Nikon Z9 Mirrorless Camera - Manual (Page 903)

903 Bluetooth and Wi-Fi (Wireless LAN)
FCC/ISED RF Exposure Statement
The available scientific evidence does not show that any health problems are
associated with using low power wireless devices. There is no proof,
however, that these low power wireless devices are absolutely safe. Low
power Wireless devices emit low levels of radio frequency energy (RF) in the
microwave range while being used. Whereas high levels of RF can produce
health effects (by heating tissue), exposure of low-level RF that does not
produce heating effects causes no known adverse health effects. Many
studies of low-level RF exposures have not found any biological effects.
Some studies have suggested that some biological effects might occur, but
such findings have not been confirmed by additional research. This product
has been tested and found to comply with FCC/ISED radiation exposure
limits set forth for an uncontrolled environment and meets the FCC radio
frequency (RF) Exposure Guidelines and RSS-102 of the ISED radio frequency
(RF) Exposure rules. Please refer to the SAR test report that was uploaded to
FCC website.
Compliance with RSS-247 Issue 2 §6.4
Data transmission is always initiated by software, which is the passed down
through the MAC, through the digital and analog baseband, and finally to
the RF chip. Several special packets are initiated by the MAC. These are the
only ways the digital baseband portion will turn on the RF transmitter, which
it then turns off at the end of the packet. Therefore, the transmitter will be on
only while one of the aforementioned packets is being transmitted. In other
words, this device automatically discontinue transmission in case of either
absence of information to transmit or operational failure.
Notice for Customers in Canada
For indoor use only (5150-5350MHz).