Comes with the correct power supply for seamless operation. One minor issue: it needs internal calibration, but functions perfectly otherwise. This spectrum analyzer offers reliable performance for your signal analysis needs.

Using this AVCOM PSA - 37D spectrum analyzer is easy. First, make sure you connect it to the correct power supply that comes with it. When you turn it on, if you notice any inaccurate readings, it might be because it needs internal calibration. Don't worry, this is a normal maintenance step. As for maintenance, keep it in a clean and dry place. Avoid exposing it to extreme temperatures or humidity. If you're not using it for a long time, store it properly. Regularly check the power supply for any signs of damage. And always remember to follow the basic safety rules when operating electrical equipment.