FCC regulations require that a person knowledgeable in electronics and trained in the correct installation of this device
Professionally install this device.
Professional installer have a responsibility to comply with FCC part 15 rules on antenna limits and amplification.
Unauthorized modifications to the device could void the End-users authority to operate it.
This product has been certified with the following antennas, and may only be used with the same or less antenna gain.
Antenna Model Max. Gain
Dipole Antennas LSDP-9002D(B)
Dipole Antennas HW-920H-MSMA
Yagi Antennas
Two types of dipole antennas are applied when the GM-900M is used as a portable device.
And two types of dipole antennas should not be used in other places than the waist.
So the GM-900M was evaluated for body worn SAR condition and it is not a hand-held device.
One type of Yagi antenna is applied when the GM-900M is used as a base-station for fixed use.
In case of using Yagi antenna, this device should be used at least 20cm away from the human body
and requires controlled installation location by professional installer.
