Question: A typical telemetry carrier frequency 230 MHz may be used with a bandwidth of ±320kHz using A.M. a data with a bandwidth of 4 kHz has to be transmitted. Subcarrier having a frequency 32 kHz and 44 kHz are modulated. The frequency bands utilized are
Answer:
MCQ: A typical telemetry carrier frequency 230 MHz may be used with a bandwidth of ±320kHz using A.M. a data with a bandwidth of 4 kHz has to be transmitted. Subcarrier having a frequency 32 kHz and 44 kHz are modulated. The frequency bands utilized are
Correct Answer:
A. 28 kHz to 40 kHZ.
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Related Questions
- 1. Twenty –one data channels, with subcarrier center frequencies ranging from 400Hz to 165 kHz have been designed for telemetry use. All have a frequency deviation of ± 7.5%. if the index of modulation is 5, the intelligence bandwidth of channel 1 for a center frequency of 3000 Hz is____________Assume the frequency multiplexing has been used.
- 2. In frequency multiplexing systems, if the subcarrier frequency deviations are proportional to the center frequency , the scheme is referred to having:
- 3. Time division multiplexing requires
- 4. Time division multiplexing is used when
- 5. Modem is an acronym of
- 6. If an information is required to be stored over a short interval of time
- 7. The machine interpretable outputs from an analog transducer can had from
- 8. Digital instruments have input impedance of the order of
- 9. if four flip flops are connected in cascade, they serve as
- 10. The LEDs, or their display require
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