EVK-M8U - User Guide

UBX-15023994 - R05

Measuring tracking current

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6 Measuring tracking current

To measure the NEO-M8U module tracking current with the EVK-M8U, follow these steps:

1. Connect a mean reading voltmeter across P1A (VCC) and P1B of the front connector (see Figure

9).

2. Wait 12 minutes to download all of the GNSS orbital data, or download all the Aiding Data via the

AssistNow Online service.

3. Read the voltage (and average if necessary) on the voltmeter and convert to current (1 mV

corresponds to 1 mA).

4. Perform the test with good signals and clear sky views to ensure that the receiver can acquire the

satellite signals.

For more details, see the circuit in Figure 12.

Hirschman

Part Nr.: 934160100

P1A

(VCC)

P1B

P1B

P1A

(VCC)

Figure 9: Example – tracking current measurement