QUES: Compass-M1 transmits in 3 bands: E2, E5B, and E6. In each frequency band two coherent sub-signals have been detected with a phase shift of 90 degrees (in quadrature). These signal components are further referred to as "I" and "Q". The "I" components have shorter codes and are likely to be intended for the open service. The "Q" components have much longer codes, are more interference resistive, and are probably intended for the restricted service. IQ modulation has been the method in both wired and wireless digital modulation since morsetting carrier signal 100 years ago.

What frequency bands does Compass-M1 transmit in?
What is the answer?
ANS: E2, E5B, and E6
QUES: At the 1966 "Man the Hunter" conference, anthropologists Richard Borshay Lee and Irven DeVore suggested that egalitarianism was one of several central characteristics of nomadic hunting and gathering societies because mobility requires minimization of material possessions throughout a population. Therefore, no surplus of resources can be accumulated by any single member. Other characteristics Lee and DeVore proposed were flux in territorial boundaries as well as in demographic composition.

When was the Man the Hunter conference?
What is the answer?
ANS: 1966
QUES: Brasília has a tropical savanna climate (Aw) according to the Köppen system, with two distinct seasons: the rainy season, from October to April, and a dry season, from May to September. The average temperature is 20.6 °C (69.1 °F). September, at the end of the dry season, has the highest average maximum temperature, 28.3 °C (82.9 °F), has major and minor lower maximum average temperature, of 25.1 °C (77.2 °F) and 12.9 °C (55.2 °F), respectively. Average temperatures from September through March are a consistent 22 °C (72 °F). With 247.4 mm (9.7 in), January is the month with the highest rainfall of the year, while June is the lowest, with only 8.7 mm (0.3 in).

When is Brasilia's rainy season?
What is the answer?
ANS:
October to April