T8A RF carrier, definition and typical
bandwidths; harmonics and
unwanted
signals; chirp; superimposed hum; equipment and adjustments
to
help reduce interference to others
T8A01
@T8B02
What is
an RF carrier?
A. The part of a transmitter that carries the
signal to the
transmitter
antenna
B. The part of a receiver that carries the
signal from the antenna to
the
detector
C. A radio frequency signal that is modulated
to produce a
radiotelephone
signal
D. A modulation that changes a radio frequency
signal to produce a
radiotelephone
signal
T8A02
@T8B07
Which
list of emission types is in order from the narrowest bandwidth
to the
widest bandwidth?
A. RTTY, CW, SSB voice, FM voice
B. CW, FM voice, RTTY, SSB voice
C. CW, RTTY, SSB voice, FM voice
D. CW, SSB voice, RTTY, FM voice
T8A03
@T8B08
What is
the usual bandwidth of a single-sideband amateur signal?
A. 1 kHz
B. 2 kHz
C. Between 3 and 6 kHz
D. Between 2 and 3 kHz
T8A04
@T8B09
What is
the usual bandwidth of a frequency-modulated amateur signal?
A. Less than 5 kHz
B. Between 5 and 10 kHz
C. Between 10 and 20 kHz
D. Greater than 20 kHz
T8A05
@T8A02
What is
the name for emissions produced by switching a transmitter's
output
on and off?
A. Phone
B. Test
C. CW
D. RTTY
T8A06
@T8A03
What
term describes the process of combining an information signal
with a
radio signal?
A. Superposition
B. Modulation
C. Demodulation
D. Phase-inversion
T8A07
@T8B11
What is
the result of over deviation in an FM transmitter?
A. Increased transmitter power
B. Out-of-channel emissions
C. Increased transmitter range
D. Poor carrier suppression
T8A08
@T8B12
What
causes splatter interference?
A. Keying a transmitter too fast
B. Signals from a transmitter's output circuit
are being sent back to
its
input circuit
C. Overmodulation of a transmitter
D. The transmitting antenna is the wrong length
T8A09
@N8B01
How
does the frequency of a harmonic compare to the desired
transmitting
frequency?
A. It is slightly more than the desired
frequency
B. It is slightly less than the desired
frequency
C. It is exactly two, or three, or more times
the desired frequency
D. It is much less than the desired frequency
T8A10
@N8B15
What
should you check if you change your transceiver's microphone from
a
mobile type to a base station type?
A. Check the CTCSS levels on the oscilloscope
B. Make an on-the-air radio check to ensure the
quality of your
signal
C. Check the amount of current the transceiver
is now using
D. Check to make sure the frequency readout is
now correct
T8A11
@N8B16
Why is
good station grounding needed when connecting your computer to
your
transceiver to receive high-frequency data signals?
A. Good grounding raises the receiver's noise
floor
B. Good grounding protects the computer from nearby
lightning strikes
C. Good grounding will minimize stray noise on
the receiver
D. FCC rules require all equipment to be
grounded