Please explain in the area below why an STA is necessary:
Teligent is in the process of testing a new wireless point-to-multipoint technology from Hughes Network Systems. Because the point-to-multipoint system is part of a much larger end-to-end network (including ATM switches, TDM switches, microwave backhaul, etc.), the entire network will need to be tested to make sure that the Hughes system is working properly. This includes operation with OC3 microwave links which provide the backhaul connection between the multipoint nodes and the class 5 voice switch located in the central office.
Two nodes will be used in the test plan. Each node requires a separate microwave backhaul link connection to the Teligent central office at 1120 Vermont Ave. The two temporary microwave links operating under the STA will not be carrying commercial traffic, but instead will transport test traffic used to verify the end-to-end integrity of voice and data signals carried across the network.
1. The first node (1050 Connecticut) will have a number of remote access sites that will be connected to the node via 24 GHz point-to-multipoint links using Teligent's DEMS licenses. The point-to-multipoint equipment will be from Hughes. The node will need to be connected back to the TCO at 1120 Vermont via the proposed backhaul link using 23 GHz common carrier frequencies.
2. The second node (811 Vermont Ave) will also have a number of remote access sites that will be connected to the node via 24 GHz point-to-multipoint links using Teligent's DEMS licenses. The point-to-mulipoint equipment will be from Hughes. The node will need to be connected back to the TCO at 1120 Vermont via the proposed backhaul link using 23 GHz common carrier frequencies.
Two test nodes are needed to adequately test a typical Teligent network configuration and enable an evaluation of the RF performance of the point to multipoint equipment using a large number of links.
The two backhaul 23 GHz links will enable connecting the test nodes back to the central office to study the end-to-end performance of this network configuration. The test will last for 3 to 6 months. Frequencies in the 23 GHz common carrier band have been selected for the backhaul links based on commercial equipment availability which will facilitate rapid deployment of the test network.
Successful completion of this test will enable Teligent to deploy the Hughes point-to-multipoint equipment in many different markets across the country and significantly increase the reach and efficiency of Teligent's wireless network to competitively serve more customers using this technology.
STA applications were originally filed for this purpose on July 7, 2000. The applications originally requested operations beginning August 1, 2000. Due to the system failure affecting the experimental licensing branch's website, however, these applications were lost. File numbers for the original three applications were 0250-EX-ST-2000, 0251-EX-ST-2000, 0252-EX-ST-2000.
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