Can SSB provide more usable channels in the land mobile service?

Based on the assumptions made for system requirements and limited geographical separation of base stations, it has been shown that Sliver Band FM (SBFM± 2.5 Kc system deviation) can provide about the same degree of spectrum utilization as Single Sideband (SSB). Frequency spacing or required bandwidth is the main factor affecting spectrum utilization to be discussed. Required frequency spacing is controlled by equipment characteristics and geographic separation of stations. FM systems can be spaced closer together due to the modulation and noise characteristics of FM transmitters as compared to SSB transmitters.