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Precision Software Appli…tions Silver Collection 1
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Precision Software Applications Silver Collection Volume One (PSM) (1993).iso
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tutor
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arsg10.exe
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ARSGDAT.2AD
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Text File
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1992-10-04
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9KB
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364 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.
;
;
;
(2AD-1.1)
How can you prevent the use of your amateur station by
unauthorized persons?
B. Install a key-operated "ON/OFF" switch in the main power line
*
(2AD-1.2)
What is the purpose of a key-operated "ON/OFF" switch in the
main power line?
A. To prevent the use of your station by unauthorized persons
*
(2AD-2.1)
Why should all antenna and rotator cables be grounded when an
amateur station is not in use?
D. To protect the station and building from damage due to a
nearby lightning strike
*
(2AD-2.2)
How can an antenna system be protected from damage caused by a
nearby lightning strike?
C. Ground all antennas when they are not in use
*
(2AD-2.3)
How can amateur station equipment be protected from damage
caused by voltage induced in the power lines by a nearby
lightning strike?
D. Disconnect all equipment after use, either by unplugging or
by using a main disconnect switch
*
(2AD-2.4)
For proper protection from lightning strikes, what equipment
should be grounded in an amateur station?
B. All station equipment
*
(2AD-3.1)
What is a convenient indoor grounding point for an amateur
station?
A. A metallic cold water pipe
*
(2AD-3.2)
To protect against electrical shock hazards, what should you
connect the chassis of each piece of your equipment to?
C. A good ground connection
*
(2AD-3.3)
What type of material should a driven ground rod be made of?
B. Copper or copper-clad steel
*
(2AD-3.4)
What is the shortest ground rod you should consider installing
for your amateur station RF ground?
C. 8 foot
*
(2AD-4.1)
What precautions should you take when working with 1270-MHz
waveguide?
B. Never look into the open end of a waveguide when RF is
applied
*
(2AD-4.2)
What precautions should you take when you mount a UHF antenna in
a permanent location?
A. Make sure that no one can be near the antenna when you are
transmitting
*
(2AD-4.3)
What precautions should you take before removing the shielding
on a UHF power amplifier?
C. Make sure the amplifier cannot be accidentally energized
*
(2AD-4.4)
Why should you use only good-quality, well-constructed coaxial
cable and connectors for a UHF antenna system?
A. To minimize RF leakage
*
(2AD-4.5)
Why should you be careful to position the antenna of your
220-MHz hand- held transceiver away from your head when you are
transmitting?
B. To minimize RF exposure
*
(2AD-4.6)
Which of the following types of radiation produce health risks
most like the risks produced by radio frequency radiation?
B. Microwave oven radiation and radiation from an electric space
heater
*
(2AD-5.1)
Why is there a switch that turns off the power to a high-voltage
power supply if the cabinet is opened?
D. To reduce the danger of electrical shock
*
(2AD-5.2)
What purpose does a safety interlock on an amateur transmitter
serve?
A. It reduces the danger that the operator will come in contact
with dangerous high voltages when the cabinet is opened while
the power is on
*
(2AD-6.1)
What type of safety equipment should you wear when you are
working at the top of an antenna tower?
D. A carefully inspected safety belt
*
(2AD-6.2)
Why should you wear a safety belt when you are working at the
top of an antenna tower?
D. To prevent an accidental fall
*
(2AD-6.3)
For safety purposes, how high should you locate all portions of
your horizontal wire antenna?
A. High enough so that a person cannot touch them from the
ground
*
(2AD-6.4)
What type of safety equipment should you wear when you are on
the ground assisting someone who is working on an antenna tower?
D. A hard hat
*
(2AD-6.5)
Why should you wear a hard hat when you are on the ground
assisting someone who is working on an antenna tower?
A. To avoid injury from tools dropped from the tower
*
(2AD-7-1.1)
What accessory is used to measure standing wave ratio?
C. An SWR meter
*
(2AD-7-1.2)
What instrument is used to indicate the relative impedance match
between a transmitter and antenna?
D. An SWR meter
*
(2AD-7-2.1)
What does an SWR-meter reading of 1:1 indicate?
D. An SWR meter never indicates 1:1 unless it is defective
*
(2AD-7-2.2)
What does an SWR meter reading of less than 1.5:1 indicate?
C. An acceptable impedance match
*
(2AD-7-2.3)
What does an SWR meter reading of 4:1 indicate?
D. An impedance mismatch, which is not acceptable; it indicates
problems with the antenna system
*
(2AD-7-2.4)
What does an SWR-meter reading of 5:1 indicate?
C. An unacceptable mismatch is indicated
*
(2AD-7-3.1)
What kind of SWR meter reading may indicate poor electrical
contact between parts of an antenna system?
A. An erratic reading
*
(2AD-7-3.2)
What does an unusually high SWR meter reading indicate?
A. That the antenna is not the correct length, or that there is
an open or shorted connection somewhere in the feed line
*
(2AD-7-3.3)
The SWR meter reading at the low-frequency end of an amateur
band is 2.5:1, and the SWR meter reading at the high-frequency
end of the same band is 5:1. What does this indicate about your
antenna?
B. The antenna is too long for operation on this band
*
(2AD-7-3.4)
The SWR meter reading at the low-frequency end of an amateur
band is 5:1, and the SWR meter reading at the high-frequency end
of the same band is 2.5:1. What does this indicate about your
antenna?
C. The antenna is too short for operation on this band
*
(2AD-8-1.1)
What is meant by receiver overload?
C. Interference caused by strong signals from a nearby
transmitter
*
(2AD-8-1.2)
What is a likely indication that radio-frequency interference to
a receiver is caused by front-end overload?
B. The interference is independent of frequency
*
(2AD-8-1.3)
Your neighbor reports interference to his television whenever
you are transmitting from your amateur station. This
interference occurs regardless of your transmitter frequency.
What is likely to be the cause of the interference?
C. Receiver overload
*
(2AD-8-1.4)
What type of filter should be installed on a TV receiver as the
first step in preventing RF overload from an amateur HF station
transmission?
B. High pass
*
(2AD-8-2.1)
What is meant by harmonic radiation?
A. Transmission of signals at whole number multiples of the
fundamental (desired) frequency
*
(2AD-8-2.2)
Why is harmonic radiation from an amateur station undesirable?
A. It will cause interference to other stations and may result
in out- of-band signal radiation
*
(2AD-8-2.3)
What type of interference may radiate from a multi-band antenna
connected to an improperly tuned transmitter?
A. Harmonic radiation
*
(2AD-8-2.4)
What is the purpose of shielding in a transmitter?
C. It prevents unwanted RF radiation
*
(2AD-8-2.5)
Your neighbor reports interference on one or two channels of her
television when you are transmitting from your amateur station.
This interference only occurs when you are operating on 15
meters. What is likely to be the cause of the interference?
D. Harmonic radiation from your transmitter
*
(2AD-8-2.6)
What type of filter should be installed on an amateur
transmitter as the first step in reducing harmonic radiation?
B. Low pass filter
*
(2AD-8-3.1)
If you are notified that your amateur station is causing
television interference, what should you do first?
A. Make sure that your amateur equipment is operating properly,
and that it does not cause interference to your own television
*
(2AD-8-3.2)
Your neighbor informs you that you are causing television
interference, but you are sure your amateur equipment is
operating properly and you cause no interference to your own TV.
What should you do?
B. Work with your neighbor to determine that you are actually
the cause of the interference
*