2023 Upgraded Spectrum Analyzer, SeeSii 4.0 Inch Handheld Small Frequency Analyzer

Works properly and as expected. Was able to use it to analyze signals from wifi, car key fobs, and vco output well. Does the job of a spectrum analyzer without having to pay thousands for a professional one.

Un buen grupo de buenas caracteristicas de medicion muy utiles en el trabajo de campo. Tan pequenho que lo puedes tener en la palma de tu mano y con todo lo necesario para realizar mediciones basicas e intermedias de calidad

I love this device. Sole people say they are too small. But they must have gotten the smaller version. It does more than I know how to do. I use mostly to test antenna SWR and it works great for that. I wish I knew more about the other functions as I know it can do a ton of stuff. It’s great to run a wide sweep of an antenna. It actually helped me finally determine a mobile antenna was bad. Not that mount as I previously thought.

We used this SA to diagnose and correct interference from TV stations that was interfering with a wireless mic system. By seeing where the interference was, we were able to move our wireless channels around the problem areas. It works well in the handheld mode (easy to control the touch screen with the included stylus) and even better when connected through the PC app. The controls (frequency range, RBW, VBW) are straightforward and produce scans that compare with much more expensive SA's. The only problem we ran into was with the PC app: After changing a setting such as frequency or RBW/VBW we sometimes needed to restart the scan or power-cycle the SA to reconnect the USB port. Otherwise, though it works great and is a great value for the cost.

Very nice unit