Specifications

6.11.1. Testing of the host product with all the transmitters installed – referred to as the

composite investigation test- is recommended, to verify that the host product meets

all the applicable FCC rules. The radio spectrum is to be investigated with all the

transmitters in the final host product functioning to determine that no emissions

exceed the highest limit permitted for any one individual transmitter as required by

Section 2.947(f). The host manufacturer is responsible to ensure that when their

product operates as intended it does not have any emissions present that are out of

compliance that were not present when the transmitters were tested individually.

6.11.2. The following provides general guidance and suggestions to host product manufacturers

when installing a certified modular transmitter, on how they may verify the intentional

radiator (transmitter) compliance of the composite-system end product:

6.11.2.1. If 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.

6.11.2.2. 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 (i.e. enclosure). This investigation is especially

important when integrating multiple modular transmitters where the certification

is based on testing each of them in a stand-alone configuration. It is important

to note that host product manufacturers should not assume that because the

modular transmitter is certified that they do not have any responsibility for final

product compliance.

6.11.2.3. If the investigation indicates a compliance concern the host product

manufacturer is obligated to mitigate the issue. Host products using a modular

transmitter are subject to all the applicable individual technical rules as well as to

the general conditions of operation 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 has been corrected.

6.11.3. The modular transmitter is only FCC authorized for the specific rule parts listed in

Section 6.1, and that the host product manufacturer is responsible for compliance to any

other FCC rules that apply to the host not covered by the modular transmitter grant of

certification.

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