Carrier-to-receiver noise density

In satellite communications, carrier-to-receiver noise density (C/kT) is the ratio of the received carrier power to the receiver noise power density.
The carrier-to-receiver noise density ratio is usually expressed in dBHz.
The carrier-to-receiver noise density is given by

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.
The receiver noise power density, kT, is the receiver noise power per hertz.
 This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).