Exam-prep Jepperdee:2014 Tech Edition…a game to help prepare contestants and audience for the entry-level ham examproduced by Bob Raffaele, W2XM
This game is to be played in the PowerPoint “slide show” mode. Operation of the game is almost intuitive, and you can make up your own rules. Each numeric point value on either game board is a hyperlink which reveals a question. Advancing the game one slide past the question (by clicking the screen) displays the answer. “Done” on the answer slide returns you to the game board. “SFJ” (clickable) stands for “semi-final jepperdee” and “FJ” (also clickable) means “final jepperdee;” clicking anywhere on the screen reveals the final- or semi-final-jepperdee question. There is one daily double on each board; click on either “daily or “double.” For most fun, appropriate hardware (lights, push-buttons, sounder, lockout circuitry) should be used. A diagram is available from the author.
T3B05 How does the wavelength of a radio wave relate to its frequency? .
0.5 watts done
T8A03 Which type of voice mode is most often used for long-distance (weak signal) contacts on the VHF and UHF bands? .
T2B05 What deter-mines the amount of deviation of an FM (as opposed to PM) signal? .
T6B10 What are the three electrodes of a PNP or NPN transistor? .
T5A05 What is the elec-tricalterm for the electromotive force (EMF) that causes electron flow? .
T5C08What is the formula used to calculate electrical power in a DC circuit? .
T5D08 What is the current flowing through a 100-ohm resistor connected across 200 volts? .
2 amperes done
T3A06What term describes the fluttering sound from mobile sta-tionsthat are moving while transmitting? .
Picket fencing done
T9B05 What generally happens as the frequency of a signal going through coaxial cable is increased? .
The loss increases. done
T4A05 Where should an in-line SWR meter be connected to monitor the SWR of the antenna system? .
T7C08What instrument other than an SWR meter could you use to determine if a feed line and antenna are properly matched? .
T5B10What is the approx. amount of change (in dB) of a power decrease from 12 watts to 3 watts? .
-6 dB done
About 12 volts done
T2B03What type of receiver audio muting is controlled by the absence of an RF signal? .
Carrier squelch done
T4A04 Where must a filter be installed to reduce harmonic emissions from your station? .
T7A10 What device increases the low-power output from a handheld transceiver? .
A 1-way xmission of measurements to somewhere remote from the measuring instrument done
T2B10What Q signal indicates that you are receiving interference from other stations? .
Hams who’ve volun-tarily registered their qual. and equip. for communications duty in the public svc. done