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Old July 19th 09, 04:03 AM posted to rec.radio.amateur.antenna
Jeff Liebermann[_2_] Jeff Liebermann[_2_] is offline
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Default dB relation TX/RX

On Sat, 18 Jul 2009 19:20:04 -0700 (PDT), ve2pid
wrote:

Hope that my question has some sense...: If we double the power
radiated by an antenna (+3 dB), how does it translate on the S-meter
at a receiver 'far' away.. i.e. is the difference in dB on that meter
has some mathematical relation to the 3 dB change at the transmitter?


One S unit is allegedly 6dB. Doubling the power would therefore be
about 1/2 an S unit.
http://en.wikipedia.org/wiki/S_meter
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Jeff Liebermann
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