WorksheetsHam Radio General Questions Till 2019 Set G2E
Total questions: 14
Worksheet time: 14mins
Name
Class
Date
1.
G2E01 Which mode is normally used when sending an RTTY signal via AFSK with an SSB transmitter?
a)
A. USB
b)
B. DSB
c)
C. CW
d)
D. LSB
2.
G2E02 How can a PACTOR modem or controller be used to determine if the channel is in use by other PACTOR stations?
a)
A. Unplug the data connector temporarily and see if the channel-busy indication is turned off
b)
B. Put the modem or controller in a mode which allows monitoring communications without a connection
c)
C. Transmit UI packets several times and wait to see if there is a response from another PACTOR station
d)
D. Send the message: "Is this frequency in use?"
3.
G2E03 What symptoms may result from other signals interfering with a PACTOR or WINMOR transmission?
a)
A. Frequent retries or timeouts
b)
B. Long pauses in message transmission
c)
C. Failure to establish a connection between stations
d)
D. All of these choices are correct
4.
G2E04 What segment of the 20-meter band is most often used for digital transmissions?
a)
A. 14.000 - 14.050 MHz
b)
B. 14.070 - 14.100 MHz
c)
C. 14.150 - 14.225 MHz
d)
D. 14.275 - 14.350 MHz
5.
G2E05 What is the standard sideband used to generate a JT65 or JT9 digital signal when using AFSK in any amateur band?
a)
A. LSB
b)
B. USB
c)
C. DSB
d)
D. SSB
6.
G2E06 What is the most common frequency shift for RTTY emissions in the amateur HF bands?
a)
A. 85 Hz
b)
B. 170 Hz
c)
C. 425 Hz
d)
D. 850 Hz
7.
G2E07 What segment of the 80-meter band is most commonly used for digital transmissions?
a)
A. 3570 – 3600 kHz
b)
B. 3500 – 3525 kHz
c)
C. 3700 – 3750 kHz
d)
D. 3775 – 3825 kHz
8.
G2E08 In what segment of the 20-meter band are most PSK31 operations commonly found?
a)
A. At the bottom of the slow-scan TV segment, near 14.230 MHz
b)
B. At the top of the SSB phone segment, near 14.325 MHz
c)
C. In the middle of the CW segment, near 14.100 MHz
d)
D. Below the RTTY segment, near 14.070 MHz
9.
G2E09 How do you join a contact between two stations using the PACTOR protocol?
a)
A. Send broadcast packets containing your call sign while in MONITOR mode
b)
B. Transmit a steady carrier until the PACTOR protocol times out and disconnects
c)
C. Joining an existing contact is not possible, PACTOR connections are limited to two stations
d)
D. Send a NAK response continuously so that the sending station has to pause
10.
G2E10 Which of the following is a way to establish contact with a digital messaging system gateway station?
a)
A. Send an email to the system control operator
b)
B. Send QRL in Morse code
c)
C. Respond when the station broadcasts its SSID
d)
D. Transmit a connect message on the station’s published frequency
11.
G2E11 What is indicated on a waterfall display by one or more vertical lines adjacent to a PSK31 signal?
a)
A. Long Path propagation
b)
B. Backscatter propagation
c)
C. Insufficient modulation
d)
D. Overmodulation
12.
G2E12 Which of the following describes a waterfall display?
a)
A. Frequency is horizontal, signal strength is vertical, time is intensity
b)
B. Frequency is vertical, signal strength is intensity, time is horizontal
c)
C. Frequency is horizontal, signal strength is intensity, time is vertical
d)
D. Frequency is vertical, signal strength is horizontal, time is intensity
13.
G2E13 Which communication system sometimes uses the Internet to transfer messages?
a)
A. Winlink
b)
B. RTTY
c)
C. ARES
d)
D. Skywarn
14.
G2E14 What could be wrong if you cannot decode an RTTY or other FSK signal even
a)
though it is apparently tuned in properly?
b)
A. The mark and space frequencies may be reversed
c)
B. You may have selected the wrong baud rate
d)
C. You may be listening on the wrong sideband
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