Pocket PC Infrared Information
Most Pocket PC platforms contain an IrDA port to allow infrared communications
with other IrDA devices such as computers, digital phones, and other PDAs.
Although the Pocket PC's IrDA port was not designed to be compatible with
consumer IR devices, UniversalRemoteCE enables the Pocket PC to control many
consumer IR devices by transmitting carefully crafted infrared packets from the
Pocket PC's IrDA port.
Since the Pocket PC's IrDA port was not designed
to be compatible with consumer IR devices, the intensity of the IR signal
emitted from a Pocket PC is much lower than the intensity of the IR signal from
a typical factory remote control; this results in reduced range when controlling
some consumer devices. The range can also be affected by the type and brightness
of the room lighting. Additionally, the IR signal from a Pocket PC is more
sharply focused than that of a typical factory remote, so the Pocket PC's IrDA
port must be pointed in the general direction of the device being
controlled.
Some consumer IR devices use protocols that are incompatible with the Pocket
PC and cannot be controlled with UniversalRemoteCE; however, UniversalRemoteCE
contains Infrared profiles for more than 1000 different consumer IR devices
from over 250 manufacturers. UniversalRemoteCE was developed and tested
using the Compaq iPAQ 3135 / 3635 series of Pocket PC. The typical control
range for most tested consumer devices is between 10 - 15 feet in typical
home lighting conditions; however some devices work well at 20 feet while
others only function at less than 10 feet.