The nRF21540 EK is equipped with SubMiniature Version A (SMA) connectors for easy connection to laboratory equipment.
Figure 1. Connecting a spectrum analyzer
When measuring, consider that the connector and test probe adds loss to the RF signal. See the following table for more information.
| Frequency (MHz) | Loss (dB) |
|---|---|
| 2440 | 1.0 |
| 4880 | 1.7 |
| 7320 | 2.6 |