Campbell Scientific RF400/RF410/RF415 Spread Spectrum Radio/Modem - Manual (Page 85)

Appendix L. RF400/RF410 Average Current Drain Calculations
L-7
EXAMPLE #5 (Base RF400/RF410 in default “<4 mA, 1 sec Delay” standby mode)
The RF400/RF410s in this example are configured for the default average
standby mode current. The same amount of data (10 data points) are collected
as in Example 1, however the frequency of collection is changed from once a
minute to once an hour.
It = Is + Ih + Iq + Ir + Ii
Calculating each term:
Is = table mA value = 4 mA
It
≈ 4.1 mA
ms) 700 header" long (" mA 0.014 mA 73
ms 3,600,000
ms 700
73
(ms) T
(ms) L
Ih
= = Ч = Ч =
mA
mA 0.0004 mA 73
(ms) 3,600,000
(ms) 20
Iq
= × =
mA 0.0004 mA 24
(ms) 3,600,000
ms] 20 (ms) 45 [
Ir
= ×
+
=
50) sleep" to inactivity of time " default (using mA 0.033 mA 24
(ms) 3,600,000
ms 5000
Ii
= = Ч =