1101: A simple way to lower the frequency of a crystal would be to put pencil lead on the quartz crystal.    

1102: Coaxial cable came into general use during which years?      

1103: In 1915, John R. Carson applied for a patent for his idea to suppress the carrier and one sideband of an AM signal. But when did the first trans-Atlantic SSB radio telephone demonstration take place?

1104: When working at a special event (such as a Hamfest or parade) which of these are the best to have with you?    

1105: How does the forward voltage drop of a silicon diode change with temperature?    

1106: Samuel F. B. Morse attended what prestigious preparatory school?

1107: Whic is the cut-off frequency for a rigid rectangular waveguide of dimension a and b (a>b)? Consider only TE10 mode is propagating.

1108: What is IR compensation?

1109: Why is it always necessary to put down radials when constructing a 1/4 wave vertical ground mounted antenna?

1110: When did Alessandro Volta construct his electric cell?

1111: What was a diameter of the largest coil used by Tesla in his transmitter?

1112: Where is the Nikola Tesla museum located?

1113: In 1909 the Nobel Prize for the development of RADIO was shared between Gugliemo Marconi and another great scientist. What's his name?

1114: When did giant radio impulses (generated by The Russian Woodpecker) interfere with HF radiotransmissions for the first time?

1115: S-9 on your S-meter is equal to 50µV of HF voltage at the receiver input. What will be your S-meter indication with 0.05V input?

1116: What is the earliest age someone in Russia may be and get their own HAM license?

1117: What is the proper way to tune a transmitter ?

1118: When did CABRILLO become the official ARRL contest file format?

1119: What is a standard for the data exchange between the various ham logging software?

1120: Which of the following was a DXpedition by Don Miller, W9WNV?

1121: What is the alternate contest file standard supported by DARC in Europe?    

1122: What is a penalty for a miscopied callsign in electronic logs in IARU HF World Championship?      

1123: Which Russian special prefix not permitted for contests?      

1124: When did Trio-Kenwood begin producing ham radio equipment?    

1125: What type of tube was used in the final stage of KENWOOD TS520(530,820,830) transceivers?