User's Manual

2.3 PCB Stack up for the reference board:
2.4 PCB Antenna Specification:
The table below lists the technical specification of the PCB antenna used in the ATSAMR30M Sensor
Board which is the second reference design for the ATSAMR30M18A module.
Parameter
Value
Peak gain
0.44 dBi
Operating Frequency
868- 928 MHz
2.5 Test Procedure for ensuring compliance
The below test is to be performed both at design verification stage and in production for ensuring
compliance.
• Initiate Continuous Transmission in the appropriate modulation mode from the device i.e.,
868.3 MHz; BPSK-20 for European band and 914 MHz; BPSK-ALT-40 for North American band.
• Remove the 0 Ohm resistor mounted at L2 to isolated PCB antenna and Verify RF power through
conducted measurement at pad1 of L2.
2. Regulatory Approval
3.1 United States (FCC)
The ATSAMR30M18A module has received Federal Communications Commission (FCC) CFR47
Telecommunications, Part 15 Subpart C “Intentional Radiators” modular approval in accordance with
Part 15.212 Modular Transmitter approval. Modular approval allows the end user to integrate the
ATSAMR30M18A module into a finished product without obtaining subsequent and separate FCC
approvals for intentional radiation, provided no changes or modifications are made to the module
circuitry. Changes or modifications could void the user’s authority to operate the equipment.