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Fundamentals
equipment does cause harmful interference
This phone is designed and manufactured
to radio or television reception, which can
not to exceed the emission limits for
be determined by turning the equipment
exposure to radio frequency (RF) energy set
off and on, the user is encouraged to try to
by the Federal Communications Commission
correct the interference by one or more of
of the U.S. Government:
the following measures:
The exposure standard for wireless mobile
• Reorient or relocate the receiving
phones employs a unit of measurement
antenna.
known as the Specific Absorption Rate,
or SAR. The SAR limit set by the FCC is
• Increase the separation between the
1.6 W/kg.* Tests for SAR are conducted
equipment and receiver.
using standard operating positions accepted
• Connect the equipment into an outlet on
by the FCC with the phone transmitting
a circuit different from that to which the
at its highest certified power level in all
receiver is connected.
tested frequency bands. Although the SAR
• Consult the dealer or an experienced
is determined at the highest certified power
radio/TV technician for help.
level, the actual SAR level of the phone
while operating can be well below the
Changes or modifications not expressly
maximum value. This is because the phone
approved by the party responsible for
is designed to operate at multiple power
compliance could void the user's authority to
levels so as to use only the power required
operate the equipment.
to reach the network. In general, the closer
The antenna(s) used for this transmitter must
you are to a wireless base station antenna,
not be co-located or operating in conjunction
the lower the power output.
with any other antenna or transmitter.
The highest SAR value for the model phone
Health and Safety Information
as reported to the FCC when tested for use
at the ear is 0.805 W/kg and when worn on
Radio Frequency (RF) Energy
the body, as described in this user guide,
This model phone meets the government's
is 1.420 W/kg. (Body-worn measurements
requirements for exposure to radio waves.
* In the United States and Canada, the SAR limit for mobile phones used by the public is 1.6 watts/kg (W/kg)
averaged over one gram of tissue. The standard incorporates a substantial margin of safety to give additional
protection for the public and to account for any variations in measurements.
26
differ among phone models, depending
Hearing Aid Compatibility with
upon available enhancements and FCC
Mobile Phones
requirements.)
When some mobile phones are used near
While there may be differences between the
some hearing devices (hearing aids and
SAR levels of individual ZTE R225 phones
cochlear implants) users may detect a
and at various positions, they all meet the
buzzing, humming, or whining noise. Some
government requirement.
hearing devices are more immune than
others to this interference noise, and phones
The FCC has granted an Equipment
also vary in the amount of interference they
Authorization for this model phone with
generate in such conditions.
all reported SAR levels evaluated as in
compliance with the FCC RF exposure
The wireless telephone industry has
guidelines. SAR information on this model
developed ratings for some of their mobile
phone is on file with the FCC and can be
phones, to assist hearing device users in
found under the Display Grant section of
finding phones that may be compatible with
http://www.fcc.gov/oet/fccid after searching
their hearing devices. Not all phones have
on FCC ID: Q78-GR225.
been rated. Phones that are rated have the
rating on their box or a label on the box.
For body-worn operation, this phone has
been tested and meets the FCC RF exposure
The ratings are not guarantees of
guidelines for use with an accessory that
satisfactory results. Results will vary
contains no metal and that positions the
depending on the user's hearing device and
hearing loss. If your hearing device happens
handset a minimum of 1.5 cm from the body.
Use of other enhancements may not ensure
to be vulnerable to interference, you may not
compliance with FCC RF exposure guidelines.
be able to use a rated phone successfully.
If you do not use a body-worn accessory
Trying out the phone with your hearing
and are not holding the phone at the ear
device is the best way to evaluate it for your
level, position the handset a minimum of
personal needs.
1.5 cm from your body when the phone is
M-Ratings: Phones rated M3 or M4 meet
switched on.
FCC requirements and are likely to generate
less interference to hearing devices than
phones that are not labeled. M4 is the
better/higher of the two ratings.
Fundamentals
27
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