[TowerTalk] 2 dB

[Steve Sacco NN4X]

  WRT to "22 dB" versus "20 dB", this is not an uncommon line of 
thinking, but viewed from a competitive angle, it's profoundly incorrect.

It's NOT that you're 2 dB louder when they're hearing you 20 or 22 dB 
over S9 - it's when you hear/work stations which are 2 dB out of the 
noise, and nobody else can, because everyone else's antenna systems are 
2 db worse than yours.  It's when you're one of several stations all 
chasing a p-weak mult at the end of a band opening, and the op answers 
YOU because you're 1/3 of an S-unit louder than the others.

THAT is the importance of 2 dB.

AB7E did some cool work awhile ago WRT "Minimum Dicernable Difference".  
Check it out: http://www.ab7e.com/weak_signal/mdd.html

73,

Steve
NN4X (hopefully at least 2 dB louder than you  :-)  )






In a message dated 4/10/2015 8:21:11 P.M. Coordinated Universal Time,
bcarling at cfl.rr.com writes:

[ SNIP ]
"...a nice happy feeling and reports of 22 dB over S9 instead of 20 dB 
over S9. I am sure that they are very good. I never denied that. BUT - 
To each his own! "
[ /SNIP ]