网上的蜘蛛
分类: 系统运维
2008-07-25 16:04:48
# Power vs. Range
# Assume AT&T's Wavelan PCMCIA card -- Chalermek
# Pt_ = 8.5872e-4; // For 40m transmission range.
# Pt_ = 7.214e-3; // For 100m transmission range.
# Pt_ = 0.2818; // For 250m transmission range.
# Pt_ = pow(10, 2.45) * 1e-3; // 24.5 dbm, ~ 281.8mw
Phy/WirelessPhy set Pt_ 8.5872e-4