- Simplify your measurements of cellular, PCS, and other spread spectrum transmitters based on EIA.TIA IS-95, -97, -98, and J-STD-008 with the HP 85725C. Frequency- and time-domain measurements are provided. The new C version of this personality adds the adjacent channel power ratio (ACPR) measurement, as well as tuning plans for Japan and Korea. The HP 85725C is designed with a gret amount of flexibility, including on-screen help messages, enabling measurements to be easily configured to meet your special needs.