Test & Measurement

Entry-level oscilloscopes cover 50MHz to 100MHz bandwidth

11th September 2014
Mick Elliott
0

Mixed signal oscilloscopes that can measure analogue and digital signals simultaneously in the three figure price segment have been developed by Rohde & Schwarz subsidiary HAMEG Instruments. The instruments can be expanded at any time from 50 MHz to 70 MHz or even 100 MHz bandwidth by means of a simple upgrade option.

The fanless design of the R&S HMO1002 is another special feature that ensures quiet operation and makes the instrument less susceptible to faults. The oscilloscope’s antiglare display takes up approximately 40 percent of the front-panel area and is easy to read. A logic probe can be connected to the front panel.

An integrated pattern generator enables professional embedded developers to program protocol messages at up to 50 Mbit/s. This makes it possible, for example, to emulate circuit components that are still under development.

Two Kbit are available per channel for the signal patterns generated. The 4-bit counter output (adjustable up to 25 MHz) allows developers to use the pattern generator as a clock source. The instrument's high signal update rate of up to 10,000wfs/s makes it possible to measure signal deviations with utmost precision. Its mask based pass/fail tests are other features appealing to developers.

The three-digit digital voltmeter integrated into the instrument makes it possible to perform voltage measurements simultaneously on both analog channels, with two user-definable parameters each. The digital component tester helps service technicians check the functionality of capacitors, coils and semiconductor elements quickly and easily.

Rohde and Schwarz expect the oscilloscopes to be attractive to the education sector. In the education mode all of the fully automatic analysis tools that measure up to 28 parameters of a signal (QuickView, auto set, auto measurement) are switched off. Those who want to circumvent this function will not get far.

The auto analysis functions can be briefly switched on. However, the result memory clears each time screenshots are made in an effort to record them, leaving correctly implemented manual measurements as the only method of gaining access to screenshots.

Correctly measured screenshots are also labeled, making them clearly recognizable as such to teaching staff.

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