Using the ANT500 is easy. First, decide on the frequency you need and adjust the length of the antenna between 20 cm and 88 cm. Connect it to your device with the SMA male connector. You can rotate the shaft and adjust the elbow to get the best signal reception. When it comes to maintenance, keep it in a dry place. Wipe it with a soft cloth regularly to keep the stainless - steel surface clean. Just a reminder, the HackRF One is not part of this product, so you'll need to get it separately if you want to use it with the ANT500.