*Note 1:* The carrier-to-receiver noise density ratio is usually expressed in dB.

*Note 2:* The carrier-to-receiver noise density is given by *C* /k*T* , where *C* is the received carrier power in watts, k is Boltzmann's constant in joules per kelvin, and *T* is the receiver system noise temperature in kelvins.

*Note 3:* The receiver noise power density, k*T* , is the receiver noise power per hertz.