Narrow-Band (also referred to as short-wave) is a term used to describe the amplitude of a radio device. Narrow-band devices are limited to an average of 400m.
A digital signal requires a repeater, which retransmits the signal in its original form, and an analog signal requires an amplifier, which increases the strength of both the signal and the noise it has accumulated.
You could attach an external directional antenna. Google for 'wireless antenna'.
duplexer is the device that can separated the trasmitted signal and received signal.
how do we protect our cable network from signal jammer
A signal starts at point X. As it travels to point Y, it loses 10db. At point Y, the signal is boosted by 5db. As the signal travels to point Z, it loses 7db. What is the db strength of the signal at point Z?
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Before sending your signal to the receiver,it should passed through the narrowband filter(whose band is narrow).the noise appearing at the output of the filter is narrowband noise..
narrowband
Yes
Some disadvantages of spread spectrum technique signals include increased complexity in design and implementation, higher power requirements, and potential interference with other systems using traditional narrowband techniques. Additionally, spread spectrum signals may have reduced data rates compared to narrowband signals.
Radio services that operate on 468 MHz may use both wideband (25 KHz) bandwidth and narrowband (12.5 KHz) bandwith until December 31, 2012. After that date, only narrowband bandwidth will be authorized. For additional accurate updated information on the FCC's 2013 Part 90 Narrowband Mandate, please see link.
Here are some differences between broadband ISDN and narrowband ISDN: 1) Narrowband ISDN uses 64 kb/s channel, while broadband ISDN uses 100 mb/s channels. 2) Broadband uses call relay, while narrowband uses frame relay. 3) In narrowband, ISDN information carries narrow frequency, while in broadband, ISDN uses a wide band of frequency.
When the frequency sensitivity of the modulating signal is small,the bandwidth of the FM is narrow. The narrowband FM has one carrier term two sideband terms.The modulation index is also small compared to one radian.
Yes, a transmitter concentrates signal energy at a single frequency or in a small range of frequencies through a process called modulation. This allows the transmitter to transmit data efficiently over a specific bandwidth without causing interference with other signals.
You cannot fix a cap on the range of quality factors :)
true
Raymond Roy Hitchcock has written: 'Narrowband voice system'