Don’t you know the position of the NFC antenna because it’s not indicated on the device? TraceCase offers a feature that measures the magnetic field strength so that you can detect the point with the highest magnetic field strength.
Detect the field strength on the lower part of the payment terminal: 2 blocks.
Detect the field strength on top of the NFC symbol: 4 blocks.
(In the same way you can also detect the intensity of the magnetic field on your smartphone or wearable.)
Step 2
When you know where to measure, start the trace, place the antenna onto the terminal, and slowly move the card onto the antenna. Now, all magnetic coils are parallel to each other so that conditions for signal transmission are ideal.
The Conclusion
Keep these simple facts about near-field communication in mind and you’ve covered the electrical basics for successful tracing.
