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Com Lab

This document provides information about an FM transmitter project created by students at Wesleyan University - Philippines College of Engineering. It includes an introduction that discusses what a personal FM transmitter is and how it allows portable audio devices to broadcast music through a car or home stereo without a wired connection. It then lists the materials used to build the FM transmitter, including a wireless microphone kit, voltage regulator, audio plug, and various connecting wires and hardware.

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Ross Sonny Cruz
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29 views2 pages

Com Lab

This document provides information about an FM transmitter project created by students at Wesleyan University - Philippines College of Engineering. It includes an introduction that discusses what a personal FM transmitter is and how it allows portable audio devices to broadcast music through a car or home stereo without a wired connection. It then lists the materials used to build the FM transmitter, including a wireless microphone kit, voltage regulator, audio plug, and various connecting wires and hardware.

Uploaded by

Ross Sonny Cruz
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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FM TRANSMITTER

WESLEYAN UNIVERSITY - PHILIPPINES

COLLEGE OF ENGINEERING

Mabini Extension, Cabanatuan City

In partial Fulfillment

Of The Requirements For The Subject

PRINCIPLES OF COMMUNICATION - LAB

(COM 1 - LAB)

CRUZ, ROSS SONNY O.

MATIAS, JOHN AUSTIN S.

TAN, JOHN JEZZPER L.

ILUSTRISIMO, RONNEL D.J.

GONZALES, IRWIN NICHOLAS F.

(BSECE-3B)

DEC, 2018
INTRODUCTION

• BRIEF DISCUSSION

A personal FM transmitter is a low-power FM radio transmitter that broadcasts a signal from a


portable audio device (such as an MP3 player) to a standard FM radio. Most of these transmitters plug
into the device's headphone jack and then broadcast the signal over an FM broadcast band frequency, so
that it can be picked up by any nearby radio. This allows portable audio devices to make use of the louder
or better sound quality of a home audio system or car stereo without requiring a wired connection. They
are often used in cars but may also be in fixed locations such as broadcasting from a computer sound
card throughout a building.

Being low-powered, most transmitters typically have a short range of 100–300 feet (30–100 metres),
depending on the quality of the receiver, obstructions and elevation. Typically they broadcast on any
FM frequency from 87.5 to 108.0 MHz in most of the world, 76.0 - 95.0 MHz for Japan, 65.0 - 74.2 MHz
for Russia (or 88.1 to 107.9 MHz in the US and Canada).

Personal FM transmitters are commonly used as a workaround for playing portable audio devices on car
radios that don't have an Auxiliary "AUX" input jack or Bluetooth audio connectivity. They are also used
to broadcast a stationary audio source, like a computer or a television, around a home. They can also be
used for low-power broadcasting and pirate radio but only to a very limited audience in near proximity.
They can also be used as a "talking sign" in real estate sales or similar.

MATERIALS

➢ Microphone wireless FM kit


➢ LM7809 Voltage Regulator
➢ Banana Plug
➢ 3.5 mm Audio mono plug
➢ Connecting Wires
➢ DC Jack
➢ Hex Spacers
➢ Screws

SVHEMATIC ME

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