nRF24L01+ module fixed about as well as it can be, by adding an appropriate capacitor on the PCB antenna, and a 1.0 uF capacitor across the power pins for good measure.

The NRF24L01+ Arduino wireless transceiver shield is packed with features that make it a versatile tool for various applications. The shield includes two momentary push buttons, an LED, and a slot ...

DDS module and an Arduino instead of dropping a few hundred dollars on a commercial unit. As he points out, you probably only need an analyzer for a day or two while you set up an antenna. Report ...