79 lines
3.2 KiB
Markdown
79 lines
3.2 KiB
Markdown
T8C – Operating activities: radio direction finding, contests, linking over the internet, exchanging grid locators
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- [[T8C01]] (C)
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Which of the following methods is used to locate sources of noise interference or jamming? #card
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- A. Echolocation
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- B. Doppler radar
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- C. Radio direction finding
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- D. Phase locking
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- [[T8C02]] (B)
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Which of these items would be useful for a hidden transmitter hunt? #card
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- A. Calibrated SWR meter
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- B. A directional antenna
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- C. A calibrated noise bridge
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- D. All these choices are correct
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- [[T8C03]] (D)
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What operating activity involves contacting as many stations as possible during a specified period? #card
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- A. Simulated emergency exercises
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- B. Net operations
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- C. Public service events
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- D. Contesting
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- [[T8C04]] (C)
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Which of the following is good procedure when contacting another station in a contest? #card
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- A. Sign only the last two letters of your call if there are many other stations calling
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- B. Contact the station twice to be sure that you are in his log
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- C. Send only the minimum information needed for proper identification and the contest exchange
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- D. All these choices are correct
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- [[T8C05]] (A)
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What is a grid locator? #card
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- A. A letter-number designator assigned to a geographic location
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- B. A letter-number designator assigned to an azimuth and elevation
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- C. An instrument for neutralizing a final amplifier
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- D. An instrument for radio direction finding
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- [[T8C06]] (B)
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How is over the air access to IRLP nodes accomplished? #card
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- A. By obtaining a password that is sent via voice to the node
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- B. By using DTMF signals
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- C. By entering the proper internet password
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- D. By using CTCSS tone codes
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- [[T8C07]] (D)
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What is Voice Over Internet Protocol (VoIP)? #card
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- A. A set of rules specifying how to identify your station when linked over the internet to another station
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- B. A technique employed to “spot” DX stations via the internet
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- C. A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
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- D. A method of delivering voice communications over the internet using digital techniques
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- [[T8C08]] (A)
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What is the Internet Radio Linking Project (IRLP)? #card
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- A. A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)
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- B. A system for providing access to websites via amateur radio
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- C. A system for informing amateurs in real time of the frequency of active DX stations
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- D. A technique for measuring signal strength of an amateur transmitter via the internet
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- [[T8C09]] (D)
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Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission? #card
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- A. IRLP
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- B. D-STAR
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- C. DMR
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- D. EchoLink
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- [[T8C10]] (C)
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What is required before using the EchoLink system? #card
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- A. Complete the required EchoLink training
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- B. Purchase a license to use the EchoLink software
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- C. Register your call sign and provide proof of license
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- D. All these choices are correct
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- [[T8C11]] (A)
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What is an amateur radio station that connects other amateur stations to the internet? #card
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- A. A gateway
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- B. A repeater
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- C. A digipeater
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- D. A beacon
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