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5 Measuring the tracking current
To measure the tracking current with the EVK-M8QCAM or EVK-M8CCAM, follow these steps:
1. Connect a true RMS voltmeter across P1A (VCC) and P1B of the front connector (see Figure 5).
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 equals
1 mA).
4. Perform the test with good signals and unobstructed sky views to ensure that the receiver can acquire
the satellite signals.
For more details, see the circuit in Figure 8.
Figure 5: Example – tracking current measurement
UBX-14002462 - R07
P1A (VCC)
P1B
Part Nr.: 934160100
Early Production Information
Hirschmann
EVK-M8CAM User Guide
P1B
P1A (VCC)
Measuring the tracking current
Page 13 of 24
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