Simple CATV Upstream Fiber Optic Receiver Uses DC Pilot AGC: 01/20/03 Electronic Design - Ideas for Design / Upstream fiber links in a community antenna television (CATV) system are usually among the most difficult elements of the network to align properly. Set-top boxes and cable modems employ "long-loop" automatic gain control (AGC) (in other words,...
Simple Circuit Uses Optical Fiber To Send Relative Humidity Data : 04/01/02 Electronic Design - Ideas for Design / The circuit shown in the figure measures relative humidity in air at the low temperatures found in applications like cold storage of food items and greenhouses. Instead of using electrical signal cables that...
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