T8_Signals_&_Emissions_part_2

Which of the following methods is used to locate sources of noise interference or jamming?

• Echolocation
• Doppler radar
• Radio direction finding
• Phase locking

Which of these items would be useful for a hidden transmitter hunt?

• Calibrated SWR meter
• A directional antenna
• A calibrated noise bridge
• All these choices are correct

What operating activity involves contacting as many stations as possible during a specified period?

• Simulated emergency exercises
• Net operations
• Public service events
• Contesting

Which of the following is good procedure when contacting another station in a contest?

• Sign only the last two letters of your call if there are many other stations calling
• Contact the station twice to be sure that you are in his log
• Send only the minimum information needed for proper identification and the contest exchange
• All these choices are correct

What is a grid locator?

• A letter-number designator assigned to a geographic location
• A letter-number designator assigned to an azimuth and elevation
• An instrument for neutralizing a final amplifier
• An instrument for radio direction finding

How is over the air access to IRLP nodes accomplished?

• By obtaining a password that is sent via voice to the node
• By using DTMF signals
• By entering the proper internet password
• By using CTCSS tone codes

What is Voice Over Internet Protocol (VoIP)?

• A set of rules specifying how to identify your station when linked over the internet to another station
• A technique employed to “spot” DX stations via the internet
• A technique for measuring the modulation quality of a transmitter using remote sites monitored via the internet
• A method of delivering voice communications over the internet using digital techniques

What is the Internet Radio Linking Project (IRLP)?

• A technique to connect amateur radio systems, such as repeaters, via the internet using Voice Over Internet Protocol (VoIP)
• A system for providing access to websites via amateur radio
• A system for informing amateurs in real time of the frequency of active DX stations
• A technique for measuring signal strength of an amateur transmitter via the internet

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• IRLP
• D-STAR
• DMR
• EchoLink

What is required before using the EchoLink system?

• Complete the required EchoLink training
• Purchase a license to use the EchoLink software
• Register your call sign and provide proof of license
• All these choices are correct