Req 5 a Block Diagrams Antenna Schematics Antenna

Req. 5. a. : Block Diagrams & Antenna Schematics Antenna Feedline Microphone Feed line Transceiver Amplifier Microphone SLIDE 1 10 11 12 9 8 7 6 5 4 3

Req. 5. a. : Schematic Diagrams Antenna Feedline Microphone Transceiver Amplifier SLIDE 2 12 5 4 3

Req. 5. b. : Radio Station Diagram Finish Block Diagram SLIDE 3 1

Verbal (audio) message being sent How AM Information is Req. 5. c. : How Information is Transmitted -AM & FM (Amplitude Modulation) Transmitted FM (Frequency Modulation) SLIDE 4 14 3 2 5

Req. 5. c. : How Information is Transmitted - SSB AM (Amplitude Modulation) SSB (Single Sideband) SLIDE 5 12 3

Req. 5. c. : CW DIT CW? DIT DAH V “CW” CONTINUOUS WAVE SLIDE 6 12 8 7 6 5 4 3

Req. 5. c. : CW SLIDE 7 12

Req. 5. c. : CW B S A SLIDE 8 12 3

Req. 5. c. : Digital Signals Digital! SLIDE 9 12 3

Req. 5. c. : Digital Signals 58 s 100 s 111 0 0 = 116 SLIDE 10 12 8 7 6 5 4 3

Req. 5. c. : Digital Signals Let’s Transmit A B Digital! MESSAGE DIRECTION SLIDE 11 12 5 4 3

Req. 5. d. : NOAA Weather Radio (NWR) SLIDE 12 12

Req. 5. e. : Cell Phones How Cell Phone Systems Work Tr Co m an s ce i pu Ba te r tt er y e on r ph e ro ak ic e M Sp R g/ a Tr ng ivi in itt e ec en t An ve r na m ns SLIDE 13 12 9 8 7 6 5 4 3

Req. 5. e. : Cell Phones SLIDE 14 15 9 8 7 6 4 3 2

Req. 5. e. : Cell Phone System Limitations in Disasters • 90+% load during normal times… What will happen with a bigger-thannormal load? Limitations in Disasters • Still requires land- line telephone system • Requires functioning electrical power system SLIDE 15 12 4 3