User's Manual

Telit GE863-GPS
Hardware User guide
1vv0300714, Rev. ISSUE#0, - 21/02/06
Reproduction forbidden without Telit Communication written authorization – All Right reserved – Right of modification reserved page 51 of 76
NOTE: The GE863-GPS audio path connected to the car kit hands free amplifier MUST be the
external one (EAR_HF), otherwise the echo cancellation will not be done due to the difference in the
echo canceller characteristics of the GE863-GPS internal audio path from the external audio path.
An example of car kit amplifier schematic can be: