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[TECH] What is the difference between narrowband and ...
https://radiocrafts.com/kb/difference-narrowband-wideband/
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. The advantage of wideband is the capability to transfer higher data rates. Because of the high radio performance associated with narrowband, the term is being …
Wideband audio over narrowband low-resolution media | …
https://ieeexplore.ieee.org/document/1326029/
This paper proposes a scheme of transmitting or storing a wideband audio stream in a channel or storage medium which is narrowband in nature and with a low resolution data format, such as an 8-bit companded one. In the proposed scheme, signal components in the upper-band part of the wideband beyond the narrowband - are encoded and then the code is embedded into the …
Car Audio / Passive Crossovers, Low Pass ... - …
https://www.the12volt.com/caraudio/passive-crossovers.asp
Narrow Band Pass Filters: Narrow Band Pass filters are commonly used with mid-bass loudspeakers. These allow a narrow band of frequencies to pass. The bandwidth is considered to be narrow when the low pass frequency is less than 10 to 20 times the high pass frequency ("less than 1 or 2 decades"). Different formulas apply to selecting coils and …
Narrowband UHF - RadioReference.com Forums
https://forums.radioreference.com/threads/narrowband-uhf.65050/
274. Location. Western NC. Mar 16, 2007. #1. Hi. My local police dept has moved to narrow band on uhf (12.5khz). None of my current radios will do narrow band, I can receive them fine, but the audio is very low. I really want a new mobile scanner that has this capability but I don't want to break the bank.
Narrow-band Filters
https://www.dspguide.com/ch19/3.htm
The narrowest bandwidth that can be obtain with single precision is about 0.0003 of the sampling frequency. When pushed beyond this limit, the attenuation of the notch will degrade. Figure (c) shows the step response of the band-reject filter. There is noticeable overshoot and ringing, but its amplitude is quite small.
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