Common sense of using digital field strength instrument

Digital field intensity meter is different from analog field intensity meter. When testing digital signals, the key index is no longer the level, but the power. Therefore, when you use digital field strength timing, you must first create a local channel list.

Then test the key indicators of digital signal, such as power, MER, BER, etc. When it is necessary to analyze the cause of the fault, we can make a rough judgment with the help of frequency spectrum and constellation diagram. For high-end problems, professional spectrometers are still needed for testing.

The famous manufacturers of field strength instruments in China are Deli in Tianjin, JUSD abroad and Shengli in the United States.