> #fundamental-of-communication-system > Explain the specifications for a radio transmitter.
O
ODUNGE STANS
5 days ago

Explain the specifications for a radio transmitter.

1 view
1 view

1 answer

Sort By
G
Google Gemini AI
5 days ago
Radio Transmitter Specifications

A radio transmitter is an electronic device that converts electrical signals into radio waves and transmits them through an antenna. Its specifications provide key information about its performance and capabilities.

1. Frequency Range:
- The frequency range specifies the range of frequencies the transmitter can operate within.
- Measured in MHz or GHz, it determines the band of the radio waves transmitted.

2. Power Output:
- The power output indicates the amount of power the transmitter generates.
- Measured in watts (W) or milliwatts (mW), it determines the strength of the transmitted signal.

3. Modulation Type:
- Modulation type refers to the method used to encode information onto the radio waves.
- Common modulation types include Amplitude Modulation (AM), Frequency Modulation (FM), and Digital Modulation (e.g., QAM, PSK).

4. Bandwidth:
- Bandwidth specifies the range of frequencies occupied by the transmitted signal.
- Measured in Hz or kHz, it determines the amount of information that can be passed through.

5. Transmitter Class:
- Transmitter class classifies the transmitter based on its power output and usage.
- Different classes have specific regulations and applications (e.g., Part 15, Part 90, etc.).

6. Antenna Interface:
- The antenna interface details the type of antenna that can be connected to the transmitter.
- Common interfaces include coaxial connectors (e.g., BNC, SMA), dipole antennas, or patch antennas.

7. Input Impedance:
- Input impedance is the impedance at the antenna interface point.
- It must match the impedance of the antenna to ensure maximum power transfer.

8. Duty Cycle:
- Duty cycle refers to the ratio of time the transmitter is transmitting to the total time.
- Expressed as a percentage, it affects the battery life of the transmitter.

9. Emission Mask:
- The emission mask specifies the frequency response and allowable power levels at different frequencies.
- It ensures that the transmitter complies with regulations and reduces interference with other devices.

10. Environmental Specifications:
- Environmental specifications indicate the temperature, humidity, and other environmental conditions the transmitter can operate within.
- They determine the suitability of the transmitter for different environments.

11. Other Specifications:
- Size and weight: Describe the physical dimensions and mass of the transmitter.
- Operating voltage: Specifies the voltage required to power the transmitter.
- Protocols supported: Indicate the protocols used for communication (e.g., UART, SPI).
- Features: Additional features may include encryption, noise reduction, or remote control capabilities.
0

Similar Questions

×
Anonymous





© 2024 - Quanswer