CrazyEngineers Forum - Electrical & Electronics Engineering |
- Measuring an electric field
- Remote Controler on Wall on/off switch for bulb
- what will happen to current earth fult current for system bellow
| Posted: 13 Oct 2010 07:30 PM PDT Riddle me this: If you have a battery-powered radio, can you think of a way to use it to get a qualitative measurement of local field strength of RF? I would say all you need to do is tune the radio to different stations and try to adjust the volume to the same "strength" each time. So you can use an ordinary portable radio to record the appropriate volume setting for a number of local and remote stations to get a qualitative measurement of the sum of their RF outputs. Is this like finding an RMS background field strength, and would using a longer or shorter aerial mean a kind of calibration of the radio, in that case? And would using a signal meter that displays true RMS be like using an all-band radio that tunes every station at once, at different sound volumes? |
| Remote Controler on Wall on/off switch for bulb Posted: 13 Oct 2010 01:34 PM PDT Hello, Every body Esp. "CE - Newbie" could you help me devloping remot controler I am A computer Science student and now I am pursuing my MSc in Prague If any on have any or related expriance using infrared/light wave and resource as well what I have to read thank you in advance! |
| what will happen to current earth fult current for system bellow Posted: 13 Oct 2010 12:52 PM PDT i am giving a supply to a system where in place of U,V,W supply i am giving U,U,V supply to a system what will be the vectorial current representation of voltages and current and how |
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