In a message dated 12/26/06 6:27:25 PM Eastern Standard Time, [EMAIL PROTECTED] writes:
> Transmit power 500 watts S-9 +10 db > 50 watts S-9 (+ 10 db over 9) > 12.5watts S-8 > 3.1 watts S-7 > > You lose 1 S-Unit each time you're reducing power by 1/4. Yup - *if* the receiver is really 6 dB per S unit. Now look at these numbers: Transmit power 1280 watts S-6 320 watts S-5 80 watts S-4 20 watts S-3 5 watts S-2 If the receiving station can't dig out your S-2 signal, no QSO. > > One S-unit consists of 6db increase or decrease in received signal > strength. Transmit power must be increased FOUR TIMES to achieve a > signal strength increase of one S-Unit! > > A QRP signal is mighty respectable at S-7 on anyone's receiver. > *if* the path is such that you are S-7. 73 de Jim, N2EY _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com