(Click Picture to Enlarge)
(Optional Case and Antenna)
Hi-Fi FM Stereo
Transmitter - Kit or Assembled
Be "On Air" with your own radio station! This transmitter is
an exciting product that will broadcast a high quality stereo signal in
the 88 – 100MHz FM band. It can be connected to any type of stereo audio
source such as personal computer, CD player, Walkman, television, tape
deck or stereo system to transmit stereo sound with excellent clarity
throughout your home, office, yard or camp ground.
It can also be used in a car to play CDs through your car radio when
attached to a personal CD player. Other applications could be listening to
a satellite radio station through any FM radio. In addition, it can be
connected to your personal computer or laptop to enable listening to
Internet radio stations or pre-recorded digital music (such as MP3 files).
The circuit includes a 9V battery snap and a 3.5mm stereo jack mounted
right on the board for easy connection to any audio source. An ON/OFF
switch as well as an "On-Air" LED indicator are also
incorporated on the board.
The circuit is based on the popular BA1404 stereo broadcaster IC which
contains all the complex circuitry for generating the stereo FM signal. A
38 KHz crystal provides a stable sub-carrier for the stereo signal. The
oscillator circuit is stable enough for reliable reception even on
digitally tuned FM radios. Separate right and left input level adjustments
are also included.
Any FM receiver can be used to listen to
- Supply voltage: 6 - 9V DC (Includes snap for 9 volt battery, 12V DC
with minor modification)
(Need a Power Supply?)
- Frequency adjustable: 88 to 100MHz
- Power consumption: < 20mA
- Power Output ~ 1mW
- Transmission range: approx. 400 feet (unobstructed)
- Input sensitivity: adjustable from 50mV
- Channel separation: > 30dB
- Includes 3.5mm stereo jack
- L: 3" W: 2-1/8" H: 1".