Improving audio quality in private mode of VHF tactical radicommunication (TRC) / Izmazunardi Izwar Arfani

Izwar Arfani, Izmazunardi (2014) Improving audio quality in private mode of VHF tactical radicommunication (TRC) / Izmazunardi Izwar Arfani. [Student Project] (Unpublished)

Abstract

This paper presents solutions on how to improve an audio quality in Private Mode of VHF Tactical Radiocommunication (TRC). Basically in Private Mode, a 3.333 kHz residual tone carrier was heard at 8 ohms speaker for all the time with or without the presence of voice. This scenario will degrade the voice quality. In order to solve this problem, a Notch Filter was designed. A simulation process for the Notch Filter was done by using Switcher CAD III software. The Notch Filter was fabricated on the PCB board and the measurement in real TRC application was carried out. The results are compared between before and after implementation of Notch Filter. The proposed solution will eliminate the 3.333 kHz residual tone carrier.

Metadata

Item Type:	Student Project
Creators:	Creators Email / ID Num. Izwar Arfani, Izmazunardi UNSPECIFIED
Contributors:	Contribution Name Email / ID Num. Thesis advisor Awang, Robi'atun Adayiah UNSPECIFIED
Subjects:	T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Radio T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Filters (Electric)
Divisions:	Universiti Teknologi MARA, Shah Alam > Faculty of Electrical Engineering
Programme:	Bachelor in Electrical Engineering (Hons.)
Keywords:	Audio, radio, communication
Date:	2014
URI:	https://ir.uitm.edu.my/id/eprint/68068