Xtreme Accessories APL00 AirPlay for the iPoD Shuffle User Manual
Xtreme Accessories, LLC. AirPlay for the iPoD Shuffle Users Manual
Users Manual
Model: FM-228/IPS-APL-00
Description: FM Transmitter
Date: 8.April.2005
Introduction
FM-228/IPS-APL-00 is a stereo audio signal transmitter over FM band. It works as a slave device of iPod
Shuffle and controlled by the signal command from iPod Shuffle through UART interface. It operates in either
one of the two frequency bands. The two bands are hardware programmable by factory jumper setting of open and
short. One is 88.1 to 107.9 MHz for U.S. The other one is 76.1 to 89.9MHz for Japan. Both are in the step of 100
kHz.
Features
a. A LCD displays 4 digits in 7-segment format with one decimal place. Digits show the transmission frequency
in the unit of MHz.
b. Two buttons to adjust the transmission frequency.
c. Three buttons to memory transmission channel.
d. An automobile power rates 12-24 Volts and 500mA whose is from the external device.（Sealed lead-acid
batteries.
e. Stereo analog audio input is from external device.
f. The operation mode of FM-228/IPS-APL-00 is controlled by external device.
Appearance
Figure 2
Fi
g
ure 1
Operation
The default frequencies are 88.1 to 107.9 MHz for US .
The front of FM-228/IPS-APL-00 has the said LCD and five control buttons. The LCD shows the transmission
frequency in MHz with one decimal place and the display will switch off automatically for power saving purpose
after no further key operation in 1sec. One of the control button symbolic “—“ has the function of tuning the
transmission frequency downward in 200KHz step. Another control button marked “＋” tunes the frequency upward
in 200KHz. Another control button marked “1” “2” or “3” preset memory control button.
Preset the memory buttons “1” “2” or “3”. will pressing the two buttons “＋” or “—” step the transmission
frequency any channel purpose after Holding “1” or “2” or “3” for 2sec the LCD show one flash read-in memory
channel complete .
Should FM-228/IPS-APL-00 unit plug-in iPod shuffle pressing the play button the volume should be set up to 50%
after 2sec pressing the “1” or “2” or “3” button read the memory frequency channel.
Pressing the two buttons “＋” or “—” step the transmission frequency up or down respectively. Holding down the
two buttons “＋” or “—” for 1.5sec will accelerate the stepping frequency. For accelerate activation in 30sec.
FM-228/IPS-APL-00 will turn on and start transmission for receiving the “Begin Transmission” command through
UART interface or receiving audio signal through the audio plug for 1sec.
System will turn off automatically for receiving the “End Transmission” command though UART interface or not
receiving audio signal for 60sec.
LCD of FM-228/IPS-APL-00 will only be activated and turn on either system is plugged into car's power 12Vdc or
one of the control buttons is pressed. LCD will turn off automatically for no further activation in 8sec.
