476: What was the first name of Mr. Halligan, the founder of the Hallicrafters Co.?

477: What company manufactured "Viking" amateur radio gear?  

478: What is the name of the Israeli Ham Radio Organization?

479: What does the "R" stand for in the name "R. L. Drake & Co."?  

480: "KZ5" was once the callsign prefix for:

481: A QSL from Hawaii counts as:  

482: What is the national 10 meter FM calling frequency?  

483: Which mode can you legally use for station identification, regardless of which band you are operating on?

484: Which VK frequency band was removed from general service in the 1980's ?

485: How long does it take for a solar flare to affect radio propagation on Earth?

486: What does the acronym "MUF" stand for?  

487: Which of the following is another name for a poor operator?  

488: Which of the following states is in the U.S. call district number 7?    

489: If you are working towards your WAS award, and you move to another state, you would need to "start over" for WAS in all circumstances.

490: It is not necessary to be a licensed radio amateur to perform OO (Official Observer) duties, because the advisory notices are based on "monitoring only," and not 2-way communications.

491: What was the true name, of one of the co-holders, of the 1942 patent for frequency-hopping or spread spectrum radio, also known as actress... Hedy Lamarr?    

492: After World War I, what simple statement describes how many frequencies were available to hams?  

493: Greenland falls into which ITU region?

494: An OO (Official Observer) should not send an advisory notice to a ham as the result of an actual contact (QSO) with that ham.

495: Which experiment of Nikola Tesla has proven to be the most beneficial solely to modern radio communications?  

496: The ARRL is the only organization that can coordinate volunteer examining sessions in the USA.

497: R.A.C. is an acronym for:

498: An ARRL-certified VE (volunteer examiner) must officiate at at least one examining session each 3 years, to have his VE certificate renewed by ARRL.

499: Solar cycles have an average length of:

500: Official Observers (OO) can send advisory notices only to hams within their own call number district, to assure good reception and accurate reports.