Companies depend on reliable, scalable and affordable solutions so that they can focus their full energy on the core business, not on solving IT issues. As a critical component of the wireless deployment, the Synditech professional wireless site survey provides a comprehensive overview of the wireless networks which is necessary to best serve the users and their demanding applications.
By leveraging the latest wireless mapping technology, tools and techniques, Synditech is able to provide you with detailed information – such as Access Points (APs) and channel selection, throughput requirements, interfering sources, dead spots, potential roaming behavior, transmit power levels and locations – which are required to deliver optimum performance.
Professional Site Surveys Include the Following:
- Detect, measure and record the presence of interference from other radio frequency devices
- Recommend the location of access points, antennas and other wireless devices
- Measure or calculate the expected data rates in the deployed areas
- Check for wave reflection, hidden nodes, dead spots
- Support of industry standards IEEE 802.11a/b/g/n/ac networks
- Photographs of the location of AP’s
- A detailed report containing: The information gathered above
Types of Surveys Provided:
Passive surveys are surveys that are performed with a listen-only mode. The survey client never associates to the access point (AP). Such surveys can be helpful when you look for rogue devices or you want a good gauge of downlink RF coverage from the infrastructure devices.
These can be accomplished with a passive survey:
Locate RF trouble zones quickly
Validate final RF setting
Perform initial surveys
The most significant loss of information with passive surveys is uplink information, Physical (PHY) rate boundaries and retransmission. PHY rates are generally based on RF signal and noise levels. A passive survey only reports signal propagation for beacons measured by particular clients. PHY rates can only be measured by actual data that is sent to and from an AP.
Active surveys are performed with the survey client associated to the APs used throughout the survey. When a client is associated, it performs all the tasks a typical 802.11 client performs, which includes rate shifting data rates as the RF condition changes and performs retransmissions. Active surveys are commonly used for new WLAN deployments because they provide the most details upon which to base a design.
There are two main methods used in active surveys:
Basic Service Set Identifier (BSSID) Method: This method locks a client into an AP’s radio MAC address and prevents the client from roaming.
Service Set Identifier (SSID) Method: This is more commonly used for post-deployment scenarios and used to survey multiple APs. It enables the survey client to associate to an SSID where the client roams between multiple APs.
Predictive surveys are performed with a software program. The program uses the information about the coverage area to perform AP placements based on RF algorithms. These surveys are typically void of any type of field measurements.
The best times to incorporate a predictive survey include:
When the deployment environment has not yet been built.
In order to obtain a budgetary environment for WLAN-related hardware.
When roaming requirements are less stringent.