User's Manual

Exalt Installation and Management Guide
ExtendAir (TDD) Series Digital Microwave Radios
203591-010 3
2012-09-04
The ExtendAir (TDD) Series radios require a clear line-of-sight and proper path clearance to achieve a
high-performance, reliable connection. Perform professional path engineering and site planning before
installing this equipment.
The primary focus of this document is the installation and maintenance of the digital microwave radio,
and assumes that path engineering and site planning has already been performed.
The 50xx family ExtendAir (TDD) Series radios utilize radio frequencies in the 5250 to 5875 MHz
range. In most countries these frequency bands are considered as ‘license-exempt’ or ‘unlicensed.’
This means that virtually any user may use these frequencies freely, without paying for access, or any
type of prenotification, post-notification or registration. As a result of this designation, users may also
move or change these systems at any time, with significant flexibility to the location, orientation and
configuration of the system. However, due also to this designation, there may be uncontrolled
interference from other similar devices that occupy this spectrum. In these cases, it is up to engineering
and maintenance personnel to design the system with existing and future interference sources in mind,
recognizing that there is a chance that the interference conditions could be very dynamic, and outages
may occur on the system as a result, and that, in some very rare cases, the system may cause
interference into another system and may be required to be disengaged or modified/re-oriented to
eliminate the interference.
If the spectrum in your country is designated as ‘license-exempt’ or similar, this does not infer that the
installer may configure the system in any manner at any location. In most cases, there are regulations,
or device-based conditions that limit the use of the device, such as maximum gain antenna, antenna
types and maximum output power, as well as, in some cases, application limits, limited geography of
use, and other unique regulations. The link design engineer and/or professional installer must
determine these limitations and engineer/install the system within the confines of all local regulations.
Also, it is required to examine any regulations that may apply to peripheral equipment, installation and
cabling of the system that may be regulated for human safety, electrical code, air-traffic control, and
other safety-related categories.
In certain countries, the spectrum for this product is NOT considered to be license-exempt. In these
cases, there may be additional regulatory requirements concerning the location, frequency, power,
orientation, configuration, and other aspects of the system, including, in some cases, a need for link
registration, coordination, and fees that may apply to the system usage. Please consult your local
regulatory organization(s) to determine usage requirements.
The 49xx family ExtendAir (TDD) Series radios utilize frequencies in the 4940–4990MHz range,
which is typically a licensed band reserved for use by Public Safety agencies and applications. The
40xx family ExtendAir (TDD) Series radios utilize frequencies in the 4400–4900 MHz range, which
are typically reserved for Government users.
In almost all cases, either for license-exempt or other designation, the product itself must be authorized
for use in your country. Either Exalt or Exalt’s agent must have applied for certification or
authorization to allow the sale and deployment of the system within the country. It is also possible that
only certain versions or configurations of the device are allowed within a particular country. Please
contact Exalt or your authorized Exalt representative for information pertaining to your country.
Note: It is the (professional) installer’s responsibility to ensure that the radio system is
implemented in a legal fashion. Exalt is not liable for any unsafe or illegal installations.