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antenna gain is 2.0dBi.   

 

Label and compliance information When the module is installed in the host 

device, the FCC ID label must be visible through a window on the final device 

or it must be visible when an access panel, door or cover is easily re

moved. If 

not, a second label must be placed on the outside of the final device that 

contains the following text: Contains Transmitter Module   

FCC ID: Z4T-XIAONRF52840, the FCC ID can be used only when all FCC ID 

compliance requirements are met. 

 

Information on test modes and additional testing requirements 

The modular transmitter has been fully tested by the module grantee on the 

required number of channels, modulation types, and modes, it should not be 

necessary for the host installer to re

test all the available transmitter modes or 

settings. It is recommended that the host product manufacturer, installing the 

modular transmitter, perform some investigative measurements to confirm that 

the resulting composite system does not exceed the spurious emissions limits 

or band edge limits (e.g., where a different antenna may be causing additional 

emissions).   

The testing should check for emissions that may occur due to the intermixing 

of emissions with the  other transmitters, digital circuitry, or due to physical 

properties of the host product (enclosure). 

Содержание XIAO nRF52840 Sense

Страница 1: ...anagement because of the BQ25101 chip In addition it carries two extra onboard sensors One of them is a digital microphone created through Pulse Density Modulation PDM module on the nRF52840 chip It can receive audio data in real time which allows it can be used for audio recognition The board not only receives audio data but also can speak through the MSM261D3526H1CPM microphone The other one is ...

Страница 2: ...ammed by Arduino Micro Python Circuit Python or other program languages Features Powerful wireless capabilities Bluetooth 5 0 with onboard antenna Powerful CPU Nordic nRF52840 ARM Cortex M4 32 bit processor with FPU 64 MHz Ultra Low Power Standby power consumption is less than 5μA Battery charging chip Supports lithium battery charge and discharge management Onboard 2 MB flash Onboard PDM micropho...

Страница 3: ...15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a part...

Страница 4: ...adiator your body OEM Integrators Installation Manual List of applicable FCC rules This module has been tested and found to comply with part 15 247 requirements for Modular Approval Summarize the specific operational use conditions This module can be applied in household electrical appliances as well as TV and IP camera The input voltage to the module should be nominally 5VDC typical value 5VDC an...

Страница 5: ...ts The modular transmitter has been fully tested by the module grantee on the required number of channels modulation types and modes it should not be necessary for the host installer to re test all the available transmitter modes or settings It is recommended that the host product manufacturer installing the modular transmitter perform some investigative measurements to confirm that the resulting ...

Страница 6: ...ration in Sections 15 5 15 15 and 15 29 to not cause interference The operator of the host product will be obligated to stop operating the device until the interference have been corrected Additional testing Part 15 Subpart B disclaimer The final host module combination need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operati...

Страница 7: ...ry devices or drivers are not available When testing for emissions from the unintentional radiator the transmitter shall be placed in the receive mode or idle mode if possible If receive mode only is not possible then the radio shall be passive preferred and or active scanning In these cases this would need to enable activity on the communication BUS i e PCIe SDIO USB to ensure the unintentional r...

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