Dave dissects and then powers up the Tektronix TDS220 oscilloscope used in the Mud Run. Did it survive?
EEVblog #690 – TDS220 Oscilloscope Autopsy - [Link]
In this tutorial Dave describes what AC trigger coupling is on an oscilloscope and why it can be useful. Not only on old analog CRT oscilloscopes, but modern digital scopes as well.
How and why is it different to AC channel input coupling?
Also, use of the 50% trigger control, and how the venerable DS1052E is still more usable than the new DS1054Z.
EEVblog #685 – What Is Oscilloscope AC Trigger Coupling? - [Link]
by EEVblog @ youtube.com
Dave investigates two very serious issues with jitter on the Rigol DS1000Z series oscilloscopes, including the DS1104Z and new DS1054Z
Some sort of modulated sampling/trigger jitter problem at 5 microsecond intervals (the “5us jitter problem”). And severe jitter with the AC coupled trigger mode, a problem which is also present on the DS2000 series scopes as well.
EEVblog #683 – Rigol DS1000Z & DS2000 Oscilloscope Jitter Problems - [Link]
by Martin Rowe @ edn.com:
Teledyne LeCroy has announced the LabMaster 10-100Zi, the world’s first 100-GHz real-time oscilloscope. First demonstrated in 2013, the LabMaster 10-100Zi acquisition module for the LabMaster 10 Zi oscilloscope makes a significant jump in bandwidth over the previous record of 65 GHz, also held by Teledyne LeCroy.
100 GHz real-time oscilloscope arrives - [Link]
Farnell element14 have announced that they will be stocking the BitScope BS10 measurement device which combines a 2-channel USB oscilloscope, spectrum analyzer, 8-channel logic analyzer and function generator. You can use it with a PC running Windows or Linux, an Apple Mac or even a Raspberry Pi. Sampling rate is up to 40Msample/s giving it an analog bandwidth of 20MHz. The software supports frame rates beyond 20Hz and includes a ‘digital phosphor’ display mode. Resolution is up to 12bits.
Farnell element14 and the BitScope - [Link]
Today, we’ll be discussing Rigol’s MSO2302A Mixed Signal Oscilloscope from the MSO2000A series. Starting at $1,239, this oscilloscope features 300 MHz bandwidth, with 2 giga-samples per second, a memory depth of 14 megapoints (Mpts), with an option up to 56 megapoints. The large 8 inch high resolution screen typical to Rigol scopes allows for easy review of your data. 2 channel input and has an ethernet connection for networking and USB ports to interface with computers, save waveforms to USB storage devices, or print directly to printers.
Tech Lab – Rigol MSO2000A Series Oscilloscopes - [Link]
by EEVblog @ youtube.com:
In this tutorial Dave demonstrates the seldom used and often little understood mathematical integration function available on your modern digital oscilloscope. And demonstrates a practical example use for it in accurately measuring the total power consumption of a microcontroller that sleeps and then wakes up and does some processing before shutting down again. By getting the total area under the current curve.
EEVblog #662- How & Why to use Integration on an Oscilloscope - [Link]
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]
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]
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]