Specifications

E-mail:[e-mail] Rev1.0
RFM97C
B
www.hoperf.com
INTEGRATION INSTRUCTIONS
FCC rules
The RFM97C is an LoRa Wireless module with frequency hopping using an LoRa modulation. It operates
on the 902-928 MHz band and, therefore, is within U.S. FCC part 15.247 standard.
Modular installation instruction
RFM97C Integrates high-speed GPIO and peripheral interface. Please pay attention to the installation direction
(pin direction).
If the application requires the disconnection of VDD from the RFM97C, despite of the extremely low Sleep
Mode current, the user should wait for 10 ms from of the end of the POR cycle before commencing
communications over the SPI bus. Pin 7 (NRESET) should be left floating during the POR sequence.
Trace antenna designs
Not Applicable
RF exposure considerations
To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and operated
with minimum distance between 20cm the radiator your body: Use only the supplied antenna.
Antennas
The RFM97C is an LoRa Wireless module beams signals and communicates with its antenna, which is Reverse
SMA interface Rubber Bar antenna andSpring antenna . The both Antenna gain is 2.15dBi
LABEL OF THE END PRODUCT
The final end product must be labeled in a visible area with the following " Contains FCC ID: 2ASEORFM97C.
If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be
available on the label: This device complies with Part 15 of FCC rules. Operation is subject to the following two
conditions:
(1) this device may not cause harmful interference and
(2) this device must accept any interference received, including interference that may cause undesired operation.
Additional testing,
Part 15 Subpart B disclaimer
The module without unintentional-radiator digital circuit, so the module does not required an evaluation by FCC
Part 15 Subpart B. The host should be evaluated by the FCC Subpart B.
Information on test modes and additional testing requirements
Data transfer module demo board can control the EUT work in RF test mode at specified test channel.