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--- network_protocol_programming_lab:fh_sender [2020/06/11 10:40] – [Requirements] rathke
+++ network_protocol_programming_lab:fh_sender [2021/04/19 12:46] (current) – [Requirements] rathke
@@ Line 13: / Line 13: @@
   * 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 Smart RF Studio and no Evaluation Kit
+  * no 4C
 ===== Tasks  =====
-  * the programming is done by extending the source files from the previous lesson [[network_protocol_programming_lab:robust|Exercise: Making the system robust against disturbances]].
+  * the programming is done by extending the source files of exercise [[network_protocol_programming_lab:15.3_4_exercise|4. Exercise: Packet Transmission]].
-  * Extend your program by pre-calibration.
+  * Test, if pre-calibration compared to normal calibration improves the stability of the system.
-  * For testing, start your program and use the same test scenarios used by [[network_protocol_programming_lab:robust|Exercise: Making the system robust against disturbances]].
-  * To open the possibility to test, that pre-calibration is really faster than auto-calibration, make sure, that both calibration methods can be enabled and disabled.
+===== Hints  =====
+  * For simplicity, the sender changes the frequency in round robin manner.
+  * Sender and receiver should use tree frequencies.