A system including an external medical data telemetry device to
communicate with an implantable medical device (IMD). The external
medical data telemetry device includes a processor, a reconfigurable
radio-frequency (RF) transceiver circuit, at least one far-field antenna,
and a user interface. The reconfigurable RF transceiver circuit modulates
an outgoing IMD data signal and demodulates an incoming IMD data signal
using a modulation type that is selectable from a plurality of modulation
types by the processor. The processor selects the modulation type using
information entered by a user through the user interface.