Understanding the Frequency Spectrum

1. Understanding the Frequency Spectrum Finding Your Place

2. AM radio - 535 kilohertz to 1.7 megahertz Common Frequency Bands

3. AM radio - 535 kilohertz to 1.7 megahertz Short wave radio - 5.9 mhz to 26.1 mhz Common Frequency Bands

4. AM radio - 535 kilohertz to 1.7 megahertz Short wave radio - 5.9 mhz to 26.1 mhz C.B. radio - 26.96 - 27.41 mhz Common Frequency Bands

5. AM radio - 535 kilohertz to 1.7 megahertz Short wave radio - 5.9 mhz to 26.1 mhz C.B. radio - 26.96 - 27.41 mhz Television stations - 54 to 88 mhz - chls 2-6 Common Frequency Bands

6. AM radio - 535 kilohertz to 1.7 megahertz Short wave radio - 5.9 mhz to 26.1 mhz C.B. radio - 26.96 - 27.41 mhz Television stations - 54 to 88 mhz - chls 2-6 FM radio - 88 mhz to 108 mhz Common Frequency Bands

7. AM radio - 535 kilohertz to 1.7 megahertz Short wave radio - 5.9 mhz to 26.1 mhz C.B. radio - 26.96 - 27.41 mhz Television stations - 54 to 88 mhz - chls 2-6 FM radio - 88 mhz to 108 mhz Television stations - 174 to 220 mhz (7-13). Common Frequency Bands

8. Every Wireless device has its own Band Garage door openers - 40 mhz Baby monitors: 49 mhz Radio controlled airplanes: Around 72 mhz Cell phones: 824 to 849 megahertz Cordless phones: 900 mhz, Air traffic control: 960 mhz to 1.2 Ghz GPS System: 1.2 – 1.5 Ghz. Cordless Phones: 2.4 Ghz.

9. Interference

10. Generally first come first served How are frequencies decided?

11. Generally first come first served AM Radio was first on the block How are frequencies decided?

12. Generally first come first served AM Radio was first on the block Arrived in 1906 - limited frequencies (low) How are frequencies decided?

13. Generally first come first served AM Radio was first on the block Arrived in 1906 - limited frequencies (low) FM Radio came along before TV..... How are frequencies decided?

14. Generally first come first served AM Radio was first on the block Arrived in 1906 - limited frequencies (low) FM Radio came along before TV..... BUT ...TV became popular faster. How are frequencies decided?

15. Short Wave radio can circle the globe. Signal Reach

16. Short Wave radio can circle the globe. Some AM stations can travel great distances Why? Signal Reach

17. Short Wave radio can circle the globe. Some AM stations can travel great distances Why? Part of Atmosphere is called IONOSPHERE. Signal Reach

19. Short Wave radio can circle the globe. Some AM stations can travel great distances Part of Atmosphere is called IONOSPHERE Sun causes atoms to lose electrons and become ions Signal Reach

20. Short Wave radio can circle the globe. Some AM stations can travel great distances Part of Atmosphere is called IONOSPHERE Sun causes atoms to lose electrons and become ions The ionosphere can reflect certain radio waves. Signal Reach

22. Short Wave radio can circle the globe. Some AM stations can travel great distances Part of Atmosphere is called IONOSPHERE Sun causes atoms to lose electrons and become ions The ionosphere can reflect certain radio waves. When the sun disappears….the layer becomes transparent. Signal Reach

23. Choose 3 Windsor Radio Stations. Identify:- Frequency (ie: 95.9 FM, 1290AM…)- Ownership (ie: CORUS, CHUM…)- Format (Rock, Country, Alternative…) For each Frequency, locate 3 other Radio stations that share the same Frequency.- Research the following:Frequency, Location, Owners, Format Assignment

24. Frequency – FM 93.9 Ownership – Bell Media Format – Alternative____________________________________ Other Stations:103.9CISN 103.9 K-RockEdmonton NewFoundlandCORUS Radio ASTRAL MediaCountry Classic Rock Example- The River -