Tektronix Thermometer P6249 Uživatelský manuál stáhnout pdf (Strana 33)

Operating Basics

P6249 4 GHz 5X Active Probe Instruction Manual

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Measurement lead length (Inches)

Frequency

(MHz)

1.2 1.4 1.6 1.8 2.2 2.4 2.6 2.8

Figure 4: Maximum frequency vs. measurement lead length

In order to reach two test points with a P6249, a 2-inch length return

ground lead is used. What is the maximum circuit frequency which

should be measured?

Using the graph shown in Figure 4 as a guide, a 2-inch lead length

yields a 500 MHz maximum frequency.

The low-inductance ground contacts described in Accessories on

page 5 can help you reduce the effects of ground lead inductance on

your measurements.

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Tektronix Thermometer P6249 Uživatelský manuál Strana 33