Somebody from City of Milwaukee said this in a blog.
It is true we have to go digital and to get down to the required bandwith per talk path of 6.25kHz, digital is the only way at this time. As of today there is no one that we could locate offering a conventional analog system that meets the mandate. If you know of a company let us know. The reason you may have difficultly locating a company that offers it is due to the fact conversation over analog require a lot more bandwith to be understood. Our old system was 25kHz per talkpath. So as you can see something will be lost squeezing down to the required mandate
It is true we have to go digital and to get down to the required bandwith per talk path of 6.25kHz, digital is the only way at this time. As of today there is no one that we could locate offering a conventional analog system that meets the mandate. If you know of a company let us know. The reason you may have difficultly locating a company that offers it is due to the fact conversation over analog require a lot more bandwith to be understood. Our old system was 25kHz per talkpath. So as you can see something will be lost squeezing down to the required mandate