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What is TDMA and How Does It Work?-HQT Solutions
http://www.hqtsolutions.com/news-information/tdma-how-it-works.html
TDMA stands for “Time-Division Multiple Access.” Like FDMA, or “Frequency-Division Multiple Access,” TDMA is a technology that allows multiple conversations to share the same radio channel. Although the goal is the same, …
TDMA - The RadioReference Wiki
https://wiki.radioreference.com/index.php/TDMA
From The RadioReference Wiki Time Division Multiple Access (TDMA) is a generic name for digital transmission formats that subdivides a (12.5 kHz) channel into a fixed number of time slots (usually 2) during which digital data and voice is …
Audio Rectification and TDMA/GSM EMI - In Compliance …
https://incompliancemag.com/article/audio-rectification-and-tdmagsm-emi/
From the basics of TDMA theory, the GSM signal, has a multiframe structure with 26 frames (4.6 ms each) in 8 timeslots lasting for 120ms. Note that horizontal scale is 2ms so a 4.6ms pulsed waveform (217Hz) is obtained which lies in the audible range. Figure 2: Near field around the GSM phone
AN-1496 Noise, TDMA Noise, and Suppression …
https://www.ti.com/lit/an/snaa033d/snaa033d.pdf
• TDMA Noise (“buzz”) in GSM mobile phones is generated from a 217Hz waveform which produces an audible noise when coupled into the audio path and conducts to the speaker, earpiece, or microphone4. Further details of this type of noise will follow. Before delving into solutions that minimize the problem TDMA Noise customers have ...
TDMA Noise Countermeasures, Reception Sensitivity ...
https://product.tdk.com/en/techlibrary/solutionguide/suppression-filter_varisotr_microphone.html
If communication waves from cellular or Wi-Fi sources interfere with and intrude into microphone lines for smartphones or other devices, some of their components will become noise components in audible bands known as "TDMA noise", and may …
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