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ARSGDAT.3AH
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1992-10-04
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5KB
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225 lines
;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\:
; :
; AMATEUR RADIO STUDY GUIDE v1.00 :
; :
; Copyright (c) 1992 David Drzyzga - All Rights Reserved :
; :
; Based on a program coded in BASIC by Russ Revels :
; :
;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\:
;
; You can include comments an the file anywhere you want
; just like these comments. You cannot put a comment in
; the middle of a line though.
;
; When modifying this file, there are several things you
; must be aware of:
;
; -> Any line of text in this file cannot exceed 65 characters!
; this is the 65th character^
;
; No harm will be done, but nothing over 65 characters will
; be read by the program.
;
; -> Do not make questions more than 20 lines long, or you
; will receive an 'out of memory' error when you execute
; the program.
;
; -> You can add or delete questions as you please, just be
; sure to follow the format of the existing questions.
;
;
;
(3AH-1.1)
What is the meaning of the term modulation?
A. The process of varying some characteristic of a carrier wave
for the purpose of conveying information
*
(3AH-2-1.1)
If the modulator circuit of your FM transmitter fails, what
emission type would likely result?
A. Unmodulated carrier
*
(3AH-2-1.2)
What emission does not have sidebands resulting from modulation?
B. Test
*
(3AH-2-2.1)
What is the FCC emission designator for a Morse code telegraphy
signal produced by switching the transmitter output on and off?
C. CW
*
(3AH-2-2.2)
What is CW?
A. Morse code telegraphy using amplitude modulation
*
(3AH-2-3.1)
What is RTTY?
B. Frequency-shift-keyed telegraphy
*
(3AH-2-3.2)
What is the emission designation for telegraphy by frequency
shift keying without the use of a modulating tone?
A. RTTY
*
(3AH-2-4.1)
What emission type results when an on/off keyed audio tone is
applied to the microphone input of an FM transmitter?
B. MCW
*
(3AH-2-4.2)
What is tone-modulated international Morse code telegraphy?
D. Telegraphy produced by an on/off keyed audio tone fed into an
CW transmitter
*
(3AH-2-5.1)
What is the emission designated as "MCW"?
A. Frequency-modulated telegraphy using audio tones
*
(3AH-2-5.2)
In an ITU emission designator like A1A, what does the first
symbol describe?
D. The type of modulation of the main carrier
*
(3AH-2-5.3)
What emission type results when an on-off keyed audio oscillator
is connected to the microphone jack of an FM phone transmitter?
C. MCW
*
(3AH-2-6.1)
In an ITU emission designator like F3B, what does the second
symbol describe?
A. A data transmission produced by modulating an FM transmitter
with audio tones
*
(3AH-2-6.2)
How would you transmit packet using an FM 2-meter transceiver?
B. Modulate your FM transmitter with audio tones from a terminal
node controller
*
(3AH-2-7.1)
What type of emission results when speaking into the microphone
of a 2-meter FM handheld transceiver?
D. Frequency modulated phone
*
(3AH-2-7.2)
What emission type do most 2-meter FM transmitters transmit?
B. Frequency modulated phone
*
(3AH-2-8.1)
What is the most important consideration when installing a 10
meter dipole inside an attic?
C. It will covered by an insulation to prevent fire and high
enough to prevent being being accidentally touched during
transmission
*
(3AH-2-8.2)
What type of transmitter will produce a frequency modulated
carrier wave?
D. A Phase-modulated telephony
*
(3AH-3.1)
What is the term used to describe a constant-amplitude
radio-frequency signal?
A. An RF carrier
*
(3AH-3.2)
What is another name for an unmodulated radio-frequency signal?
B. An RF carrier
*
(3AH-4.1)
What characteristic makes FM telephony especially well-suited
for local VHF/UHF radio communications?
C. Good audio fidelity and high signal-to-noise ratio above a
certain signal amplitude threshold
*
(3AH-5.1)
What emission is produced by a transmitter using a reactance
modulator?
D. Phase Modulated phone
*
(3AH-5.2)
What other emission does phase modulation most resemble?
C. Frequency modulation
*
(3AH-6.1)
Many communications receivers have several IF filters that can
be selected by the operator. Why do these filters have
different bandwidths?
D. Because some emission types occupy a wider frequency range
than others
*
(3AH-6-1.2)
List the following signals in order of increasing bandwidth
(narrowest signal first): CW, FM voice, RTTY, SSB voice.
C. CW, RTTY, SSB voice, FM voice
*
(3AH-7-1.1)
To what is the deviation of an FM transmission proportional?
D. Only the amplitude of the audio modulating signal
*
(3AH-7-2.1)
What is the result of overdeviation in an FM transmitter?
B. Out-of-channel emissions (splatter)
*
(3AH-7-2.2)
What is splatter?
C. Interference to adjacent signals caused by overmodulation of
a transmitter
*