Cost and Warranty:

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How it works: : : :

From our site to yours: A brief explanation of our wireless Internet service

Point to Multipoint: Radios at Work

For the customer, there are two radios involved with your Internet service. The access point radio (AP) at our location which broadcasts a signal to the subscriber unit (SU) at your location. The service is dependent upon the subscriber unit's ability to acquire a suitable signal from the access point to achieve Internet access.

In order to achieve a suitable signal three immediate concerns must be addressed:

1. line-of-sight

SerberNet Broadband system currently uses radio frequencies to transmit. These radio frequencies do require the radios to have line-of-sight in order to communicate. Line-of-sight is easily achieved from high points on homes or businesses. If trees, buildings, or other structures impede line-of-sight, it may not be possible to achieve connection with the current equipment.

2. Arc of Coverage

The AP radio has a 60 degree arc of coverage. In order to receive the signal from the AP, the subscriber must first be able to see the radio and second be in the coverage area of that radio. Most of SerberNet service areas are covered by multiple access point sites to accommodate as many future subscribers as possible.

3. Distance from Subscriber to Access Point

Range to the AP from the SU is very important in determining the equipment used in the service. We have found that under certain conditions the radios may achieve a greater range than 10 miles as stated by the manufacturer; however, these unique conditions should not be expected for all situations.

More on the Radio

You may have heard of the security concerns associated with wireless Internet access. These security issues are primarily connected to wireless home or business networks that use 802.11 open standard equipment to broadcast a signal inside a location. Do not confuse this type of network with the service SerberNet provides; our connection is secured through constant encryption.

Radio Security Features:

• Authentication:
  Only authenticated subscriber unit radios can communicate with the access point radio. Radios not authenticated by the access point radio will not gain access to the network.
• Proprietary Data Scrambling:
  Proprietary patterns of sequencing employed by the radio along with the combination of each data byte with one of 256 scrambling bytes ensures only authenticated radios can de-scramble communication.
• SMARTPolling:
  Dynamic Polling Protocol is a polling sequence that allocates dynamic time slots to given subscriber units. The sequence is random and therefore protected from outside invasion. The protocol also allows for the efficient division of bandwidth between subscriber units.
• Spread Spectrum :
  Spread Spectrum provides a small layer of protection due to the fact that no demodulator is currently available to interpret the pseudo noise code created by the modulation.

The above security features of the radio are by no means fault tolerant. but they do provide measures of security that you will not see in wireless LAN 802.11 hardware. Secure networks are better maintained through VPN and other packet encryption methods.

The Installation

Normal installations can take up to 2 hours. Installers will meet with customers to determine the placement of the radio and location of cabling. Additional cabling requested by customer can be run at an additional cost of time and equipment used. Keep in mind that the location you may want the equipment mounted at may not be the most suitable for achieving maximized service. As our installation numbers grow, so to does our experience with identifying possible obstacles in achieving the best service for our valued customers.

A normal installation involves the following:

1. Line-of-sight and maximized signal strength achieved (radio installed)
2. Ethernet cable installation from exterior of location to the interior network or computer connection
3. Additional cable runs if requested by the customer (additional charges will apply)

Customers will be provided additional network equipment upon request or configuration settings accordingly to complete the connectivity of their computer or LAN.

If you have questions not covered within the above sections, please feel free to contact us at:

Email: sales@serbernet.com
Toll Free: 1-877-777-3705 or
Telephone: 1-780-837-3705