Exalt Installation and Management Guide
ExtendAir (TDD) Series Digital Microwave Radios
203591-004
99
2010-09-20
Regulatory Notices
49xx Models
The ExtendAir (TDD) 49xx models are licensed-band products operating within Part 90 of the FCC
regulations and RSS-111 of Industry Canada. These bands are specifically reserved for Public Safety
applications and related agencies, in accordance with these regulations.
Transmitter power reduction may be required, depending on transmission system gains and losses, in
accordance with instructions found in this appendix.
The transmitter power of the device must be reduced by 1 dB for every 1 dB that the antenna gain
exceeds 26 dBi (inclusive of transmission system losses).
United States Compliance
The ExtendAir (TDD) Series 50xx models operate under FCC Rule Parts 15.247 and/or 15.407 as a
license-exempt device. They may only be used as a point-to-point transmission device for fixed or
temporary-fixed (non-mobile) installations. The devices are subject to the following restrictions:
•
Do not use external amplifiers to boost the power or overcome transmission system losses, unless
the specific amplifier/cable/antenna combination has expressly been authorized by the FCC. The
output power must never 30 dBm.
•
Cross-border transmissions are expressly prohibited, except with written permission from both the
FCC and the governing body of the neighboring country (Cofetel for Mexico; Industry Canada for
Canada).
•
Use only parabolic dish antennas or directional flat-panel antennas. No other types of antennas
(omni-directional, yagi, and so on) are authorized. Parabolic dishes of either grid or solid type are
allowed. Maximum mid-band gain of each type of antenna certified is:
–
Parabolic dish: 37.9 dBi (6'/1.8m diameter)
–
Directional flat panel: 28 dBi (~2'/61cm square)
Federal Communications Commission (FCC), United States
The device is allowed to be used provided it does not cause interference to other devices. It is not
guaranteed to provide protection against interference from other electronic and radio devices.
The system has been tested and found to comply with the limits of a class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one of more of the following measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
•
Consult the dealer or an experienced radio/TV technician for help.
