Agenda Packets - 2007/04/02 (2) - Laserfiche WebLink

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2 3.0 Testing procedures. 3.1 Acceptance test procedure. With or without an in-building radio system, it will be the building owner's responsibility to have the regional radio system performance tested to ensure that two-way coverage on each floor of the building is a minimum of 90% of the total floor area and the critical areas designated. 3.1.1 Talk-in From the Regional Radio System Coverage Testing The talk-in coverage testing process shall be the same for buildings with and without in-building amplification systems. During test measuring, the center of the test equipment receive antenna shall be between 30 and 36 inches above the floor. On each floor of a building to be tested, the floor space, except for designated critical areas, shall be divided into square or rectangular areas of approximately the same size and shape. Each floor shall have at least ten grid areas; however, the maximum size of grid areas shall not exceed 2,500 square feet. In buildings with support columns laid out in a grid, the corners of each grid may be arranged at the columns for ease in identifying grid corners while testing is in progress. In buildings, such as a warehouse, with large open areas, tests shall be conducted near the center of each grid although the exact center may not be easily accessible due to the location of large machinery, storage racks, and the like. In buildings with divided office spaces, with or without floor to ceiling partitions, tests shall be conducted in an office at or near the center of a grid. In buildings with a large open area and an attached two-story, split-level office or other area, the lower level of the two-story, split-level attachment shall be considered as an extension of the large open area. In multi-story buildings and parking ramps, testing shall begin at the lowest level, including any sub-grade level(s), and continue up one floor at a time. In -building amplification may only be required on the lowest level or levels of a multi-story building or parking ramp. Average radio signal field strength shall be measured and recorded in each grid and in each designated critical area defined above. Average field strength may be obtained through use of an instantaneous measuring instrument and a computer that samples the actual field strength at very short time intervals and averages the sample values. As an alternative, a field strength measuring instrument with an analog or digital readout of average field strength may also be used. Measurements shall be made while the measuring instrument is moved over a distance of four to ten feet. If the average field strength varies over the measurement path, the lowest (most negative) value shall be recorded. The test