Radio Characteristics; Module Rf Output Power - SimCom SIM900B Hardware Design

VBAT
GND
RXD, TXD
Antenna port
SPK1P/ SPK1N
SPK2P/ SPK2N
MIC1P/ MIC1N
MIC2P/ MIC2N
PWRKEY
4.9

Radio Characteristics

4.9.1

Module RF Output Power

The following table shows the module conducted output power, it is followed by the 3GPP TS 05.05 technical
specification requirement.
Table 22: SIM900B GSM 900 and GSM 850 conducted RF output power
PCL Nominal output power (dBm)
0-2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19-31
SIM900B_Hardware Design_V2.01
±5KV
±5KV
±2KV
±5KV
±2KV
±2KV
GSM 900 and EGSM 850
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
Tolerance (dB) for conditions
Normal
±2
±3
±3
±3
±3
±3
±3
±3
±3
±3
±3
±3
±3
±3
±5
±5
±5
±5
37
Smart Machine Smart Decision
±10KV
±10KV
±8KV
±10KV
±5KV
±8KV
Extreme
±2.5
±4
±4
±4
±4
±4
±4
±4
±4
±4
±4
±4
±4
±4
±6
±6
±6
±6
2012-05-07