Radio Receiver Design
This reference focuses on understanding and designing radio receivers and systems, presenting the characteristics of individual receiver components and their interaction in cascade.
TABLE OF CONTENTS Radio Receiver Design
1.6: Other Standards
1.6 Other Standards
Several other quantities are also expressed in decibels. Although they do not fit the exact definition of a decibel because they are not power ratios, they are still useful for convenient representation of large ratios.
dBK
dBK is a temperature measurement. Its reference is 1K.
| (1.34) |  |
| (1.35) |  |
We will use dBK when we discuss amplifier noise, satellite communications and link budgets.
Example 1.5: dBK
Convert 430 K to dBK.
Solution -
Using Equation 1.35,
| (1.36) |  |
dBHz
This is a measure of bandwidth. The reference is 1 hertz.
| (1.37) |  |
| (1.38) |  |
We will use dBHz when we discuss noise bandwidth and receiver sensitivity.
Example 1.6: dBHz
Convert 30 kHz to dBHz.
Solution-
Using Equation 1.4,
| (1.39) |  |
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