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