some questions about rssi,signal etc

Live forum: http://rt2x00.serialmonkey.com/viewtopic.php?t=5200

lianglianglv

10-02-2009 01:57:17

hello friends,
in file rtusb_data.c,there is a line code

ph->rssi.data = ph->signal.data - ph->noise.data;

rssi meansReceived Signal Strength Indication,
but "ph->signal.data - ph->noise.data" means signal noise rate,
why they equal?
can you help me?thanks.