ham radio friend told me about a very small RF power meter. The price? A very affordable $30. I couldn’t pass it up so I bought one (). The unit is tiny — approximately 2 inches square and 0.75 inches high. Power (5-volt DC) is via a micro-USB connector and the supplied power cable. Signal input is via an SMA connector. It mounts via four standoffs on the bottom. Setup is via five pushbuttons that are used to enter the frequency of the signal you’re measuring and the attenuation if used. My $30 unit goes to 500 MHz but there are)
