Technician Licensing Class Talk to Outer Space Valid July 1, 2014 Through June 30, 2018.

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Technician Licensing Class Talk to Outer Space Valid July 1, 2014 Through June 30, 2018

2 Amateur Radio Technician Class Element 2 Course Presentation  ELEMENT 2 SUB-ELEMENTS (Groupings) About Ham Radio Call Signs Control Mind the Rules Tech Frequencies Your First Radio Going On The Air! Repeaters Emergency! Weak Signal Propagation

3 Amateur Radio Technician Class Element 2 Course Presentation  ELEMENT 2 SUB-ELEMENTS (Groupings)  Talk to Outer Space! Your Computer Goes Ham Digital! Multi-Mode Radio Excitement Run Some Interference Protection Electrons – Go With the Flow! It’s the Law, per Mr. Ohm! Go Picture These! Antennas Feed Me with Some Good Coax! Safety First!

Talk to Outer Space  T8B4 Any amateur holding a Technician or higher class license may make contact with an amateur station on the International Space Station using 2-meter and 70 cm band amateur radio frequencies. International Space Station has a ham radio on board. Many Astronauts are licensed radio amateurs. The International Space Station downlink, FM is MHz. Use an HT to listen when it’s passing over you.

Talk to Outer Space Orbiting Satellites T8B10 The initials LEO tell you an amateur satellite is in a Low Earth Orbit.

Talk to Outer Space  T8B6 A satellite tracking program provides the following.  Maps showing the real-time position of the satellite track over the earth  The time, azimuth, and elevation of the start, maximum altitude, and end of a pass  The apparent frequency of the satellite transmission, including effects of Doppler shift

Talk to Outer Space  T8B06 The Keplerian elements are inputs to a satellite tracking program to help determine the orbits of satellites. In this diagram, the orbital plane (yellow) intersects a reference plane (gray). For earth-orbiting satellites, the reference plane is usually the Earth's equatorial plane, and for satellites in solar orbits it is the ecliptic plane. The intersection is called the line of nodes, as it connects the center of mass with the ascending and descending nodes. This plane, together with the Vernal Point ( ♈ ), establishes a reference frame.

Talk to Outer Space  T8B08 The statement that a satellite is operating in "mode U/V" means that the satellite uplink is in the 70 cm band and the downlink is in the 2 meter band. Frequency BandsFrequency RangeModes High Frequency MHz Mode H VHF MHzMode V UHF MHzMode U  T8B05 A satellite beacon is a transmission from a space station that contains information about a satellite.

Talk to Outer Space T8B9 Rotation of the satellite and its antennas causes "spin fading" when referring to satellite signals. Rotation in space makes the signals fade in and out. This rotation keeps solar panels from overheating. Tracking and communicating through amateur satellites can be done with a cross-polarized satellite antenna

Talk to Outer Space T8B7 With regards to satellite communications Doppler shift is a change in signal frequency caused by relative motion between the satellite and the earth station. Doppler Effect

Talk to Outer Space T8B02 The minimum amount of power needed to complete the contact is how much transmitter power should be used on the uplink frequency of an amateur satellite or space station. T8B11 A commonly used method of sending signals to and from a digital satellite is FM Packet

Talk to Outer Space T1A7 The FCC Part 97 definition of telemetry is a one-way transmission of measurements at a distance from the measuring instrument. Type of Information Battery condition: Full Outside temperature: Very cold Power output: Excellent Solar Panels: Bring on the sun! T1A6 The FCC Part 97 definition of telecommand is a one-way transmission to initiate, modify or terminate functions of a device at a distance. Types of Commands Turning ON an amateur radio satellite Initiating a satellite mode change Turning OFF a distant propagation radio beacon Changing data ports on a digital repeater system

Take Aways Section Elevan Take Aways Words that are bold and red appear in the correct answer.

