Post on 24-Jan-2015
description
transcript
Serious ‘XM(aka W2XM)
presents
Exam-Prep Jepperdee:General-Class Edition
If you are viewing this on http://www.arrl.org/studying-for-the-general-license , you are looking at a non-interactive preview of a game, which, once downloaded as a PowerPoint file, is an educational and entertaining tool designed to be used in preparation for the General-class license exam.
The game plays similarly to the way ABC-TV’s Jeopardy plays. There should be several players and a master of ceremonies. Each category covers a chapter in the General Class License Manual, and each question is from General Class Question Pool Effective 7/1/11 – 6/30/15.
The two game boards have questions of equal point value, and each one has exactly one Daily Double. This permits a fair competition between the players on different boards. Make up your own rules! SFJ stands for semi-final Jepperdee and FJ stands for final jepperdee.
The entire file can be downloaded from this site as an interactive and playable game. You may also receive this file by e-mail by contacting the author at W2XM@ARRL.NET. Doing so will put you on W2XM’s e-mail list of game users (…and you will receive a schematic of the Serious ‘XM Exam-prep Jepperdee hardware set).
Procedures & Practices
Rules and Regulations
Components and Circuits
Radio Signals & Equipment
100 100 100 100
200 200 200 200
300 300 300 300
400 400 400 400
500 500 500 500 SFJ
ANTENNAS & XMSN LINES
PROPAGATION ELECTRICAL & RF SAFETY
VOCABULARY
100 100 100 100
200 200 200 200
300 300 300 300
400 400 400 400
500 500 500 500 FJ
G8B10
What does the number 31 represent in
PSK31?
back
The approximate transmitted symbol
rate
G2A04 Which mode is most commonly used for voice on the 17-
and 12-meter bands?
back
Upper sideband
G2B05 Under normal conditions, what is the minimum fre-quency separation
between SSB signals?
back
Approx. 3 kHz
G2C07
When sending CW, what does a “C”
mean when added to the RST report?
back
Chirpy or unstable signal
G2E04 (B) What segment of the 20-meter
band is most often used for data
transmissions?
back
14.070 - 14.100 MHz
G1B03
For what purpose might a radio
amateur operate a beacon station?
back
Observation of propagation and
reception
G2D05 When’s it permis-sible to communicate with stations in coun-tries outside areas administered by FCC?
back
When contact is with hams in
countries whose administrations do
not object
G1E01
What would dis-qualify a 3rd party
from participating in stating a message
over amateur radio?
back
The third party’s amateur license had ever been
revoked
G1A04
What amateur band permits only channelized ham
operation?
back
60 meters
G1B06
When is an ama-teur station permit-
ted to transmit secret codes?
back
To control a space station
G5B03 How many watts of electrical power are used if 400 VDC
is supplied to an 800-ohm load?
back
200 watts
G5B06
What is the PEP output from a xmtr if an o’scope measures 200 volts p-p across a
50-ohm dummy?
back
100 watts
G5A02
What is reactance?
back
Opposition to the flow of alternating current caused by
capacitance or inductance
G6C02
What is meant by the phrase MMIC?
back
Monolithic Microwave
Integrated Circuit
G7B03
What is the output of a 2-input AND gate when both inputs are high?
back
high
G8B11
How does FEC allow the receiver to
correct errors in received data
packets?
back
By transmitting redundant
information with the data
G8A12
What signal(s) would be found at the
output of a properly adjusted balanced
modulator?
back
Both upper and lower sidebands
G4A03
What is normally meant by operating
a transceiver in "split" mode?
back
The transceiver is set to different transmit and
receive frequencies
G7C01 In an SSB xmtr, in what kind of circuit is
the output of the balanced modulator
processed before going to the mixer?
back
Filter
G7B12
Of choices A, B, AB, and C, which
amplifier class is the most efficient?
back
Class C
G4E02 What is the purpose of a
"corona ball" on a HF mobile antenna?
back
To reduce high voltage discharge from the tip of the
antenna
G9C02 What is the approximate length
of the driven element of a Yagi
antenna?
back
1/2 wavelength
G9C16
How does the gain of a 2-element delta-
loop compare to the gain of a two-el quad
antenna?
About the same
back
G9D10
Describe a Beverage antenna.
back
A very long and low directional
receiving antenna
G4A06 What device is often used to
match the xmtr output to other than 50 ohms?
Antenna coupler
back
G2D06
How is a directional antenna pointed when making a
“long-path” contact with another station?
180 degrees from its short-path
heading
back
G3B05 What happens to sigs. with frequencies
between LUF and MUF when they go
into the ionosphere?
They are bent back to the Earth
back
G3A10
What causes HF propagation
conditions to vary periodically in a 28-
day cycle?
The Sun’s rotation on its axis
back
G3B06 What usually happens to signals with frequencies below the Lowest
Usable Frequency?
back
They are completely
absorbed by the ionosphere
G3C09 What allows a signal to be detected at a distance too far for
ground wave but too near for normal sky-wave propagation?
Scatter
back
G0B02 What is the min. wire size that may be
safely used for a circuit that draws up
to 20 A continuously?
AWG number 12
back
G0B09
Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?
A soldered joint will be destroyed by the heat of a lightning strike
back
G0A09 What type of instrument can be used to accurately
measure an RF field?
A calibrated field-strength meter
with a calibrated antenna
back
G0B08
What should be done by any person
preparing to climb a tower that supports electrical devices?
Make sure all circuits that supply power to the tower are locked out and
taggedback
G0A01
How does RF energy affect human body
tissue?
It heats body tissue
back
isotropic antenna
An antenna that radiates and/or receives equally in all directions
back
The basic unit of inductance
Henry
back
local oscillator
an oscillator that generates one of the input signals
to a mixerback
Solar cycle
the 10.7-year periodic variation
in solar activityback
A resistor with a precise temperature coeffient that allows
it to be used as a temperature sensor
thermistor
back
DAILY DOUBLE
Your wager?
Here’s the question…
DAILY DOUBLE
Your wager?
Here’s the question…
Semi-final Jepperdee
TOPIC: NOMENCLATURE
YOUR WAGER?
The 3 connections on a quarter-inch stereo phone plug
are called “tip,” “ring,” and what?
sleeve
To game 2 board
sleeve
To game 2 board
Final Jepperdee
TOPIC:
RESONANCE
YOUR WAGER?
Besides induc-tance, what
electrical quantity exists in a coil that is self-resonant?
capacitance
Next slide
We hope Exam-prep Jepperdee
was helpful!
Comments? Suggestions?