ASSIGNMENT 1 Textbook Assignment: “Communications,” chapter 1, pages 1-1 through 1-25. 1-1. Electrical energy used by electronic communication travels at what rate? 1. The speed of light 2. The speed of sound 3. Speed proportional transmitter power 4. Speed proportional sensitivity 1-2 l What is/are the major to to receiver disadvantage(s) of radiotelegraph? 1. Slow speed only 2. Experienced sender only 3. Experienced receiver only 4. Slow speed and the need for experienced operators at both ends 1-3. What frequency bands were originally used for radiotelegraphy? 1. ELF and EHF 2.    VLF and LF 3. MF and HF 4. VHF and UHF 1-4. What frequency bands have the prominent feature of ionospheric reflection? 1. ELF and EHF 2. VLF and LF 3. MF and HF 4. VHF and UHF 1-5. VHF and UHF bands are known as what type of transmission band? 1. Over-the-horizon 2. Fleet broadcast 3. Line-of-sight 4. Tactical 1-6. 1-7. 1-8. 1-9. 1-10. Which of the following functions is NOT performed by the IRC panel? 1. Controls VHF radio modes and functions 2. Controls UHF radio modes and functions 3. Controls HF radio modes and functions 4. Displays IFPM status of communication subsystems and components The BITE indicator on the IRC panel will illuminate when a fault is detected in the 1. IRC panel 2. UHF1 or UHF2 only 3. HF,DTS, or SLU only 4. UHF1, UHF2, HF, DTS, or SLU The LS-601/AI crew control panels are all identical and operate the same at each station. 1. True 2. False Which of the following control(s) is/are located on the LS-602/AI control panel? 1. Radio select only 2. ICS select only 3. Volume control only 4. Radio select, ICS select, and volume control What is the interrogation rate for each crew ICS panel and IRC by the change-of-status request from the SLU? 1. 25 microseconds 2. 25 milliseconds 3. 10 microseconds 4. 10 milliseconds 1