Fields from Unlicensed MW Systems Compliant with FCC §15.219

AM Radio discussion. Directional arrays are FUN!
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R. Fry
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Fields from Unlicensed MW Systems Compliant with FCC §15.219

Post by R. Fry » Sat Mar 26, 2016 6:08 pm

The graphic below might be interesting...

Image

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Deep Thought
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Re: Fields from Unlicensed MW Systems Compliant with FCC §15.219

Post by Deep Thought » Sun Mar 27, 2016 8:50 pm

Having worked with TIS installations it all comes down to the ground system. The short antenna has so much loss that anything you can do to minimize the ground losses pays big dividends.

The Part 15 AM "rule" of 100 mW DC input also assumes about 50 mW RF out. I doubt the extra 35 mW makes that much practical difference though.
Mark Mueller • Mueller Broadcast Design • La Grange, IL • http://www.muellerbroadcastdesign.com

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