75 lines
4.0 KiB
Markdown
75 lines
4.0 KiB
Markdown
E2C Contest and DX operating; remote operation techniques; log data format; contact confirmation; RF network systems
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- [[E2C01]] (D)
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What indicator is required to be used by US-licensed operators when operating a station via remote control and the remote transmitter is located in the US? #card
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- [[A.]] / followed by the USPS two-letter abbreviation for the state in which the remote station is located
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- [[B.]] /R# where # is the district of the remote station
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- [[C.]] / followed by the ARRL Section of the remote station
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- [[D.]] No additional indicator is required
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- [[E2C02]] (C)
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Which of the following file formats is used for exchanging amateur radio log data? #card
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- [[A.]] NEC
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- [[B.]] ARLD
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- [[C.]] ADIF
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- [[D.]] OCF
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- [[E2C03]] (A)
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From which of the following bands is amateur radio contesting generally excluded? #card
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- [[A.]] 30 meters
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- [[B.]] 6 meters
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- [[C.]] 70 centimeters
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- [[D.]] 33 centimeters
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- [[E2C04]] (B)
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Which of the following frequencies can be used for amateur radio mesh networks? #card
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- [[A.]] HF frequencies where digital communications are permitted
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- [[B.]] Frequencies shared with various unlicensed wireless data services
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- [[C.]] Cable TV channels 41-43
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- [[D.]] The 60-meter band channel centered on 5373 kHz
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- [[E2C05]] (B)
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What is the function of a DX QSL Manager? #card
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- [[A.]] Allocate frequencies for DXpeditions
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- [[B.]] Handle the receiving and sending of confirmations for a DX station
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- [[C.]] Run a net to allow many stations to contact a rare DX station
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- [[D.]] Communicate to a DXpedition about propagation, band openings, pileup conditions, etc.
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- [[E2C06]] (C)
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During a VHF/UHF contest, in which band segment would you expect to find the highest level of SSB or CW activity? #card
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- [[A.]] At the top of each band, usually in a segment reserved for contests
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- [[B.]] In the middle of each band, usually on the national calling frequency
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- [[C.]] In the weak signal segment of the band, with most of the activity near the calling frequency
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- [[D.]] In the middle of the band, usually 25 kHz above the national calling frequency
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- [[E2C07]] (A)
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What is the Cabrillo format? #card
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- [[A.]] A standard for submission of electronic contest logs
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- [[B.]] A method of exchanging information during a contest QSO
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- [[C.]] The most common set of contest rules
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- [[D.]] A digital protocol specifically designed for rapid contest exchanges
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- [[E2C08]] (D)
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Which of the following contacts may be confirmed through the Logbook of The World (LoTW)? #card
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- [[A.]] Special event contacts between stations in the US
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- [[B.]] Contacts between a US station and a non-US station
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- [[C.]] Contacts for Worked All States credit
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- [[D.]] All these choices are correct
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- [[E2C09]] (C)
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What type of equipment is commonly used to implement an amateur radio mesh network? #card
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- [[A.]] A 2-meter VHF transceiver with a 1,200-baud modem
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- [[B.]] A computer running EchoLink to provide interface from the radio to the internet
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- [[C.]] A wireless router running custom firmware
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- [[D.]] A 440 MHz transceiver with a 9,600-baud modem
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- [[E2C10]] (D)
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Why do DX stations often transmit and receive on different frequencies? #card
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- [[A.]] Because the DX station may be transmitting on a frequency that is prohibited to some responding stations
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- [[B.]] To separate the calling stations from the DX station
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- [[C.]] To improve operating efficiency by reducing interference
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- [[D.]] All these choices are correct
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- [[E2C11]] (A)
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How should you generally identify your station when attempting to contact a DX station during a contest or in a pileup? #card
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- [[A.]] Send your full call sign once or twice
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- [[B.]] Send only the last two letters of your call sign until you make contact
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- [[C.]] Send your full call sign and grid square
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- [[D.]] Send the call sign of the DX station three times, the words “this is,” then your call sign three times
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- [[E2C12]] (C)
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What indicates the delay between a control operator action and the corresponding change in the transmitted signal? #card
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- [[A.]] Jitter
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- [[B.]] Hang time
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- [[C.]] Latency
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- [[D.]] Anti-VOX
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