|
|
Sweep Testing
Sweep Testing in the Wireless Communication Industry
encompasses a variety of tests using a linear RF Generator/Analyzer
"sweeping" across a specified set of frequencies. These tests can
determine the performance of individual components in an Antenna System, as well as the amalgamation of those
components for overall system performance. Typically, Wireless Carriers require
a minimum standard for Sweep Tests including: Coaxial Return Loss, Coaxial
Insertion Loss, Distance to Fault (a.k.a. Fault Location), and System Return
Loss. As Antenna Systems become more complex, some in-line components require
special attention when testing, requiring advanced knowledge of not only their
function, but how to setup the test equipment to insure accurate results
without damaging either the test equipment, nor the device(s) under test. Aslan
maintains a variety of test sets to perform these measurements, being that no
matter what you may have heard, each test set has its strengths and weaknesses.
The results of these tests will determine any performance
weaknesses, flaws or failures of the components within the system, or their
installation. When problems do occur, Aslan can quickly determine the cause and
provide solutions, saving both time and expense for our clients.
This is the service that Aslan was built upon, and is
unrivaled in experience and proficiency throughout the industry. Performed by
certified technicians. |
Ground Resistance Testing
As with any electrically powered system, Wireless
Communication Sites require proper grounding. However, because of their
function and exposure, Wireless Sites are rightfully held to a stricter
standard than that of common electrical systems. A "clean",
independent grounding system is crucial to the performance and protection of
wireless equipment. In many locations these standards are relatively ea sy to meet, conversely in others, such as in metropolitan areas, or in groupings of
installations, this can be extremely challenging. Often, the difficulty can be
in choosing the correct test equipment, and techniques for achieving a proper
and accurate measurement.
Aslan's Technicians are trained in virtually all
environments and situations to select the exact equipment and testing method
necessary for the best results. Be it Fall of Potential, Two Point, or Clamp-On
in the most restricted of areas, Aslan will obtain the most accurate
measurements achievable. |
Passive Intermodulation "PIM" Testing
Passive intermodulation is generated whenever more than one
frequency encounters a non-linear electrical junction or material. The
resulting creation of undesired signals, mathematically related to the original frequencies, can
result in decreased system capacity and/or degraded call quality.
This is a relatively new concern in the United States and is
frankly a bit controversial as a "necessary" step in implementation
or troubleshooting Wireless Sites. One of the main reasons is: the higher-end
Network Analyzers utilized for Sweeping (that Aslan has been using since 1995) are
capable of a form of Intermodulation Testing. Aslan's position is: if a sweep
technician is capable and knowledgeable in their duties, the need for PIM
testing is all but eliminated.
Nevertheless, Aslan Technicians have been factory trained
and are experts in the use of the most prevalent equipment employed to perform
this task.
ASLAN TECHNOLOGIES, INC. DOES
NOT CURRENTLY POSSESS EQUIPMENT DEDICATED TO EXECUTING PIM TESTS. Arrangements
must be made with the Carrier, or the installers to acquire the necessary test sets
to complete this activity to Carrier Specifications. |
RF Analyses and Optimization
CDMA, TDMA-GSM, UMTS/WCDMA, LTE, iDEN, and countless other wirelesses
technologies are coexisting in the same space continuously, and are growing in
saturation. Like so many cars sharing the same roadway, it is becoming
increasing difficult to avoid "bumping into" one another. Its not
enough to maintain the hardware that drives the network, but also measure the
threats over the airwaves.
Aslan Technologies, Inc. is prepared with knowledge,
experience, and the best equipment necessary to locate both hardware problems
within the radio system, and over-the-air issues. With the increased
sensitivity of the new technologies that continually advance the industry, in
addition to the growing number of mobile units, it has become crucial to find
the smallest levels of interference and causes of intermittent failures more than
ever before.
|
|
|
|
 |
 |
 |
 |
|
