E2D Operating methods: digital modes and procedures for VHF and UHF; APRS; EME procedures; meteor scatter procedures

- [[E2D01]] (B)
Which of the following digital modes is designed for meteor scatter communications? #card
	- [[A.]] WSPR
	- [[B.]] MSK144
	- [[C.]] Hellschreiber
	- [[D.]] APRS
- [[E2D02]] (D)
What information replaces signal-to-noise ratio when using the FT8 or FT4 modes in a VHF contest? #card
	- [[A.]] RST report
	- [[B.]] State abbreviation
	- [[C.]] Serial number
	- [[D.]] Grid square
- [[E2D03]] (D)
Which of the following digital modes is designed for EME communications? #card
	- [[A.]] MSK144
	- [[B.]] PACTOR III
	- [[C.]] WSPR
	- [[D.]] Q65
- [[E2D04]] (C)
What technology is used for real-time tracking of balloons carrying amateur radio transmitters? #card
	- [[A.]] FT8
	- [[B.]] Bandwidth compressed LORAN
	- [[C.]] APRS
	- [[D.]]  PACTOR III
- [[E2D05]] (B)
What is the characteristic of the JT65 mode? #card
	- [[A.]] Uses only a 65 Hz bandwidth
	- [[B.]] Decodes signals with a very low signal-to-noise ratio
	- [[C.]] Symbol rate is 65 baud
	- [[D.]] Permits fast-scan TV transmissions over narrow bandwidth
- [[E2D06]] (A)
Which of the following is a method for establishing EME contacts? #card
	- [[A.]] Time-synchronous transmissions alternating between stations
	- [[B.]] Storing and forwarding digital messages
	- [[C.]] Judging optimum transmission times by monitoring beacons reflected from the moon
	- [[D.]] High-speed CW identification to avoid fading
- [[E2D07]] (C)
What digital protocol is used by APRS? #card
	- [[A.]] PACTOR
	- [[B.]] QAM
	- [[C.]] AX.25
	- [[D.]] AMTOR
- [[E2D08]] (C)
What type of packet frame is used to transmit APRS beacon data? #card
	- [[A.]] Acknowledgement
	- [[B.]] Burst
	- [[C.]] Unnumbered Information
	- [[D.]] Connect
- [[E2D09]] (A)
What type of modulation is used by JT65? #card
	- [[A.]] Multitone AFSK
	- [[B.]] PSK
	- [[C.]] RTTY
	- [[D.]] QAM
- [[E2D10]] (C)
What does the packet path WIDE3-1 designate? #card
	- [[A.]] Three stations are allowed on frequency, one transmitting at a time
	- [[B.]] Three subcarriers are permitted, subcarrier one is being used
	- [[C.]] Three digipeater hops are requested with one remaining
	- [[D.]] Three internet gateway stations may receive one transmission
- [[E2D11]] (D)
How do APRS stations relay data? #card
	- [[A.]] By packet ACK/NAK relay
	- [[B.]] By C4FM repeaters
	- [[C.]] By DMR repeaters 
	- [[D.]] By packet digipeaters