TS8
Rev. 1.4 5
Table 5 summarizes the RF parameters of the EM3x Module.
Table 5. RF Characteristics of the EM3x Module
Parameter Min Typ Max Unit
Frequency Range 2405 — 2480 MHz
Channel Spacing — 5 — MHz
RX Sensitivity (1% PER, 20-byte packet)
Normal Mode — -100 -94 dBm
Boost Mode — -101 -95 dBm
Adjacent Channel Rejection
High Side — 35 — dB
Low Side — 35 — dB
2
nd
High Side — 43 — dB
2
nd
Low Side — 43 — dB
All other channels — 40 — dB
TX Power (Maximum)
Boost Mode — 8 — dBm
Normal Mode — 3 — dBm
Error Vector Magnitude (Offset EVM) (per IEEE 802.15.4-2003)
PSD (3.5 MHz from carrier)
Relative -20 — — dB
Absolute -30 — — dBm
4 EM3x Configurations
The IC on the EM3x Module can be set to different RF frequency channels as well as different power levels. When
using the nodetest application on the module, the frequency channels and output power levels can be configured
through a command line interface (CLI).
In order to configure the output power, the setTXPower command can be used. Table 6 demonstrates the
setTXPower command and the expected power output. Note that these are the typical expected power output
levels based on the performance of the EM3x IC and actual results are dependent on the module provider design
implementation.
Note: Table 6 refers to the non-PA versions of the modules. For the version with a PA, the output power should be
set to -5 dBm in order to achieve +20 dBm output power.
Table 6: List of TX output powers when using SetTxPower
SetTxPower
[signed hexadecimal]
Output Power
(dBm)
SetTxPower 9 +3
SetTxPower 8 +8
SetTxPower 7 +7
SetTxPower 6 +6
SetTxPower 5 +5
