Is this powered by usb wall adapter? thus could be operated with usb battery pack?

I tried using a cheapo power brick (batteries) claiming 5V 2A output. When i turned on the 1014D with no probes attached, it displayed a substantial square-like signal. I immediately turned it off, and did not test further, not wanting to risk damage to the scope from improper power. When using the (correct) wall adapter that came with the product connected to AC, at power on I would see two horizontal lines indicating zero signal, which is correct. The square-like traces suggest that my battery pack is not well enough filtered (maybe there is some pulse-based voltage conversion inside the pack). Perhaps a better quality battery pack would work, maybe someone out there could comment on that. I should add that the 1014D running on its included adapter works great, happy with my purchase.

what is the Operating voltage is it 220/60Hz or not supported

The scope uses a 5 volt wall transformer like the ones for cell phones. so you could just get a 220 volt to 5 volt wall unit.. hope this helps. ps. I'm very happy with this scope. Larry

For the signal gnerator, what is the maximum allowable output current and/or power?

Output voltage is +/- 1.5 V. When shorting out, the voltage drops to ~ +/- 0.5 V

How to calibrate the built-in signal generator?

add another external signal generator to compare signals and watch out for your probe settings X1 x10. you can adjust the probes via set screw. also compare probes (probes could be the fault signal). also you don't want to void the warranty by removing the scope cover.

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1014D Oscilloscope 2 in 1 Digital Oscilloscope DDS Signal Generator, 100X High Voltage Probe, 2 Channels 100Mhz Bandwidth 1GSa/s Sampling Rate Built-in 1GB Storage Space

Product ID: 334469543

⚡100MHz bandwidth x2

💾1GB built-in storage

📊1GSa/s real-time sampling

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Description

⚡ Elevate your diagnostics with pro-grade speed and precision — don’t get left behind!

SIGNAL MASTERY - Integrated DDS signal generator with 14 waveform types and 1000 customizable signals fuels your innovation.
INSTANT CLARITY - One-button AUTO trigger and 7-inch 800x480 LCD deliver effortless waveform visualization—no fiddling required.
INSIGHT AT A GLANCE - Lissajous and FFT views let you analyze phase, amplitude, and harmonic content like a seasoned engineer.
PRECISION MEETS POWER - Dual 100MHz bandwidth channels capture every detail with lightning-fast 1GSa/s sampling.
PRO GRADE CONVENIENCE - Includes 100X high voltage probe and easy cursor measurements for peak-to-peak and frequency readings without math.

The FNIRSI 1014D is a compact, dual-channel digital oscilloscope featuring 100MHz bandwidth and a blazing 1GSa/s sampling rate. It combines a DDS signal generator with 14 waveform options and 1000 customizable signals, all displayed on a crisp 7-inch LCD. With built-in 1GB storage, a 100X high voltage probe, and advanced measurement tools like cursor readouts, Lissajous graphics, and FFT analysis, it’s engineered for professionals demanding accuracy and efficiency in electronics diagnostics.

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1014D Oscilloscope 2 in 1 Digital Oscilloscope DDS Signal Generator, 100X High Voltage Probe, 2 Channels 100Mhz Bandwidth 1GSa/s Sampling Rate Built-in 1GB Storage Space

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