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A2541R24x
– User’s Manual
Release Date 11/22/13
2.3.
Approved Usage
The A2541R24A and A2541R24C modules have been approved for use in the US, Canada and
Europe. The user is encouraged to use minimum power required to establish a link, thus
minimizing interference.
Changes or modifications to the module and/or operation outside the limits are prohibited and
could void the user’s authority to operate the modules.
2.3.1.
USA and Canada
Within the USA and Canada, the A2541R24A and A2541R24C modules have been approved
for use as digitally modulated transmitters, for which they conform to the BW (a minimum of 500
kHz 6-dB BW for US, a maximum BW of 0.5% of the carrier frequency for Canada), power
spectral density (max of 8 dBm / 3 kHz), total output power (max of 1W including the antenna
gain) and spurious radiation (harmonics and others including the restricted bands)
requirements.
Table 2
shows approved modulation types and frequencies of operations with the corresponding
maximum output power values and PA_Table register settings. These modules must be
operated at or below the indicated power levels. Using the modules with higher power levels are
prohibited, and will void the user’s authority to operate the modules under current FCC/IC
certification.
Table 3
shows available power levels from the device along with the corresponding PA_Table
register settings. Users are encouraged to use minimum power required to establish a link, thus
minimizing interference and current consumption.
Table 2 Approved Modulation Types and Power Levels for FCC/IC and ETSI
Approved Modulation Types
Frequency band of
operation (MHz)
Max Allowed
Power (dBm)
PA_Table Value
(Hex)
GFSK 2Mbps,500kHz Deviation
2402 - 2480
+1
0xEF
GFSK 2Mbps, 320kHz Deviation
2402 - 2480
+1
0xEF
GFSK 1Mbps, 250kHz Deviation
2402 - 2480
+1
0xEF
GFSK 1Mbps, 160kHz Deviation
2402 - 2480
+1
0xEF
GFSK 250kbps, 160kHz Deviation
2402 - 2480
+1
0xEF
MSK 500kbps
2402 - 2480
+1
0xEF
MSK 250kbps (
ETSI only
)
2402 - 2480
+1
0xEF
