How to evaluate the anti-interference capability of two-way radio equipment?
Publish Time: 2024-07-12
When evaluating the anti-interference capability of two-way radio equipment, the following key indicators are mainly concerned:
Signal-to-noise ratio (SNR): The signal-to-noise ratio is an important indicator for measuring signal quality, that is, the ratio of signal power to noise power. In the test, the signal-to-noise ratio is calculated by sending a known signal and recording the signal power and noise power at the receiving end. The higher the signal-to-noise ratio, the stronger the signal reception capability of the device in a noisy environment and the stronger the anti-interference capability.
Bit error rate (BER): The bit error rate is a measure of the proportion of erroneous bits received by the receiving end. In the test, the transmitter sends a known test signal, and the receiver records the received bit data and compares it with the data sent by the transmitter to calculate the bit error rate. The lower the bit error rate, the fewer errors caused by interference during the transmission process of the device, and the stronger the anti-interference capability.
Packet loss rate: The packet loss rate is a measure of the proportion of data packets lost during transmission. The packet loss rate can be calculated by sending known data packets and counting the number of data packets lost at the receiving end. A lower packet loss rate usually means that the device has higher transmission stability and stronger anti-interference ability in complex environments.
In addition, it is also necessary to consider the anti-interference performance of the device in different frequency bands and modulation modes, as well as the actual communication effect in different environments (such as cities, mountains, oceans, etc.). In order to comprehensively evaluate the anti-interference ability of the equipment, professional test equipment and software can be used to simulate various possible interference scenarios for testing.
In summary, the anti-interference ability evaluation of two-way radio equipment is a complex and meticulous process that requires comprehensive consideration of multiple indicators and factors. Through scientific and rigorous testing methods, the anti-interference ability of the equipment can be accurately evaluated, providing an important reference for the selection and application of the equipment.
