Cellular One's new transmission tower, just northeast of 1400 N. Main and the DAvis Bowling Lanes, may be the highest structure in Layton. Defined as a "cell site" by the company, the 160-foot tower will upgrade service to cellular phone customers between Layton and Farmington. Doug Weist, system development manager, said the tower is about 60 fee higher thatn the average for most areas and will be operational within a month. It is designed to close broadcasting gaps in the area caused by uneven terrain.