Oscilloscope

The answer is definitely yes. This 100 MHz digital oscilloscope is one of the best entry-level digital storage oscilloscopes (DSOs) that ever came out. Although it is not as nice as the expensive ones, it gives functionality, design and robustness per dollar better. This scope is good for general purpose measurement.  For someone with a small budget, the Rigol DS1102E nails the basic function most hobbyists and students require and more.

It has 2 analog input channels and one more for external trigger.  Real-time sampling rate is at 1 GSa/s when acquiring signals on one channel alone and gets 500 MSa/s when both channles are used.  Vertical range is at 2mV/div – 10V/div and has the basic addition, subtraction, multiplication and FFT math functions. Run-time values can also be enabled to get a quick read on the running voltages in the signals. The buttons and knobs are robust enough for everyday wear and tear.  It’s logically arranged so the user is not lost when using it.  It also has a PC software suite for remote control and acquisition. It has the auto function that automatically adjusts and displays the signal being acquired. And just like Tektronix DPO2000B, it has cursor functions such as manual, track and auto measurement modes; this feature makes it at par with more expensive models of its class.

Instrument drivers of the DSO are available in National Instrument’s device driver network which makes it even more popular for students learning LabVIEW and professional engineers looking for a cheap solution for some auto-bench measurement problems. The readily-available driver gives this oscilloscope a professional feel but ultimately it provides convenience for those who aims to control the instrument using LabVIEW. The USB and RS-232 interface makes for a cheap type of automated control of the instrument. Most models of the same design do not have the RS-232 port making it functionally better than other models with 5X the cost.

Due to its popularity, the model has developed a huge user community that can help in promoting the model and also troubleshooting in case breakdown occurs. A huge fan base so to speak is a great help especially for feedbacks for those who are planning on buying it. The automation and software control and PC application development is what makes the huge fan base most advantageous. Users of this 100 MHz digital oscilloscope can make use of a number of resources about the scope and also samples of programs and source codes that can optimize its use.

With this scope’s portable size, it’s a little wonder how such equipment could pack so many features.  The screen resolution is a bit lower compared to other models (320X320) but the color-coded signal per channel makes up for that. The sweep cursor function also display voltage levels while passing through parts of the waveform. The FFT function produces waveforms with lower resolution (disadvantageous if one is looking for frequencies or events such as glitches and sudden peaks) compared to professional brands like LeCroy but this is an o-scope bought at the fraction of the price. The FFT function might be good only for resonance frequency readings and events with lower frequency.

For someone who has used professional oscilloscopes of the same class, not much difference can be seen. Expensive brands usually cramp more features into their products which ends up unused by the customer. For an instrument that is designed for portability, a feature that measures signals in the GHz bandwidth is too much. And most oscilloscopes of the same class would add a few more bucks just to get an interface for remote control.

More value for money, this is the screaming advantage of Rigol DS1102E. Its operational function is logical and comes with a solid feel that rarely comes with a product this cheap. You can view the product's information on www.rigolna.com