CETECOM Inc.
Test report no.:EMC_381EN328-2002
Issue date:2003-01-10
Page 7 (33)
EFFECTIVE ISOTROPIC RADIATED POWER
CLAUSE 5.2.1
EIRP is calculated by method described under sub clause 7.2.1.2, using following formulae;
P = A + G + 10 log (1/x);
Where;
A = Average power (measured)
Freq.(MHz)
Average Power measured using wide band Power meter (dBm)
2412 13.9
2442 14.4
2472 14.4
G = Antenna gain = 1dBi (Provided by Broadcom)
x = Duty cycle = 0.945 (measured)
x = Tx
on
/ Tx
on
+ Tx
off
Tx
on
2.08msec
Tx
on
+ Tx
off
2.2msec
x 0.945
10log(1/x) 0.24
Worst case variance (delts) at extreme temperatures from nominal power measured at 23ºC
(Provided by Broadcom)
Freq.(MHz)
Delta in dB @ 0
ºC
Delta in dB @ +70
ºC
2412 +0.01
+0.27
2442 +0.45
+0.29
2472 +0.21
+0.07
