Products > Test Equipment
Pocket-Sized 6 GHz 1 TS/s ET Scope
SJL-Instruments:
@points2 re: the video. Yep, something basic (unbox, measure a few signals, eye diagram) is in the works.
Of course, Shahriar's review will be 30 dB better in quality than anything we can make. (And more importantly, unaffiliated.)
points2:
Hi,
--- Quote from: SJL-Instruments on January 06, 2024, 03:10:53 pm ---@points2 re: the video. Yep, something basic (unbox, measure a few signals, eye diagram) is in the works.
--- End quote ---
"basic" !?
Your product has not the price tag of a tinySA / LiteVNA / tinyPFA / etc.. I bought 2 items of each without headache vs the expenses.
Your product is not a 100Eur device, it is 3k (VAT incl.) ; thus not the kind of device any hobbyist pays to check how it works and how it performs.
1ST => be customer oriented : do as many videos as you can to explain the device / perfs / capabilities... a basic unboxing & playing fast with the device in a few min video worths nothing.
The picoscope 9402-05 is the match. x4 more expensive, ok, but capabilities are quite ok.
In this niche market, please do explain how this x4 ratio in price, is 1:1 in some measurements or 1:2 in some other measurements... etc..
--- Quote from: SJL-Instruments on January 06, 2024, 03:10:53 pm ---Of course, Shahriar's review will be 30 dB better in quality than anything we can make. (And more importantly, unaffiliated.)
--- End quote ---
you said earlier : Shahriar's review is queuing... and we reveiw is expected in "a while"
Speed up the process and send your product to any guys (many experts, with many posts & high reliability) in this forum. Pretty sure sure they will do a far better review than Shahriar, because quick & relevant vs the potential of your device for hobbyist.
Don't get me wrong, Shahriar reviews are 1st-class... but it's all about "pro" stuff @ price tag way above the hobbyist budget (see its last videos) ; but any hobyist can learn form him, and that's ok.
All the best :-+
joeqsmith:
--- Quote from: points2 on January 06, 2024, 11:04:18 pm ---... thus not the kind of device any hobbyist pays to check how it works and how it performs.
1ST => be customer oriented : do as many videos as you can to explain the device / perfs / capabilities... a basic unboxing & playing fast with the device in a few min video worths nothing. ...
....
Don't get me wrong, Shahriar reviews are 1st-class... but it's all about "pro" stuff @ price tag way above the hobbyist budget (see its last videos) ...
--- End quote ---
Tend to agree with above statements. I think if I were wanting to compare it, it would be with something like the iC227 below.
I still use my old sampling scope to look at ignition waveforms. Sure, it's 40 years old but it's well made and able to handle a pretty tough environment. Making these measurements with the OPs product may pose a unique problem as they chose USB for an interface. In my experience, that bus is prone to failure in high noise environments, such as looking at ignition sources.
The iC227 is an 11GHz bandwidth Sequential Sampling Oscilloscope. Our Price: $3,762.75
https://us-shop.ichaus.com/mobile/Product.aspx?ProductCode=iC227_Dual_11GHz-_Oscilloscope
SJL-Instruments:
Points taken. To start, we now have an outline for ~8 detailed videos on specific topics with demos. We'll spend the next week planning these in more detail and hopefully starting production.
In full honesty, we cannot promise a fixed timeframe for this, but we understand if you want to withhold purchasing until they're out.
Re: The iC227. We do not have this device, but from the datasheet:
1. The timing precision of the iC227 is 0.5% FS (5000 ppm), vs 15 ppm typical for the GigaWave.
2. The timebase of the iC227 is calibrated and stored in a LUT.
For the GigaWave, we have developed a quite detailed model of the timing of the delay chip that is robust against temperature variation and year-scale aging. We calibrate the dominant parameters in the model once at the time of manufacture (this is the several-hour part), and perform a fast recalibration at each sampled delay during use. The precision is reliably 2 ps RMS @ 20 ns without the fast recalibration step, and ~0.2 ps RMS with this step.
We can only speculate on the iC227, but we would be very surprised if a LUT held better than 10 ps precision over an hour (or if the device is bumped). (The claimed 1 ps is believable immediately after calibration.)
3. The GigaWave is capable of intensity grading (e.g. eye diagrams and modulated signals).
4. (Subjective) We would argue that our software is easier to use (you can drag channel/trigger markers vertically, and scroll/pinch to zoom timebase and vdiv). We have more measurements, FFT, and data export. We are also actively implementing feature requests.
5. We could not find anything like the iC227 with more than 2 channels.
We hope this addressed your concerns. Thanks again for your feedback and steering us in the right direction.
joeqsmith:
I have downloaded and installed your software for Windows. Is there an interface tool kit that will allow me to run it using my own software? For example, say I want to use it as part of some automated test.
Looking at the manual and software, it appears that the export feature only saves the data that is currently on the screen. It also appears that it does not allow all of the traces to be saved to a single file. Can you confirm?
The software seems very easy to drive. When I look at the demo mode, I can see the trigger level marker on the plot but I don't see a time marker. If I pan to the left, it seems to not show data at time 0, but rather 11ns. Rather than having all the data on a single graph, why not allow more options?
--- Quote ---3. The GigaWave is capable of intensity grading (e.g. eye diagrams and modulated signals).
--- End quote ---
I could not figure out how to setup a mask. Is that not supported?
Looking at the manual, I noticed the following comment:
--- Quote ---The main limitation of the GigaWave™ architecture is for signals with infrequent trigger opportunities (500 ktrig/second or lower).
--- End quote ---
A typical ignition system for example would be less than a kHz. I have a very old Tektronix pulse generator head that will produce a <25ps edge. The pulse period is about 120kHz.
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