I'm new to the reverse beacon network and have been reading about db, here: http://kf6hi.net/radio/SNR.html What I'm still trying to wrap my head around is my signal report out of JA on 40m. I'm in Korea as HL1ZIX, so I'm around 587 miles away. My antenna is a full wave 40m loop at 18m above ground. I'm transmitting CQ in CW at 0 watts (which is 700mw on the Icom 7300). I'm still getting a report of 15db out of JO1YYP, 587 miles away My current noise floor is s8, with no attenuation -- his probably less. So that means I'm about 2.5 S-units above the noise floor at that CW skimmer at 700mw? Thanks.