", green phosphor
- Screen size: 8 cm x 10 cm
- Anode voltage: approx. 2 kV
- Z axis: sensitivity 5 Vp-p, bandwidth DC ~ 2 MHz
- Vertical sensitivity: 1 mV/div to 5 V/div ±3% (step 1-2-5)
- Vertical band: DC ~ 20 MHz
- Input impedance: 1 MΩ ±2% // 25 pF ±5%, via 10:1 probe - 10 MΩ ±5% // 16 pF ±2%
- Max. input voltage: 300 V (DC + ACp-p)
- Operating modes: CH1, CH2, ALT, CHOP, ADD
- Time base: 0.1 μs/div to 0.5 s/div ±3%, 21 calibrated positions
- Stretch x10: max deflection 10 ns/div
- Linearity error: ±5% (x1), ±10% (x10)
- Trigger modes: AUTO, NORM, TV(H), TV(V)
- Trigger sources: CH1, CH2, LINE, EXT, VERT
- XY mode: sensitivity 1 mV to 5 V/div ±3%, bandwidth DC: 0 MHz to 1 MHz, AC: 10 Hz to 1 MHz, phase shift < 3˚ (DC ~ 50 kHz)
- Calibrator signaling: square wave 1 kHz ±2%, 0.5 V ±2%
- Power supply: AC 110 V (99 V to 121 V) / 230 V (198 V to 242 V), 48 Hz to 62 Hz
- Power consumption: 30 W
- Operating temperature: 0°C to 40°C
- Humidity: 35% to 85%
- Dimensions: 370 x 310 x 130 mm
- Weight: 6.5 kg
Contents of the set
- NDN DF4321C Oscilloscope
- 2 measuring probes (1:1, 10:1)
- Power cord
- User manual
