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19 Oct 2014


Professionals, school laboratories and amateurs can now gain this new, extra affordable digital MSO oscilloscope in a limited offer.

Probably you may have noticed, that company Hameg became a member of Rohde&Schwarz group and new oscilloscopes already carry only an R&S logo. However the name of series HMO remains, which represents for several years products with an excellent price/ performance ratio. This time a new member was added to the HMO series – HMO1002, further decreasing a price level while maintaining many features, which usually can´t be found in this price level. For a standard recommended retail price of 798 Euro it provides really a lot.
Moreover, now we offer you a special limited offer in which you can purchase this oscilloscope for only 610 Eur. The offer is valid for the first five pieces and only until stock sell-out.

The 2-channel 2×50 MHz oscilloscope offers a full MSO functionality and after buying an external logic probe HO3508, we´re able to watch analog and digital signals on one screen at once (ideal for measuring AD/DA converters and similar). With a 1Gsample/s sample rate (512Mhz/ channel), 128k FFT, function generator and various math functions, it provides wide possibilities for analysis of circuits. Unique in this class is a 50 MBit/s arbitrary generator, allowing to create 4 bits wide and 2k long custom samples. At the same time, this generator can be set for example in a way to obtain 25 MHz signal (clock) on its output.

Another unique in this price level is a possibility to precisely measure even weak signals thanks to a real sensitivity of 1 mV/division.
HMO1002 is also available in 2×70 MHz and 2×100 MHz versions, but perhaps the mos interesting is a possibility to upgrade the basic type (with 2×50 MHz inputs) anytime later to 70Mhz or 100MHz bandwidth by means of SW Vouchers.
Detailed information will provide you the HMO1002 brochure.

It´s hard to resist to R&S HMO1002 oscilloscope for 610 Euro - [Link]

18 Oct 2014

by EEVblog @ youtube.com:

Dave tears down the new US$399 Rigol 4 channel 50MHz DS1054Z oscilloscope.
How can they get such incredible value for the price?

EEVblog #674 – Rigol DS1054Z Teardown - [Link]

17 Oct 2014


ajoyraman posted a tutorial on how to make a DIY USB-matchbox oscilloscope, an instructable here:

In order to economize on the cost of an enclosure while still providing an aesthetic unit the Aj_Scope2 is enclosed in a large size cardboard matchbox enclosure.
The USB connection to the PC is on one end while the Audio-Jack for the signals to be monitored is on the other.
A ‘Busy’ LED is provided on one corner at the top and a ‘Reset’ switch is provided diagonally opposite.
The ‘Reset’ switch provides a restart of the micro-controller is the worst-case of hang-up. This typically occurs when the operator selects a trigger threshold which is out of limits with respect to the waveform being observed. If the Aj_Scope2 is operated correctly this switch is seldom used.


DIY USB-Oscilloscope in a matchbox - [Link]

9 Oct 2014


by Glen Chenier @ edn.com:

What I asked for was a general purpose 5GSa/s 1GHz four-channel bench scope. What I got was a 1GSa/s 100MHz two-channel. Still, it is somewhat usable, and less expensive than a fancy temperature-controlled soldering station. But it has bugs – many bugs.

I have been negotiating with the manufacturer to get a firmware update to fix these bugs. After five months, no results. This scope has been designed to accept firmware updates. Good planning. It needs them – desperately. (“Ship now and fix the bugs later. We have a schedule to keep!”)

Before listing all the functional problems, let me elaborate on what I actually like about this scope. The advertised bandwidth is 100MHz, but when feeding in a 300ps edge (ECL directly into the scope with a BNC-T 50 ohm terminator), the measured scope risetime indicates the bandwidth is more like 140MHz. Hurrah for the analog designers!

The scope…from Hell! - [Link]

7 Oct 2014


by Arthur Pini @ edn.com:

Modern mid-range oscilloscopes have more features than most engineers ever use. This article summarizes ten oscilloscope applications that may surprise you. In any event, you may find them useful.

Use the oscilloscope’s fast edge feature and math operations to make frequency response measurements

Frequency response measurements require a source signal that has a flat spectrum. By utilizing the fast edge test signal of the oscilloscope as a step source it is possible to derive the impulse response of the device under test using the scopes derivative function. This can then be applied to the FFT (Fast Fourier Transform) function to obtain the frequency response. Figure 1 shows the steps in the process for both the frequency response of the input signal and that of a 37 MHz low pass filter.

10 tricks that extend oscilloscope usefulness - [Link]

30 Sep 2014


It’s Like a Shield for your Shields! Makes debugging your Arduino projects super fast! by Guido Bonelli Jr @ kickstarter.com:

Do you love Arduino development BUT dread testing your hardware because there is no easy way to attach things like your meter, oscilloscope or probes?

Well fear not, ArduinoNaut, Dr.Duino™ is here to the rescue!

Dr.Duino – Arduino Debugging tool! - [Link]

30 Sep 2014


by Dave Rishavy @ edn.com:

Noise on a signal creates a triggering challenge for test equipment, especially oscilloscopes. Because the instrument itself also contributes noise, small signals in the millivolt range need proper instrument settings prevent noise from overwhelming the signal of interest. Even with larger-amplitude signals, noise can create a condition where a stable trigger is difficult to achieve.

Oscilloscope have built-in features to help deal with the noise. These features can sometimes be buried in menus, or not well known by infrequent oscilloscope users.

View noisy signals with a stable oscilloscope trigger - [Link]

24 Sep 2014


by Martin Rowe @ edn.com:

Teledyne LeCroy has added a touchscreen to its WaveJet oscilloscopes. The WaveJet Touch, with a 7.5-in. touchscreen display, is based on the company’s WaveJet 300 series. The WaveJet Touch comes in two 4-channel models: 350 MHz (WaveJet 334T, $4200) and 500 MHz (WaveJet 354T, $5000). Both models have up to 5 Msamples of waveform memory, sampling at up to 2 Gsamples/s.

500 MHz Oscilloscope for $5000 and a touch screen, too - [Link]

22 Sep 2014

A very brief look at the new WENS 540 Debug Meter with Charles from Trio Test at the Electronex show stand:
This is NOT a review, or my normal blog content, it’s just a quick look because some people may be interested in it. So please, no silly complaints.
A combination 10MHz oscilloscope, 50000 count meter, 8 channel logic analyser, data logger, serial protocol analyser, and digital pattern generator.

WENS 540 Handheld 10MHz Oscilloscope and Debug Meter - [Link]

18 Aug 2014

Dave explains a big trap in high frequency measurement with your oscilloscope. Based on a viewer request, Dave demonstrates how to incorrectly and then correctly measure the signal output level over frequency of your function generator using your oscilloscope. Some whiteboard transmission line theory is thrown in as well.

EEVblog #652 – Oscilloscope & Function Generator Measurement Trap - [Link]





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