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Serious ‘XM (aka W2XM) presents. Exam-Prep Jepperdee: General-Class Edition. G8B10 What does the number 31 represent in PSK31?. The approximate transmitted symbol rate. back.  G2A04 Which mode is most commonly used for voice on the 17- and 12-meter bands?. Upper sideband. back.

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Serious xm aka w2xm presents

Serious ‘XM(aka W2XM)presents

Exam-Prep Jepperdee:

General-Class Edition


Serious xm aka w2xm presents

G8B10

What does the number 31 represent in PSK31?



Serious xm aka w2xm presents

 G2A04 Which mode is most commonly used for voice on the 17- and 12-meter bands?



Serious xm aka w2xm presents

G2B05 Under normal conditions, what is the minimum fre-quency separation between SSB signals?



Serious xm aka w2xm presents

G2C07

When sending CW, what does a “C” mean when added to the RST report?



Serious xm aka w2xm presents

G2E04 (B) What segment of the 20-meter band is most often used for data transmissions?



Serious xm aka w2xm presents

G1B03

For what purpose might a radio amateur operate a beacon station?



Serious xm aka w2xm presents

G2D05 When’s it permis-sible to communicate with stations in coun-tries outside areas administered by FCC?



Serious xm aka w2xm presents

G1E01 do not object

What would dis-qualify a 3rd party from participating in stating a message over amateur radio?



Serious xm aka w2xm presents

G1A04 do not object

What amateur band permits only channelized ham operation?


Serious xm aka w2xm presents

60 meters do not object

back


Serious xm aka w2xm presents

G1B06 do not object

When is an ama-

teur station permit-ted to transmit secret codes?


Serious xm aka w2xm presents

To control a space station do not object

back


Serious xm aka w2xm presents

G5B03 do not object How many watts of electrical power are used if 400 VDC is supplied to an 800-ohm load?


Serious xm aka w2xm presents

200 watts do not object

back


Serious xm aka w2xm presents

G5B06 do not object

What is the PEP output from a xmtr if an o’scope measures 200 volts p-p across a 50-ohm dummy?


Serious xm aka w2xm presents

100 watts do not object

back


Serious xm aka w2xm presents

G5A02 do not object

What is reactance?



Serious xm aka w2xm presents

G6C02 capacitance or inductance

What is meant by the phrase MMIC?


Serious xm aka w2xm presents

Monolithic Microwave Integrated Circuit capacitance or inductance

back


Serious xm aka w2xm presents

G7B03 capacitance or inductance

What is the output of a 2-input AND gate when both inputs are high?


Serious xm aka w2xm presents

high capacitance or inductance

back


Serious xm aka w2xm presents

 G8B11 capacitance or inductance

How does FEC allow the receiver to correct errors in received data packets?



Serious xm aka w2xm presents

G8A12 capacitance or inductance

What signal(s) would be found at the output of a properly adjusted balanced modulator?


Serious xm aka w2xm presents

Both upper and lower sidebands capacitance or inductance

back


Serious xm aka w2xm presents

G4A03 capacitance or inductance

What is normally meant by operating a transceiver in "split" mode?



Serious xm aka w2xm presents

G7C01 frequenciesIn an SSB xmtr, in what kind of circuit is the output of the balanced modulator processed before going to the mixer?


Serious xm aka w2xm presents

Filter frequencies

back


Serious xm aka w2xm presents

G7B12 frequencies

Of choices A, B, AB, and C, which amplifier class is the most efficient?


Serious xm aka w2xm presents

Class C frequencies

back


Serious xm aka w2xm presents

G4E02 frequenciesWhat is the purpose of a "corona ball" on a HF mobile antenna?  



Serious xm aka w2xm presents

G9C02 frequenciesWhat is the approximate length of the driven element of a Yagi antenna?


Serious xm aka w2xm presents

1/2 wavelength frequencies

back


Serious xm aka w2xm presents

 G9C16 frequencies

How does the gain of a 2-element delta-loop compare to the gain of a two-el quad antenna?


About the same
About the same frequencies

back


Serious xm aka w2xm presents

G9D10 frequencies

Describe a Beverage antenna.



Serious xm aka w2xm presents

G4A06 frequenciesWhat device is often used to match the xmtr output to other than 50 ohms?


Antenna coupler
Antenna coupler frequencies

back


Serious xm aka w2xm presents

 G2D06 frequencies

How is a directional antenna pointed when making a “long-path” contact with another station?



Serious xm aka w2xm presents

G3B05 frequenciesWhat happens to sigs. with frequencies between LUF and MUF when they go into the ionosphere?



Serious xm aka w2xm presents

G3A10 frequencies

What causes HF propagation conditions to vary periodically in a 28-day cycle?



Serious xm aka w2xm presents

G3B06 frequenciesWhat usually happens to signals with frequencies below the Lowest Usable Frequency?



Serious xm aka w2xm presents

G3C09 frequenciesWhat allows a signal to be detected at a distance too far for ground wave but too near for normal sky-wave propagation?


Scatter
Scatter frequencies

back


Serious xm aka w2xm presents

G0B02 frequenciesWhat is the min. wire size that may be safely used for a circuit that draws up to 20 A continuously?


Awg number 12
AWG number 12 frequencies

back


Serious xm aka w2xm presents

 G0B09 frequencies

Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?



Serious xm aka w2xm presents

G0A09 lightning strikeWhat type of instrument can be used to accurately measure an RF field?



Serious xm aka w2xm presents

G0B08 lightning strike

What should be done by any person preparing to climb a tower that supports electrical devices?



Serious xm aka w2xm presents

G0A01 locked out and tagged

How does RF energy affect human body  tissue?


It heats body tissue
It heats body tissue locked out and tagged

back


Serious xm aka w2xm presents

isotropic antenna locked out and tagged




Henry
Henry directions

back


Serious xm aka w2xm presents

local oscillator directions






Thermistor
thermistor it to be used as a temperature sensor

back


Serious xm aka w2xm presents

DAILY DOUBLE it to be used as a temperature sensor

Your wager?

Here’s the question…


Serious xm aka w2xm presents

DAILY DOUBLE it to be used as a temperature sensor

Your wager?

Here’s the question…


Serious xm aka w2xm presents

The 3 connections on a quarter-inch stereo phone plug are called “tip,” “ring,” and what?


Sleeve
sleeve called “tip,” “ring,” and what?

To game 2 board



Capacitance
capacitance coil that is self-resonant?

Next slide


Serious xm aka w2xm presents

We hope Exam-prep Jepperdee was helpful! coil that is self-resonant?

Comments? Suggestions?