The HMMA is a high quality SAW filtered frequency agile modulator designed to meet high CATV performance standards. The small sized modulator is 1 inch wide for an easy fit into 1 slot of the HM Modular System. All channels, CATV 2-135 and UHF 2-69 are selected with convenient push-button switches. Low out of band noise levels allow for use in adjacent channel head-ends. The simple operation of this agile modulator makes the HMMA an excellent choice where versatility, performance and small size are required.