Different ramp up signals

DECT is an ETSI standard used world-wide for home, business and public applications. One of the principal characteristics for DECT systems is interworking. In order to verify that, the receivers have been tested emulating the ramp up signals transmitted by several commercially available handsets. The testing has been done in an experimental set-up making use of a "ad hoc" board connected to a DECT tester. The measurement results pointed out severe malfunctions of some receivers depending on the type of received ramp up signals. On the basis of such results proper amendments have been approved both for standardisation and for testing.