Regional Gliding School Wavelength Wavelength is the linear measurement of a wave.

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Presentation transcript:

Regional Gliding School Wavelength Wavelength is the linear measurement of a wave.

Regional Gliding School Crest is the highest part of the wave. Trough is the lowest part of the wave. TROUGH CREST

Regional Gliding School Cycle is one complete vibration from trough to trough or crest to crest. Cycle Cycle

Regional Gliding School Frequency is number of cycles per second. Hertz is a measurement of frequency. Usually measured in kilohertz or megahertz. Frequency

Regional Gliding School Low and Medium Frequencies Frequencies between 200KHz and 535KHz are known as low or medium frequencies. Commercial broadcast radio stations and homing devices all transmit on low or medium frequencies.

Regional Gliding School High Frequencies Frequencies between 2,500KHz and 30,000KHz are known as high frequencies. They are excellent for air/ground communication facilities in the northern remote areas of Canada.

Regional Gliding School Very High Frequencies Frequencies between 30MHz and 300MHz are known as very high frequencies. Used for aviation, for commercial and private aircraft.

Regional Gliding School Ultra High Frequency Frequencies between 300MHz and 3000MHz are known as ultra high frequencies. Used for upper level aircraft and special government use.

Regional Gliding School NOTE: You must use the buttons in the Confirmation Stage

Regional Gliding School A B C D Crest Trough Cycle Wave length Let's try a few review questions on Radio: Question #1 - What is the lowest part of a radio wave? Radio Radio Waves and Signals

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

That answer is correct. Let's move on...

Regional Gliding School A B C D Commercial broadcasts Radio stations Homing devices All the above Let's try a few review questions on Radio: Question #2 - What are low and medium waves used for? Radio Radio Waves and Signals

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

That answer is correct. Let's move on...

Regional Gliding School Ground Waves Ground waves travel along the surface of the earth and are dulled by obstacles.

Regional Gliding School Sky Waves Sky waves travel upward into the air and are reflected back to the surface from the ionosphere.

Regional Gliding School Skip Zone Skip zone is an area located between the ground waves and the sky waves. Transmissions are very erratic or unheard. Skip Zone

Regional Gliding School Line of Sight VHF radio waves travel straight through the air. Therefore, an aircraft must be able to see the station in order to receive their transmission. This is known as “line of sight”.

Regional Gliding School Emergencies n The emergency frequency is MHz n Distress –The first distress call should be placed on the current frequency, if there no response then transmit on the emergency frequency. –Distress calls can be used when the flight is threatened by grave or imminent danger and requires immediate assistance. –The call format is the word MAYDAY repeated three times. A pilot should include present position, nature of emergency, and intentions.

Regional Gliding School n Urgency –The urgency call should be placed to a specific station. –Urgency calls can be used with concerns of the safety of the aircraft, any person on board or within sight. –The call format is the word PAN repeated three times. A pilot should include present position, nature of urgency, and intentions. Emergencies

Regional Gliding School n Safety –Message concerning the safety of navigation or important meteorological warning to aircraft in flight. –The call format is the word SECURITY repeated three times. Emergencies

Regional Gliding School Priority of Communication The following are the priority of calls by Flight Service Stations (FSS):  Emergency Communication  Flight Safety Communication  Scheduled Broadcasts  Unscheduled Broadcasts  Other air/ground Communications

Regional Gliding School Communication Check The readability scale employed is as follows: SYMBOLSMEANING SCALE 1UnreadableBad 1UnreadableBad 2Readable now and thenPoor 2Readable now and thenPoor 3Readable with difficultiesFair 3Readable with difficultiesFair 4ReadableGood 4ReadableGood 5Perfectly ReadableExcellent 5Perfectly ReadableExcellent

Regional Gliding School NOTE: You must use the buttons in the Confirmation Stage

Regional Gliding School A B C D Line of sight Skip zone Ground wave Sky wave Let's try a few review questions on Radio: Question #3 - Name a wave that travels upward into the air. Radio Radio Waves and Signals

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

That answer is correct. Let's move on...

Regional Gliding School A B C D MAYDAY PAN SECURITY HELP Let's try a few review questions on Radio: Question #4 - What signal word for an urgency call? Radio Radio Waves and Signals

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

That answer is correct. Let's move on...

Regional Gliding School Congratulations!! You have now completed the Radio Waves and Signals lesson of the Radio Module. Of course, this lesson is always available to you for future reference if required. You are now ready to move along to the next Radio lesson you have not completed or to any other module you wish. You can advance to the Self Test Module if you feel ready to challenge the final exam. Good Luck! Radio Radio Waves and Signals