Posted 20 hours ago

Osciloscopio fnirsi 1014d - generador de señal DDS de osciloscopio digital en dos en uno, ancho de banda de 100 MHz de 2 canales 1gsa / s tasa de muestreo

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Not commenting specifically on the merits of this oscilloscope but there seems to be a general misconception of what a 100 MHz spec means. This is the frequency at which the measured value of the amplitude of a sine wave will be 3db lower than its actual value. This represents about a 30% error in measurement so you should not expect to be able to accurately capture 100 MHz frequency signals. At about 30 MHz, the expected error rate would be around 3%. probe (such as ultrasonic welding machine, ultrasonic cleaning machine, etc.) or even 1000x probe (such as high-voltage end of high-frequency transformer, coil of induction cooker, etc.) must be used to measure high-frequency and high-voltage signal Solemnly remind Connect the probe clip to the ground end (negative) of the infrared receiver board, and the probe to the data pin of the infrared receiver Been busy with the SD card part of the code and managed to get FatFs into the mix and filled in the functions for talking to the card. The “nice signal there” @08:43 is completely bogus. If I could see the grid and text properly you could do a risetime & bandwith calculation from it, but the rounded tops are still too suspicious, you also see the averaging here.

GitHub - pecostm32/FNIRSI-1013D-1014D-Hack: Resources GitHub - pecostm32/FNIRSI-1013D-1014D-Hack: Resources

Switching down to 50nS/div kills the program, but this most likely has to do with the fact that the 50nS processing is only partialy implemented. Ikascope WS200 Oscilloscope and ScanaQuad SQ50 Logic Analyzer & Pattern Generator Review – Part 1: UnboxingThis new scope uses a different touch panel than the other one I have. Costed me a couple of days to fix it. For the same price or budget, you’re probably better off buying a second-hand one with better specs. I’m glad he finally put a terminator on that line for the frequency response measurement. Almost had to call him out. High-Performance Sampling: Achieves a real-time sampling rate of 1GSa/s, ensuring detailed signal representations.

FNIRSI-1014D 7 Inch TFT LCD Display Screen 2 In 1 Dual FNIRSI-1014D 7 Inch TFT LCD Display Screen 2 In 1 Dual

Gear selection: the output voltage of power amplifier is generally below 40V, and the maximum test of 40V in the 1x gear is enough (both probe and oscilloscope are set to the 1x gear).As part of what is on EEVBLOG, resources for the reverse engineering of the FNIRSI-1013D scope are put together in a single repository. Getting Started with IkaScope WiFi Pen-Oscilloscope, and ScanaQuad SQ50 USB Logic Analyzer & Signal Generator

FNIRSI 1014D - 2 in 1 digital oscilloscope: DDS signal gener FNIRSI 1014D - 2 in 1 digital oscilloscope: DDS signal gener

If I look at this review, it does not test the capabilities and flaws of this fnirsi thing (I won’t call it an oscilloscope) He just puts a few of the simplest repetitive waveforms into it, and then concludes it’s able to show some picture on screen. And Indeed, this fnirsi is capable of putting something on the screen that (most often) resembles the signal it’s measuring. The trouble with this thing is that you can’t trust it because it hides to much and there is too much you can’t see, and that is why it’s bad. When the two channels are used at the same time, the ground clamps of the two probes must be connected together. It is strictly forbidden to connect the ground clamps of the two probes to different potentials, especially the different potential terminals of high-power equipment or 220 v. otherwise, the oscilloscope motherboard will be burned. Because the two channels are grounded together, connecting to different potentials will lead to the short circuit of the internal ground wires of the motherboard, and all oscilloscopes are same; The weird transition which is a clear indication of averaging (i.e, you will never see any glitch). Managed to create a firmware update file based on the original scope code, but when I updated my new scope it f-ed up the touch panel. trigger mode indicator, divided into auto, single and normal; auto is automatic trigger, sinle is single trigger and normal is normal triggerThis device is fitted with a built-in DDS function signal generator, enabling it to produce 14 kinds of standard function signals and a customizable chopping signal. Plus, it’s capable of storing up to 1000 customized cut-off signals for future use. Enhanced Safety of FNIRSI 1014D High Bandwidth and Sampling Rate: Offers 100MHz * 2 analog bandwidth and a sampling rate of 1GSa/s (1X = 5MHz, 10X = 100MHz), ensuring accurate signal representation. From another reviewer I saw pretty decent X-Y graphs on this scope, but it’s hard to trust them because of the averaging.

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