 Any amateur holding a Technician or higher class license may make contact with an amateur station on the International Space Station using 2 meter and 70 cm band amateur radio frequencies.  The Keplerian elements are inputs to a satellite tracking program to help determine the orbits of satellites. FM Packet is a commonly used method of sending signals to and from a digital satellite. 14 Take Aways

 A satellite tracking program provides the following..  Maps showing the real-time position of the satellite track over the earth  The time, azimuth, and elevation of the start, maximum altitude, and end of a pass  The apparent frequency of the satellite transmission, including effects of Doppler shift 15 Take Aways

 The initials LEO tell you an amateur satellite is in a Low Earth Orbit  A satellite beacon is a transmission from a space station that contains information about a satellite.  When referring to satellite signals, rotation of the satellite and its antennas causes "spin fading".  With regard to satellite communications, Doppler shift is an observed change in signal frequency caused by relative motion between the satellite and the earth station. 16 Take Aways

 The statement that a satellite is operating in "mode U/V" means the satellite uplink is in the 70 cm band and the downlink is in the 2 meter band.  The minimum amount of transmitter power needed to complete the contact should be used on the uplink frequency of an amateur satellite or space station. [97.313(a)]  Telemetry is a one-way transmission of measurements at a distance from the measuring instrument. [97.3(a)(45)]  Telecommand is a one-way transmission to initiate, modify or terminate functions of a device at a distance. [97.3(a)(43)] 17 Take Aways

Valid July 1, 2014 Through June 30, 2018 Talk to Outer Space Element 2 Technician Class Question Pool

19 T8B04 Which amateur stations may make contact with an amateur station on the International Space Station using 2 meter and 70 cm band amateur radio frequencies? A.Only members of amateur radio clubs at NASA facilities B.Any amateur holding a Technician or higher class license C.Only the astronaut's family members who are hams D.You cannot talk to the ISS on amateur radio frequencies

20 T8B10 What do the initials LEO tell you about an amateur satellite? A.The satellite battery is in Low Energy Operation mode B.The satellite is performing a Lunar Ejection Orbit maneuver C.The satellite is in a Low Earth Orbit D.The satellite uses Light Emitting Optics

21 T8B03 Which of the following are provided by satellite tracking programs? A.Maps showing the real-time position of the satellite track over the earth B.The time, azimuth, and elevation of the start, maximum altitude, and end of a pass C.The apparent frequency of the satellite transmission, including effects of Doppler shift D.All of these choices are correct

22 T8B06 Which of the following are inputs to a satellite tracking program? A.The weight of the satellite B.The Keplerian elements C.The last observed time of zero Doppler Shift D.All of these answers are correct

23 T8B05 What is a satellite beacon? A.The primary transmit antenna on the satellite B.An indicator light that that shows where to point your antenna C.A reflective surface on the satellite D.A transmission from a space station that contains information about a satellite

24 T8B09 What causes spin fading when referring to satellite signals? A.Circular polarized noise interference radiated from the sun B.Rotation of the satellite and its antennas C.Doppler shift of the received signal D.Interfering signals within the satellite uplink band

25 T8B07 With regard to satellite communications, what is Doppler shift? A.A change in the satellite orbit B.A mode where the satellite receives signals on one band and transmits on another C.An observed change in signal frequency caused by relative motion between the satellite and the earth station D.A special digital communications mode for some satellites

26 T8B08 What is meant by the statement that a satellite is operating in mode U/V? A.The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band B.The satellite uplink is in the 70 cm band and the downlink is in the 2 meter band C.The satellite operates using ultraviolet frequencies D.The satellite frequencies are usually variable

27 T8B02 How much transmitter power should be used on the uplink frequency of an amateur satellite or space station? A.The maximum power of your transmitter B.The minimum amount of power needed to complete the contact C.No more than half the rating of your linear amplifier D.Never more than 1 watt

28 T8B11 What is a commonly used method of sending signals to and from a digital satellite? A.USB AFSK B.PSK31 C.FM Packet D.WSJT

29 T1A07 What is the FCC Part 97 definition of telemetry? A.An information bulletin issued by the FCC B.A one-way transmission to initiate, modify or terminate functions of a device at a distance C.A one-way transmission of measurements at a distance from the measuring instrument D.An information bulletin from a VEC

30 T1A13 What is the FCC Part 97 definition of telecommand? A.An instruction bulletin issued by the FCC B.A one-way transmission of measurements at a distance from the measuring instrument C.A one-way transmission to initiate, modify or terminate functions of a device at a distance D.An instruction from a VEC