Standard and Extended Post-Installation Verification
Prior to installing a wireless system the site will have to be assessed relative to the physical mounting of equipment, cable run locations, and overall aesthetics. This is where our physical site assessment and documentation services come into play. We make sure that when the installation team arrives with the ladders and screwdrivers that they have all the information they need to get the job done correctly and in a timely manner.
After installation an on-site verification of proper signal coverage is performed to confirm that the wireless network is working in accordance with the design specifications. A standard post-installation verification provides an assurance of correct coverage while an extended verification documents signal coverage levels both above and below the target design specification.
Confirmation of Correct System Operation
Post-Installation Verification confirms that the wireless LAN system is operational. An on-site walk-through is performed during which time signal strength and noise measurements are made.
A graphic signal coverage map (“heat map”) is created showing the entire wireless LAN coverage area. This confirms that the intended signal strength is present in all locations and that no “dead spots” or weak coverage areas exist.
During the site walk-through a series of signal strength graphs are produced showing signal variations from one area to another within the site.
Tables showing the visible SSIDs and client devices are compiled for each area of the site so that signal levels from individual access points can be assessed and confirmed.
RF Spectrum Analysis Sweep
Using an RF spectrum analyzer, a sweep is performed through the site to confirm that the spectral signature of the transmitters is not being distorted by environmental noise or interference.
One important caveat related to this standard post-installation is that individual spot measurements are not provided. Measurement is performed while walking through the site (or driving through an outdoor area). The results confirm proper system operation but do not specifically differentiate between variances from one specific room or area and another.
Verification that Design Targets Have Been Met
The RSSI (dBm) signal power levels specified for the system are compared to the actual measurements obtained during the on-site verification walk-through. If any discrepancies are noted they are called out in the verification report and if any significant problems are identified they are explored in more detail. Problem mitigation suggestions are provided in the delivered report.
Connect EZ Basic or Expanded Spectrum Analysis
This service is included when Post-Installation Verification requires verification of the levels and locations of environmental noise and interference in addition to the confirmation of proper Wi-Fi wireless signal strength and connectivity. The Basic Spectrum Analysis service isolates and describes problems or concerns while the Expanded Spectrum Analysis fully documents the spectrum throughout the entire site.
Real-Time Application Throughput Testing
To confirm usability a real-time data throughput and performance test is performed from one or more locations throughout the site. Using performance testing software, the on-site engineer establishes a bi-directional, multi-session data transfer between the wireless and wired network. These tests are performed using client and server hardware that’s provided by the on-site engineer. The results show the actual data throughput across the wireless network.
Gap Analysis and Remediation Modeling or Planning
In addition to the documented results for signal coverage, Connect802 can develop a detailed set of remediation plans. These plans are based on the signal measurement "heat maps" created from the actual on-site measurements. New access points are added to the design as required or existing access points are moved and the resulting predicted coverage is presented in the report with complete predicted "heat map" coverage models showing how the remediation work will correct the problems. Remediation Modeling is based on a 3-dimensional building model created when a design is based on a Connect802 Connect EZ Predictive RF CAD Design and Remediation Planning is based solely on real-world measured results obtained during the on-site, Post-Installation Verification work.