A few weeks ago during International Oscilloscope Week, Rohde & Schwarz released its RTE range of oscilloscopes. My review of the RTE written on February 26 was based on a phone briefing. This morning, product manager Dave Rishavy stopped by for a live demo of the RTE 1104, a four-channel, 1 GHz model.
The oscilloscope, also mentioned in See Test Equipment at EE Live! 2014, will be on display at EE Live! 2014. In fact, Rohde & Schwarz will offer a training session at the event.
The RTE 1104 oscilloscope from Rohde & Schwarz was released February 25, 2014. It will be on display at at EE Live! 2014.
The first thing I noticed about the oscilloscope was its clean front panel. That's because R&S uses a single knob for vertical settings on all four channels. Touching any of the four channel buttons changes the color ring around the knob. Fortunately, you can set the color of any trace and with it, the associated ring color. That's nice for people like me who have trouble distinguishing certain colors.
The RTE oscilloscope has features that will appeal to engineers who need to troubleshoot power supplies or find sources of EMI. The video below shows how you can correlate time-domain and frequency-domain measurements. Rishavy used a set of near-field probes (available as an option) to find radiated emissions on the demo board.
Did you see how we produced a spectrum of the pulses detected by the near-field probe? The RTE let us find the emissions related to the ringing while still viewing the entire emissions spectrum.
During the demo, we noticed an 850 MHz signal would sometimes appear. It was from Rishavy's phone, which uses AT&T. To get a better look, we used the mask-test feature to draw a box where the signal would sometimes appear, then set the oscilloscope to trigger when a signal entered the box. I drew the box right on the screen. The figure below shows the result.
The oscilloscope can trigger whenever a signal enters a defined area of the screen.
In the next video, we see a few other features. I particularly liked how the RTE oscilloscope lets you store setups. When you tell it to store a setup, the instrument creates a screen image and adds it to the setup history, which is accessible by touching an icon at the top of the screen. You can then slide the stored images and when you find the one you want, just touch it and the RTE goes to the associated stored configuration.
When you need to get data about a waveform, just touch another icon and the waveform; a movable window appears. It provides basic information such as min and max voltage, but you can customize it to add information such as frequency and rise time.
Like any new piece of equipment, the RTE oscilloscope will take a few tries for you to get used to it. I found that drawing a box around a portion of a waveform to get a zoom easy to do, something other oscilloscopes also let you do, though I still prefer to use the finger gestures like I do on my phone or iPad. For those of you who prefer knobs, the RTE has them, although we hardly used them for the demo.
Have you tried the RTE oscilloscope or any of its predecessors? Did you buy one? Tell us why or why not.