Description
A class of students shares a bench, and one build often has several nodes worth comparing. So the Rigol DHO804 oscilloscope gives a teaching lab four analog channels, 70 MHz of bandwidth and a 7-inch touchscreen. Lost in HCM lists it for rental and sale in Vietnam, which suits both a single term and a permanent lab.
Four inputs for a teaching bench
Rigol names education as a target for the DHO800 family. With four channels, a pair of students can probe an input, a filter stage, an output and a reference at the same time. Then they can see how a change in one place moves the others.
The Rigol DHO804 oscilloscope in brief
| Parameter | DHO804 |
|---|---|
| Analog bandwidth | 70 MHz |
| Inputs | 4 analog |
| Maximum sample rate | Up to 1.25 GSa/s |
| Memory depth | Up to 25 Mpts |
| Waveform capture | Up to 1,000,000 wfms/s in UltraAcquire mode |
| Vertical resolution | 12 bit |
| Display | 7-inch 1024 x 600 capacitive touchscreen |
The source lists four analog inputs for this model and does not mention an external trigger. So ask Lost in HCM if a lab exercise needs one.
Capture depth for lab work
Memory goes up to 25 Mpts and sampling up to 1.25 GSa/s. Capture speed reaches 1,000,000 waveforms per second in UltraAcquire mode. In addition, 12-bit resolution gives students finer steps to read than an older 8-bit scope would show, so small ripple stays visible.
Reading the photo
The picture is a DHO800 series reference. Four numbered BNC inputs sit under a 7-inch screen, while one USB port sits at the left edge. The screen shows a waveform pane next to a spectrum pane.
Term rental or lab purchase
Rent for a semester when budgets are tight. Buy instead when the lab runs the same exercises every year. To start, request a quote from Lost in HCM for the Rigol DHO804 oscilloscope. Tell the team how many benches you plan to equip. Other models sit in the oscilloscopes category, and Rigol keeps manuals at rigol.com. You can also contact SMK Vietnam for guidance.
DHO804 questions
What separates the DHO804 from the DHO802?
The DHO804 lists four analog inputs, while the DHO802 lists two analog inputs plus an external trigger. Both list 70 MHz.
What should a school confirm before ordering?
Confirm the probe count, firmware, installed licenses and any memory option. Also ask about condition and warranty scope.
Does it suit serial-bus lessons?
The family targets embedded debugging, so it can. Still, ask whether decode software comes with the unit.
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