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Articles by R.A. Adenodi
Total Records ( 2 ) for R.A. Adenodi
  R.A. Adenodi , O.O. Alabi , B.F. Akinwale and F.O. Akinluyi
  The necessary d. c. supply for electronics instrument may be drawn from batteries. However, the e.m.f. of batteries is not usually constant throughout life and also there is the danger of leakage which may endanger both the electronic circuit and the users. Power supply is a constant d.c voltage source suitable for operating electronic instruments without the danger associated with batteries. The 14-pin DIL (ľA723A) version of voltage regulator IC was incorporated to continuously monitors the d.c voltage output and automatically holds it constant irrespective of changes in the load current and unregulated input voltage. A divided fraction of the output voltage is compared with a fraction of the stable voltage reference to give a current of 150mA, which is boasted to 500 mA by an external transistor. The unit has excellent stability.
  R.A. Adenodi , M.O. Ajewole , M.T. Babalola and A.T. Adediji
  Communication system analysis is important for the prediction of the performance of communication links. A receiving earth station set up at Akure (lat. 7.28°N, long. 5.2°E) for this study accessed eight space stations and a 40 Mhz oscilloscope measured the audio components of the signals received. The propagation losses incurred, the figures of merit of the space transmitter and the receiver are estimated. The results show that in clear weather conditions, the path loss capability exceeds the actual path loss for each channel. The actual path loss is mainly due to free space path loss. Satellite audio signals can conveniently be transmitted from Atlantic ocean region, Indian ocean region and Pacific ocean region and received intelligent output at any part of Akure with a parabolic dish antenna of 0.5 efficiency.
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