Users Manual

2.10 Additional testing, Part 15 subpart B disclaimer
The final host / module combination needs to be evaluated against the FCC Part 15B criteria
for unintentional radiators in order to be properly authorized for operation as a Part 15 digital
device.
The host integrator installing this module into their product must ensure that the final
composite product complies with the FCC requirements by a technical assessment or
evaluation to the FCC rules, including the transmitter operation and should refer to guidance
in KDB 996369.
Frequency spectrum to be investigated
For host products with certified modular transmitter, the frequency range of investigation of
the composite system is specified by rule in Sections 15.33(a)(1) through (a)(3), or the range
applicable to the digital device, as shown in Section 15.33(b)(1), whichever is the higher
frequency range of investigation.
Operating the host product
When testing the host product, all the transmitters must be operating. The transmitters can
be enabled by using publicly-available drivers and turned on, so the transmitters are active.
In certain conditions it might be appropriate to use a technology-specific call box (test set)
where accessory 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 radiator circuitry is enabled. Testing laboratories may need to add attenuation
or filters depending on the signal strength of any active beacons (if applicable) from the
enabled radio(s). See ANSI C63.4, ANSI C63.10 and ANSI C63.26 for further general
testing details.
The product under test is placed into a normal WiFi station mode and connected to a WiFi
router, as per the normal intended use of the product (for example, transferring data).
FCC Statement
Any Changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operati on is subject to the following
two conditions:
(1) This device may not cause harmful interference, and
(2) This de vice must accept any interference received, includi ng interference that may cause
undesired operation.