51: In what year did Art Collins start his radio company?

52: What is the meaning of the term "TNT" as applied to ham transmitters?

53: How many HF Bands are there available to US amateurs?  

54: Which HF band is considered the most reliable to provide year round intercontinental communications?

55: Which of these, include all prefixes belonging to the American possession of Puerto Rico?    

56: 440 to 450mhz is assigned to commercial operations.    

57: Which Iota number is for Puerto Rico ?

58: Which of these prefixes are not in Africa?

59: The Soviet radar that plagued the HF bands with QRM a number of years ago, was nicknamed the:    

60: What is a rover?    

61: Which space shuttle carried Owen Garriott, W5LFL into Space?  

62: The TX-62 tube transmitter was manufactured by what company?    

63: Which of these are not valid UK callsigns?

64: In the UK class B amateurs can only operate on frequencies above

65: Center-fed half-wave dipoles have an input resistance of approximately:  

66: The approximate height of the E-layer is?  

67: A very well-known radio and early television personality was also known as K4LIB on the amateur bands; Who was this personality?  

68: Which of these Islands belong to KP4 land (Puerto Rico)?  

69: What is the the monthly magazine received by Radio Society of Great Britain (RSGB) members?  

70: In what year was the first UK novice license issued?  

71: UK amateurs are allowed to use /am (aeronautical mobile) on the end of their callsigns

72: When was DXCC introduced?

73: What is the maximum power U.K. amateurs can use on a full class A license?  

74: The first woman licensed in the U.K. in 1927 was G6YL. What was her name?  

75: H3E is the FCC designation for...?