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  • Amateur Radio Quiz: Game, Set, Match!

    06/09/2010. By H. Ward Silver, N0AX ARRL Contributing Editor n0ax@arrl.net. Impedance matching is a function performed many times in every radio and every radio shack. Sometimes it's done inside a circuit and out of sight. Sometimes an automatic tuning unit clicks its way to unity SWR. And sometimes we just twiddle  ... Learn More

  • Amateur Radio Quiz: The Big Unit

    Feb 9, 2012 ... Amateur Radio deals with everything -- from the very, very small to the very, very large -- so it's particularly important that we know how to work with units of measurement. One of the easiest checks on a calculation is whether the units “ work out” they way you expect. To do that requires a certain facility with ... Learn More

  • Amateur Radio Quiz: In A Perfect Sol-itude

    05/03/2010. Amateur Radio Quiz: In A Perfect Sol-itude. H. Ward Silver, N0AX n0ax@arrl.org. With scientific data about our stellar parent beaming in from every quarter and sunspots popping up like crocuses in the spring, it seems appropriate to sample your solar savvy. You may find that you're so bright, you gotta wear ... Learn More

  • Amateur Radio Quiz: Your Days Are Numbered

    04/03/2013. H. Ward Silver, N0AX n0ax@arrl.net. Worse than the dreaded “word problem,” this April quiz is full of backward problems where I give the answer and you pick the problem. Or something like that. You'll figure it out! 1) 9 a. The dB equivalent of a power ratio of 4. b. The number of wavelengths traveled by a 7 ... Learn More

  • Amateur Radio Quiz: I Knew That!

    Jul 31, 2009 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More

  • Amateur Radio Quiz: In the Here and Now

    09/22/2010. By H. Ward Silver, N0AX n0ax@arrl.net. The last quiz took a long look in the rear-view mirror. Let's turn around to the future and take a look out the windshield with this collection of new ham radio jargon! 1) What information is contained in a “spot”? a. Time b. Frequency c. Call sign d. All of the above. 2) Which of ... Learn More

  • Amateur Radio Quiz: Blasts from the Past

    Amateur Radio Quiz: Blasts from the Past. TAGS: quiz. 01/27/2010. By H. Ward Silver, N0AX noax@arrl.org. With all of the old QST magazines online for ARRL members, why not take a tour through radio history and see if you can find the answers to these questions in the articles and advertising sections! 1) A flying animal ... Learn More

  • Amateur Radio Quiz: Polar Pursuits

    02/24/2011. By H. Ward Silver, N0AX n0ax@arrl.net. The VP8ORK DXpedition has just concluded, with the Braveheart sailing back into Ushuaia, Argentina -- all hands safe and sound after crossing the Drake Passage! Polar expeditions and stations have been a big part of ham radio lore since the days of Admiral Perry and ... Learn More

  • Amateur Radio Quiz: Getting One's Bearings

    11/20/2010. By H. Ward Silver, N0AX n0ax@arrl.net. Hams need to point their antennas accurately, but how can you do that if you don't know the words used to describe direction? Ready, fire, aim! 1) For two different stations to have short- path bearings that are exactly reciprocal -- that is, 180 degrees apart -- which of the ... Learn More

  • Amateur Radio Quiz: The Transistor, Our Three-Legged Friend

    01/04/2010. By H. Ward Silver, N0AX ARRL Contributing Editor n0ax@arrl.org. What piece of active equipment in the ham shack doesn't have a transistor in it somewhere? Could you troubleshoot that equipment? While transistors are nearly ubiquitous, we often don't understand their inner workings as well as we might like ... Learn More