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The sensitivity of the optical receiver is 38 dB

Here's the magical formula to calculate receiver sensitivity: Super simple, right? You're just adding up two numbers! Where: Receiver Sensitivity (dB) is the minimum signal strength needed for reliable reception. For the Basic tab, enter the system noise floor (dBm, over the receiver bandwidth) and the required SNR (dB). It is typically specified in dBm, Watt or microvolt. The transmitter produces a power level of 4 dBm. What are the allowed system losses in dB? These losses are caused by inefficient coupling from the transmitter into. In optical communication systems, sensitivity is a measure of how weak an input signal can get before the bit-error ratio (BER) exceeds some specified number.