326: Who developed the Yagi antenna?

327: Aluminum is as good of a conductor as gold.     

328: How many elements does a pentode tube contain?  

329: Lightning doesn't have to directly strike your equipment to do damage.  

330: What does the acronym CTCSS stand for?    

331: Where did the term "73" originate from?    

332: Which is the official Call Sign of the American Radio Relay League?  

333: In electronics, "rectification" means:  

334: What is the minimum age requirement for being a volunteer examiner?  

335: 3db + 7db = 10db    

336: What state is ARRL headquarters located in?  

337: What is a "Boatanchor", in amateur radio slang?

338: Which foreign or "DX" station was the most successful, single-op, contest operator in the ARRL DX Competition during the first 40 years of this event (Phone + CW)?  

339: What ham callsign was used in the movie "Phenomenon"?

340: What was once used as an identifier in Novice Class callsigns?    

341: A DC power supply may include all of the following, except:  

342: The unit used to describe losses in feedlines is:  

343: The scientist who first observed sunspots and suffered loss of vision from gazing into the sun was:    

344: Why is the lowest ionosphere layer to affect radio propagation in North America the D layer?  

345: What 'raydiation' is responsible for medium angle rays sometimes traveling further than lower angle waves.  

346: The radio operator aboard the Titanic sent SOS, along with an older distress call:    

347: Which American station has more ARRL DX Multi-operator contest wins than any other (Phone+CW) ?

348: Who wrote a play, with a title that contains 2 of the names, in the international phonetic alphabet?    

349: The "Considerate Operators Frequency Guide" says that FM simplex on 10 Meters should be on:  

350: What is loop modulation?