04-27-1999 Council Agenda - Laserfiche WebLink

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EXHIBIT A Memo To: Ken Nielsen From:Dan Weisenburger Date: 03/25/99 Re: Little Canada — U.S. West Wireless — Citgo Antenna Location At the request of the planning commission for the city of Little Canada I have reviewed several potential sites for the location of MIN242. The criteria for site selection is that a site be geographically located and constructed to provide good service levels for our customers. At the same time, care must be given to prevent interference to our existing service in other areas. Our philosphy of antenna placement differs from cellular providers in that a tall antenna can be self - defeating. At the frequencies of PCS a tall structure enhances the probability of tropospheric ducting, resulting in uncontrolled interference, more so than cellular frequencies because of the much shorter wave - length. I have included maps of drive tests we have performed. These tests were done with a test transmitter operating on our test channel at the maximum permissible power and at heights which were practical for the location being tested. The maps show colors representing signal strength. The Blue indicates areas where we would have coverage inside most conventional buildings. The Green indicates areas where frame constructed buildings, such as homes would continue to have coverage. The Yellow shows areas that provide good service to customers in their vehicles. The Red is for areas that work best with an outside antenna on the car, or on foot with the antenna fully extended. Lastly the gray areas were evaluated but failed to provide a useable signal. Gray areas equate to dropped calls. 1. Rice St. and Hwy 36. This test was performed at a height of 80 feet. The area that needs coverage includes an area bounded by Rice St, 1-694, I -35E and Highway 36. This area is presently a poor coverage area with numerous trouble reports of dropped calls and "going into Roam ". There are two towers just east of Rice Street that we have tested. Our testing indicates that coverage from these towers does not extend north of South Owasso Blvd. along Rice Street I -35E is not covered north of Little Canada Rd. Referring to Map A, 1 have circled the areas of concern from this drive test. This location does not meet the service levels required for our customers. 2. City of Little Canada Water Tank, located behind City Hall. The height for this test was 75 feet. This location was tested and found to be unacceptable at this time. Page 50