Exercise: Finalizing the FH system by implementing the sender

The last step will be to develop the sender of the “Frequency Hopping (FH)”-system. The sender is based on the Exercise 4. Exercise: Packet Transmission. In addition to this exercise, the following extensions are needed:

• the baud rate need to be reduced to 1.2 kBaude,
• the preamble should be set to 1 Byte,
• the frequency must be changeable and the sender should use the same frequencies as the receiver see Exercise: Scanning faster and
• the sender changes the frequency after transmission of a packet.

This task requires

• Two ready BeagleBone Black equipped with the CC1200 operating at a symbol rate of 1.2 kBaude and a preamble length of 1 Byte.
• no 4C

• the programming is done by extending the source files of exercise 4. Exercise: Packet Transmission.
• Test, if pre-calibration compared to normal calibration improves the stability of the system.

• For simplicity, the sender changes the frequency in round robin manner.
• Sender and receiver should use tree frequencies.