home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Precision Software Appli…tions Silver Collection 1
/
Precision Software Applications Silver Collection Volume One (PSM) (1993).iso
/
tutor
/
arsg10.exe
/
ARSGDAT.4BD
< prev
next >
Wrap
Text File
|
1992-10-04
|
5KB
|
220 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.
;
;
;
(4BD-1A.1)
How does a spectrum analyzer differ from a conventional
time-domain oscilloscope?
C. The oscilloscope is used to display electrical signals in the
time domain while the spectrum analyzer is used to display
electrical signals in the frequency domain
*
(4BD-1A.2)
What does the horizontal axis of a spectrum analyzer display?
D. Frequency
*
(4BD-1A.3)
What does the vertical axis of a spectrum analyzer display?
A. Amplitude
*
(4BD-1B.1)
What test instrument can be used to display spurious signals in
the output of a radio transmitter?
A. A spectrum analyzer
*
(4BD-1B.2)
What test instrument is used to display intermodulation
distortion products from an SSB transmitter?
B. A spectrum analyzer
*
(4BD-2A.1)
What advantage does a logic probe have over a voltmeter for
monitoring logic states in a circuit?
D. A logic probe is smaller and shows a simplified readout
*
(4BD-2A.2)
What piece of test equipment can be used to directly indicate
high and low logic states?
C. A logic probe
*
(4BD-2A.3)
What is a logic probe used to indicate?
D. High and low logic states in a digital-logic circuit
*
(4BD-2B.1)
What piece of test equipment besides an oscilloscope can be used
to indicate pulse conditions in a digital-logic circuit?
A. A logic probe
*
(4BD-3A.1)
What is one of the most significant problems you might encounter
when you try to receive signals with a mobile station?
A. Ignition noise
*
(4BD-3A.2)
What is the proper procedure for suppressing electrical noise in
a mobile station?
A. Apply shielding and filtering where necessary
*
(4BD-3A.3)
How can ferrite beads be used to suppress ignition noise?
C. Install them in the primary and secondary ignition leads
*
(4BD-3A.4)
How can ensuring good electrical contact between connecting
metal surfaces in a vehicle reduce spark plug noise?
D. It encourages lower frequency electrical resonances in the
vehicle
*
(4BD-3B.1)
How can alternator whine be minimized?
B. By connecting the radio's power leads to the battery by the
shortest possible path
*
(4BD-3B.2)
How can conducted and radiated noise caused by an automobile
alternator be suppressed?
D. By connecting the radio power leads directly to the battery
and by installing coaxial capacitors in the alternator leads
*
(4BD-3C.1)
What is a major cause of atmospheric static?
B. Thunderstorms
*
(4BD-3D.1)
How can you determine if a line-noise interference problem is
being generated within your home?
C. Turn off the main circuit breaker and listen on a
battery-operated radio
*
(4BD-4.1)
What is the main drawback of a wire-loop antenna for direction
finding?
A. It has a bidirectional pattern broadside to the loop
*
(4BD-4.2)
What directional pattern is desirable for a direction- finding
antenna?
B. Good front-to-back and front-to-side ratios
*
(4BD-4.3)
What is the triangulation method of direction finding?
C. Beam headings from several receiving locations are used to
plot the signal source on a map
*
(4BD-4.4)
Why is an RF attenuator desirable in a receiver used for
direction finding?
D. It prevents receiver overload from extremely strong signals
*
(4BD-4.5)
What is a sense antenna?
A. A vertical antenna added to a loop antenna to produce a
cardioid reception pattern
*
(4BD-4.6)
What type of antenna is most useful for sky-wave reception in
radio direction finding?
D. An Adcock antenna
*
(4BD-4.7)
What is a loop antenna?
C. A wire loop used in radio direction finding
*
(4BD-4.8)
How can the output voltage of a loop antenna be increased?
D. By increasing either the number of wire turns in the loop, or
the area of the loop structure
*
(4BD-4.9)
Why is an antenna system with a cardioid pattern desirable for a
direction-finding system?
B. The deep null of the cardioid pattern can pinpoint the
direction of the desired station
*
(4BD-4.10)
What type of terrain can cause errors in direction finding?
C. Varied terrain
*