- 16:58, 22 November 2021 diff hist +47 Exercise 5.1Z: GSM System/E–Band
- 16:48, 22 November 2021 diff hist -183 Exercise 5.1: FDMA, TDMA and CDMA
- 16:12, 22 November 2021 diff hist -473 Modulation Methods/Tasks and Classification
- 14:08, 22 November 2021 diff hist +42 Exercise 4.6Z: ISDN Supply Lines
- 14:04, 22 November 2021 diff hist -10 Exercise 4.8: Near-end and Far-end Crosstalk Disorders
- 12:54, 22 November 2021 diff hist -92 Exercise 4.8: Near-end and Far-end Crosstalk Disorders
- 12:15, 22 November 2021 diff hist -45 Exercise 4.7: Copper Twin Wire 0.5 mm
- 11:38, 22 November 2021 diff hist +4 Exercise 4.6Z: ISDN Supply Lines
- 11:37, 22 November 2021 diff hist -314 Exercise 4.6Z: ISDN Supply Lines
- 10:56, 22 November 2021 diff hist -148 Exercise 4.6: k-parameters and alpha-parameters
- 17:02, 18 November 2021 diff hist -67 Linear and Time Invariant Systems
- 17:00, 18 November 2021 diff hist +42 Exercise 4.6: k-parameters and alpha-parameters
- 16:56, 18 November 2021 diff hist -1 Linear and Time Invariant Systems/Properties of Balanced Copper Pairs
- 16:52, 18 November 2021 diff hist -1,003 Linear and Time Invariant Systems/Properties of Balanced Copper Pairs
- 12:53, 18 November 2021 diff hist -76 Linear and Time Invariant Systems/Properties of Balanced Copper Pairs
- 11:14, 18 November 2021 diff hist +71 Exercise 4.5Z: Impulse Response once again current
- 10:42, 18 November 2021 diff hist -79 Exercise 4.5: Coaxial Cable - Impulse Response current
- 10:03, 18 November 2021 diff hist +1 Linear and Time Invariant Systems/Properties of Coaxial Cables
- 16:59, 8 November 2021 diff hist -6 Exercise 4.5: Coaxial Cable - Impulse Response
- 16:58, 8 November 2021 diff hist -55 Exercise 4.5: Coaxial Cable - Impulse Response
- 16:24, 8 November 2021 diff hist -152 Exercise 4.4: Coaxial Cable - Frequency Response
- 15:17, 8 November 2021 diff hist +44 Linear and Time Invariant Systems/Properties of Coaxial Cables
- 12:50, 8 November 2021 diff hist -271 Linear and Time Invariant Systems/Properties of Coaxial Cables
- 11:06, 8 November 2021 diff hist -202 Exercise 4.3: Operational Attenuation
- 10:15, 8 November 2021 diff hist -104 Exercise 4.2: Mismatched Line
- 17:02, 5 November 2021 diff hist -244 Exercise 4.2: Mismatched Line
- 16:26, 5 November 2021 diff hist -35 Exercise 4.1Z: Transmission Behavior of Short Cables
- 15:30, 5 November 2021 diff hist -66 Exercise 4.1: Attenuation Function
- 17:06, 4 November 2021 diff hist +11 Linear and Time Invariant Systems/Some Results from Line Transmission Theory
- 17:03, 4 November 2021 diff hist -310 Linear and Time Invariant Systems/Some Results from Line Transmission Theory