Someone told me today that LAPD has purchased some small Vertex APCO25 hand helds for specialized use and is about to buy a bunch more and maybe to replace all Motorola's. Anybody know about this?
I believe the proprietary stuff is "OTACS" (Over The Air Channel Steering).... Motorola is the only vendor that can provide the proprietary stuff that will work with LAPD's existing communications hardware/software ...
As the radio moves throughout the repeater network the channels physically available to the channel knob (i.e., 1 through 16) are changed to reflect the area. These channels must already be available in the radio.Wayne_H - can you explain what OTACS is, or how it is used? Peter Sz
As far as I know Motorola's is something different though definitely similar in nature. From what I have seen the repeaters send out a transponder which directs the radios what to do. Whichever channels are loaded in to 1-16 is a default set; they'll always be the same in that area.Wayne - IIRC the FBI got radios maybe 5 years ago that had similar capabilities. I think they had GPS linked to the mobile radios and this allowed the ( possibly 'Harris') radios to always access the best repeater site. Does that ring a bell at all? Is that analogous to the LA City system? Peter Sz