What is a receiver sensitivity test?

Detailed Answer

A receiver sensitivity test measures the minimum signal strength the receiver can accept while meeting the bit error rate requirement. Test method: a standard signal generator outputs from -80dBm and attenuates step by step, recording the level when the BER exceeds the limit. Industrial-grade standards usually require below -105dBm (BER <10⁻³). The LDER LD series passes this test with margin. Consumers cannot test this themselves — refer to the manufacturer's published test report when buying.