The maximum transmission power of the CC2541F128RHAR is +4 dBm.
Frequency hopping can be implemented using the device's built-in frequency synthesizer and the SmartRF04 evaluation board. Refer to the CC2541F128RHAR user's guide for more information.
The maximum data transfer rate of the CC2541F128RHAR is 2 Mbps.
To configure the CC2541F128RHAR for low power consumption, use the device's power modes (e.g., idle, sleep, and hibernate) and adjust the transmission power and data rate according to your application's requirements.
Yes, the CC2541F128RHAR can be used with an external antenna. However, the antenna must be designed and matched to the device's frequency band and impedance.