ha ha ha
I have to laugh whenever I read the line that the OpenSky, or any other digital trunked system, promotes interoperability. It's a joke. Before everybody started jumping on the "I need to spend zillions of dollars" bandwagon, they all had great interoperability that worked well and very simply in the field. Agencies had VHF 154.905, 154.935, 155.370 and 155.475 as mutual law enforecement channels. An easy flip of a channel selector switch on a radio got you there. No patches, no complicated menues to scroll through. Same goes for fire, as 154.280 works as a great mutual aid channel. For some reason the stuff that worked so well and simply had to replaced with costly junk that compromises safety. I think if everyody had remained on VHF, and went to digital transmissions on the same frequencies, it would have been much better. But nowdays it's all about spending millions of dollars that we really don't need to spend.
I just wonder, when Atlanta and others go P25, how simple it is for an officer to talk to another agency during chase or other hot situation? Flipping through menus...asking dispatch for a patch?
My two-pence worth.
BG..