82 Tempest®900 4-Channel Wireless Intercom System
Radio Compliance
This unit has been tested and found to comply with the limits for a class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protecon against harmful interference when the equipment is operated in
a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instrucon manual, may cause harmful interference to radio communicaons. Operaon of this
equipment in a residenal area is likely to cause harmful interference in which case the user will be required to correct the in-
terference at his own expense. Commensurate with EIRP limits specied in FCC Rules 15.247b, this device may not be used with
antennas that exceed 9dB of gain in mul-point applicaons.
Contains Transmier Module FCCID: HSW-934
Important FCC and Safety Informaon
I. Digital Device Statement
A. Tempest BaseStaons and wireless BeltStaons have been tested and found to comply with the limits for Class B digital
devices, pursuant to Part 15 of the Rules and Regulaons of the U.S. Federal Communicaons Commission (the FCC) . Tempest
products are marketed as Class A digital devices. These limits are designed to provide reasonable protecon against harmful
interference when the equipment is operated in a commercial environment.
B. This equipment generates, uses, and can radiate radio-frequency energy. If not installed and used in accordance with all
instrucons, it may cause harmful interference to radio communicaons.
C. Operaon of this equipment in a residenal area is likely to cause harmful interference, in which case the user will be re-
quired to correct the interference at his own expense.
II. Intenonal Radiator Statement
A. Tempest BaseStaons and wireless BeltStaons each employ a modular, low-power radio transceiver module that operates
pursuant to Part 15 of the FCC’s Rules. The module’s FCC Idener is HSW-934.
B. Operaon is subject to the following condions:
1. A Tempest system may not cause harmful interference to other users of the radio spectrum.
2. Upon nocaon by a representave of the FCC that a Tempest system is causing harmful interference, use of the system
must be suspended. Operaon must not resume unl the condion causing the harmful interference has been corrected.
and
3. A Tempest system must accept any interference received, including interference that may cause undesired operaon.
C. Tempest Wireless BeltStaons contain an internal antenna that is not user replaceable Tempest BaseStaons must be used
only with approved antennas either the standard 4” Rubber Whip Antenna supplied with every Tempest BaseStaons, with
the 9bBi Direconal Corner Reector Antenna that is available as an opon or another approved antenna. Use of any non-ap-
proved antenna, or any modicaon to any part of a Tempest unit, violates the Tempest System’s warranty, and also constutes
a violaon of the FCC’s Rules and Regulaons and of § 302 of the Communicaons Act of 1934, as amended.
D. To reduce potenal radio interference to other users, the antenna type and its gain should be so chosen that the equivalent
isotropically radiated power (e.i.r.p.) is not more than that permied for successful communicaon.
III. RF-Exposure Statement
A. The FCC has adopted limits on the exposure to radio-frequency energy from devices such as the Tempest system. The FCC
adopted these limits by drawing upon the eorts of independent scienc organizaons that have engaged in periodic evalu-
aons of the scienc literature. The FCC’s standards are intended to assure the safety of all persons, regardless of age or
health.
B. Tempest has been designed and manufactured to comply with the FCC’s exposure limits. When used with approved anten-
nas, and when used in accordance with all instrucons, the Tempest system complies with those exposure limits.
C. Tempest BeltStaons have been designed to be worn and used in close proximity to the human body.... what the FCC calls a
“portable” use. The BeltStaon unit complies with FCC exposure limits for portable use.
D. To ensure compliance with FCC exposure limits, no person must come closer than 26 cm (ten inches) from either the stan-
dard 4” Rubber Whip Antenna, the oponal Direconal Corner Reector Antenna, or other approved antenna whichever is
used with the Tempest BaseStaon.
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