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The selection method of TV field strength meter

2024-03-04 14:20

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.

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