User's Manual
4
FCC antenna compliance
Since professional installation is required, standard RF connectors are used. Adapters or
custom coaxial cables may be required to connect the radio output connector to the
desired antenna.
Any antenna from a reputable manufacturer with desired bandwidth, gain/pattern
coverage, and have an input surge impedance of approximately 50 ohms can be used.
Maximum antenna gain of 11dBi in both the 757-758MHz and the 787-788 MHz bands.
Exposure Compliance
FCC ID: PEJ-XKJS7
It is the responsibility of the licensee or user to guarantee compliance with the
appropriate MPE regulations when operating this device in a way other than described
herein. The installer of this equipment must ensure the antenna is located or oriented
such that it does not emit an RF field in excess guidelines as posted in the 47 CFR
Bulletin 65/47CFR § 1.1310 of the Federal Communications Commission, or the Council
of European Union as appropriate.
The XetaWave XETA7 uses a low power radio frequency transmitter. The concentrated
energy from an antenna may also pose a health hazard in the near field. People should
not be near the antenna when the radio link is operating as general practice and
maintain a safe distance as calculated below.
The following calculations are based off the Maximum Permissible Exposure
requirements as outlined by the FCC.
The MPED (Maximum Permissible Exposure Distance) is calculated based on the limits
for a General Population/Uncontrolled Exposure in the 300-1500 MHz frequency band
using the stated MPE power density limit of F/1500 mW/cm
2
for General population
/Uncontrolled environment. To calculate safe distance:
Equation 2:
2
/(4
)(
cmmWmtExposureLi
nAntennaGaiDutyCyclemWowerConductedP
MPED
Where: MPED is Maximum Permissible Exposure Distance or safe distance in cm
All quantities are calculated in linear or numeric quantities.
Duty cycle is set using packet sizes for master and slave. Packet sizes are set in the radio
Network Configuration Menu. At Power up and with no data transmitting, the radios