The selection method of TV field strength meter

The field strength meter, as the name suggests, is an instrument for measuring field strength. What is the value of the field strength meter μ The unit is V/m, which has a length unit of m. In principle, a level meter (or voltmeter) measures the voltage value at the input port of the instrument, while the voltage (or potential) measured by a field strength meter is the voltage induced by an antenna at a certain point in the air. Strictly speaking, a field strength meter consists of a level meter and an antenna.

The TV field strength meter has many functions, and users can choose according to their needs. Here are some suggestions for choosing a TV field strength meter:

1. Firstly, the selected TV field strength meter needs to meet the needs of one's own measurement.

2. Secondly, it is important to consider products with high cost-effectiveness. If used for equipment debugging and calibration, high-precision field strength meters with an accuracy of ± 1dB or even higher should be selected; If there are multiple measurement functions required, which can observe images, perform spectral analysis, and balance accuracy, a suitable spectral field strength meter with an accuracy of ± 1.5-2.5dB can be selected; If it is used for the installation and daily maintenance of cable TV network end-users, a field strength meter with an accuracy of ± 3dB, small size, and convenient portability can be selected. If it is suitable for measuring cable TV signals and digital TV signals, it is naturally necessary to choose a field strength meter with satellite and digital TV measurement functions.