On re-re-reading the post, I suspect the MA/COM salesman proposes just adding an analog trunked group to the system and calling that group talk-around. Just another group in the trunked system. Any group can be either Provoice (EDACS only) or P25 digital or Analog FM.
To many folks in the land mobile business talk-around refers to simplex operation on the output frequency of a repeater station and operation independent of the repeater station. (hence my earlier post about collisions with trunked and simplex operations). From what I understand the problem with high noise environments and intelligibility is due to the characteristics of the DVSI IMBE vocoder and how this noise is treated in quantizing. Another talk group will not help in building coverage issues because the trunked system treats all groups alike unless a group by attributes is steered to one particular site in a multisite system. I am most familiar with simulcast. I believe the problems with P25 digital are exactly that and have nothing to do with brand or manufacturer. 73, Steve NU5D [EMAIL PROTECTED] wrote: > Not wanting to start a flame war, but since I know there are some P25 > gurus on here, I am posting this email exchange between an EDACS user > and their local representative. Its rather self explanatory, I am > looking for comments on the response; specifically, don't P25 radios > have an analog mode? All (constructive) comments welcome. >
