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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What does the number 31 represent in PSK31?
G2A04 Which mode is most commonly used for voice on the 17- and 12-meter bands?
G2B05 Under normal conditions, what is the minimum fre-quency separation between SSB signals?
When sending CW, what does a “C” mean when added to the RST report?
G2E04 (B) What segment of the 20-meter band is most often used for data transmissions?
For what purpose might a radio amateur operate a beacon station?
G2D05 When’s it permis-sible to communicate with stations in coun-tries outside areas administered by FCC?
What would dis-qualify a 3rd party from participating in stating a message over amateur radio?
What amateur band permits only channelized ham operation?
When is an ama-
teur station permit-ted to transmit secret codes?
G5B03 How many watts of electrical power are used if 400 VDC is supplied to an 800-ohm load?
What is the PEP output from a xmtr if an o’scope measures 200 volts p-p across a 50-ohm dummy?
What is reactance?
Opposition to the flow of alternating current caused by capacitance or inductance
What is meant by the phrase MMIC?
What is the output of a 2-input AND gate when both inputs are high?
How does FEC allow the receiver to correct errors in received data packets?
What signal(s) would be found at the output of a properly adjusted balanced modulator?
What is normally meant by operating a transceiver in "split" mode?
G7C01 In an SSB xmtr, in what kind of circuit is the output of the balanced modulator processed before going to the mixer?
Of choices A, B, AB, and C, which amplifier class is the most efficient?
G4E02 What is the purpose of a "corona ball" on a HF mobile antenna?
G9C02 What is the approximate length of the driven element of a Yagi antenna?
How does the gain of a 2-element delta-loop compare to the gain of a two-el quad antenna?
Describe a Beverage antenna.
G4A06 What device is often used to match the xmtr output to other than 50 ohms?
How is a directional antenna pointed when making a “long-path” contact with another station?
G3B05 What happens to sigs. with frequencies between LUF and MUF when they go into the ionosphere?
What causes HF propagation conditions to vary periodically in a 28-day cycle?
G3B06 What usually happens to signals with frequencies below the Lowest Usable Frequency?
G3C09 What allows a signal to be detected at a distance too far for ground wave but too near for normal sky-wave propagation?
G0B02 What is the min. wire size that may be safely used for a circuit that draws up to 20 A continuously?
Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?
G0A09 What type of instrument can be used to accurately measure an RF field?
What should be done by any person preparing to climb a tower that supports electrical devices?
How does RF energy affect human body tissue?
A resistor with a precise temperature coeffient that allows it to be used as a temperature sensor
The 3 connections on a quarter-inch stereo phone plug are called “tip,” “ring,” and what?
To game 2 board
Besides induc-tance, what electrical quantity exists in a coil that is self-resonant?