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Questions and Answers
What is EIRP a measure of?
What is EIRP a measure of?
- The direction of maximum radiation of an antenna
- The actual power radiated by an antenna
- The gain of an antenna in a certain direction
- The equivalent power that would be radiated by an isotropic antenna (correct)
What is the gain of an isotropic antenna?
What is the gain of an isotropic antenna?
- 0 dBi (correct)
- 1 dBi
- 10 dBi
- -3 dBi
What is a characteristic of an isotropic antenna?
What is a characteristic of an isotropic antenna?
- It radiates power in all directions (correct)
- It has a gain of 10 dBi
- It amplifies the signal actively
- It is a directional antenna
What does an antenna with 0 dBi represent?
What does an antenna with 0 dBi represent?
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What is not a characteristic of all antennas?
What is not a characteristic of all antennas?
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Study Notes
Antenna Attributes
- EIRP (Equivalent Isotropically Radiated Power) is a measure of the equivalent power that would be radiated by an isotropic antenna in a certain direction.
- Isotropic antennas radiate power uniformly in all directions and have a gain of 0 dBi, which is a reference point for comparing the gain of other antennas.
- Not all antennas amplify the signal; some antennas are passive, meaning they only redirect or focus the signal without amplifying it.
- An antenna with 0 dBi is not faulty, but rather, it is a reference point indicating that the antenna has the same gain as an isotropic antenna.
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