- 1 What is narrow band and broad band?
- 2 What is a narrow band system?
- 3 What is narrow band and wide band frequency modulation?
- 4 What do you mean by narrow band and wideband FM?
- 5 Where is narrow band used?
- 6 What is narrow band width?
- 7 What is a narrow band called?
- 8 What is the bandwidth of narrow band FM?
- 9 Which of the following is narrow band antenna?
- 10 What is condition for narrow band FM?
- 11 What is a wide band spectrogram?
- 12 What are the types of FM?
- 13 What is wide band frequency?
What is narrow band and broad band?
In Narrowband a narrow set of frequencies are considered and communication happens only in those frequencies. Less number of frequency sets are used as it is designed to work only with less frequencies. Broadband covers a wide bandwidth and uses different signals and frequencies in its spectrum.
What is a narrow band system?
In radio communications, a narrowband channel is a channel in which the bandwidth of the message does not significantly exceed the channel’s coherence bandwidth. That is, no channel has perfectly flat fading, but the analysis of many aspects of wireless systems is greatly simplified if flat fading can be assumed.
What is narrow band and wide band frequency modulation?
Frequency modulation can be classified as narrowband if the change in the carrier frequency is about the same as the signal frequency, or as wideband if the change in the carrier frequency is much higher (modulation index > 1) than the signal frequency.
What do you mean by narrow band and wideband FM?
A narrow band FM is the FM wave with a small bandwidth. The modulation index mf of narrow band FM is small as compared to one radian. Hence, the spectrum of narrow band FM consists of the carrier and upper sideband and a lower sideband. Practically, the narrow band FM systems have mf less than 1.
Where is narrow band used?
Narrowband radio channels are typically used for shorter-range, fixed-location wireless applications, such as radio-frequency identification (RFID) and commercial vehicle remote keyless entry (RKE) devices.
What is narrow band width?
The terms “narrowband” and “wideband” refer to the actual radio channel bandwidth. A common definition (ETSI) of narrowband is when 25 kHz or less is used for the radio channel. The benefit of using a narrow channel is the lower noise bandwidth and hence better sensitivity and range.
What is a narrow band called?
narrowband. (redirected from Narrow-band) Also found in: Medical, Encyclopedia.
What is the bandwidth of narrow band FM?
Hence, it is Narrow Band FM. The formula for Bandwidth of Narrow Band FM is the same as that of AM wave. Substitute fm value in the above formula. Therefore, the bandwidth of Narrow Band FM wave is 4KHz.
Which of the following is narrow band antenna?
Narrow band antennas are antennas designed for operation at specific frequency. Common narrow band antenna designs are dish antennas, dipole, loop, microstrip patch or Yagi-Uda antenna [1–4].
What is condition for narrow band FM?
Narrow Band FM is a FM signal that only uses a small portion of a normal FM channel. Narrowband FM mainly used in two-way wireless communications.
What is a wide band spectrogram?
A wide band spectrogram (named after a wide bandwidth filter) has good time resolution, meaning that changes in frequency over small intervals of time can be detected. For a wide band spectrogram, the time interval for each spectrum is small, so the wide band spectrogram cannot make fine frequency distinctions.
What are the types of FM?
There are two different types of frequency modulation used in telecommunications: analog frequency modulation and digital frequency modulation.
What is wide band frequency?
In communications, a system is wideband when the message bandwidth significantly exceeds the coherence bandwidth of the channel. Wideband in this context is usually considered to cover frequencies in the range of 50–7,000 Hz, therefore allowing audio with richer tones and better quality.