NINA-W1 series - System integration manual
UBX-17005730 - R15
Approvals
Page 46 of 54
C1 - Public
5.2.3
Antenna requirements
In addition to the general requirement to use only authorized antennas, the u-blox grant also requires
a separation distance of at least 20 cm from the antenna to all persons. Also, the antenna must not
be co-located with any other antenna or transmitter (simultaneous transmission) as well. If this
cannot be met, a Permissive Change as described below must be made to the grant.
5.2.3.1
Separation distance
If the required separation distance of 20 cm cannot be fulfilled, a SAR evaluation must be performed.
This consists of additional calculations and/or measurements. The result must be added to the grant
file as a Class II Permissive Change.
5.2.3.2
Co-location (simultaneous transmission)
If the module is to be co-located with another transmitter, additional measurements for simultaneous
transmission is required. The results must be added to the grant file as a Class II Permissive Change.
5.2.3.3
Adding a new antenna for authorization
If the authorized antennas and/or antenna trace design cannot be used, the new antenna and/or
antenna trace designs must be added to the grant file. This is done by a Class I Permissive Change or
a Class II Permissive Change, depending on the specific antenna and antenna trace design.
•
Antennas of the same type and with less or same gain as an already approved antenna can be
added under a Class I Permissive Change.
•
Antenna trace designs deviating from the u-blox reference design and new antenna types are
added under a Class II Permissive Change.
⚠
Integrators who want to refer to the u-blox FCC ID / IC certification ID should
support team to discuss the Permissive Change Process. Class II Permissive Changes will be
subject to NRE costs.
