Items Tagged with 'oscilloscopes'

ARTICLES

Quick, Simple Way to Measure the System Bandwidth of a Scope-Probe System

While we get the scope’s bandwidth from the vendor, as soon as we add a cable, probe, or amplifier to the scope, we decrease the system bandwidth. The new system bandwidth is as important to know as the scope’s bandwidth, but it is generally difficult to measure except in a calibration lab. We offer a simple method of evaluating the transfer function and system bandwidth of any probing system using a wide band noise source. This method not only gives us information about the probes and interconnects, but it also tells us how the scope responds to the measurement system, information which cannot be measured by a VNA alone.


Read More

Bandwidth, Current Load and Power-Rail Measurements

How do you achieve high bandwidth in your measurements while minimizing current load on your DUT? Given that your DUT is a power rail, you really don't want to draw too much current from it., or your measurement system will distort the rail. But these two measurement criteria are at loggerheads with each other. It's a quandary, and it has to do with the fundamental nature of signals on interconnects.


Read More

Mitigate RF Pickup In Power Rails

Measuring the noise on a power rail seems to be a straightforward task. However, there are some basic pitfalls that can cause incorrect, or even downright strange, results. Let's look at one of these challenges: RF pickup. We'll demonstrate the effect of RF pickup on a power-rail measurement, and then we'll show you an effective means of mitigating that effect.


Read More

Pico Technology Increases the Bandwidth of its PicoScope 9300 Family of Sampling Oscilloscopes

Pico Technology has increased the bandwidth of its PicoScope 9300 family of Sampling Oscilloscopes with two new 25 GHz models.  The USB-controlled Sampling Oscilloscope, available only from Pico, stands as one of very few low-cost, high-integrity options for viewing and measuring RF and microwave signals, paths and networks. Sampling Oscilloscopes are the cost-effective solution to today’s proliferation of gigabit-per-second datastreams and their copper, wireless and optical fiber interconnect.


Read More