Virginia now has gateway systems connected to some 58 dispatch centers in several areas of the state.
These gateways have the normal radio channels that are used every day connected. It only takes a
few mouse clicks to inter connect multiple dispatch centers and their needed radio channels together.
The dispatch centers can even send text messages between the different computers. This allows
for text messages to be sent without tying up a radio channel or the telephone.
The Virginia system is called COMLINC and is online 24/7 for the use as needed. A number of
agencies in the state also have a similar gateway system installed in mobile command vehicles.
You can even use a satellite link for a unit out in the field to connect back to any of the gateways
in the COMLINC system.
Several years back the interop (gateway) system was put out for bids and the Sytech Corp. from
Alexandria, VA won the bid. The gateway goes by the name of RIOS and has a number of version
to pick from. Sort of depends on your application. You can link just about any device that has
audio into another radio device. Doesn't matter what format the radio may be. I have heard good
audio being patched between a Motorola digital trunked system with an EDACS trunked radio and
well as having a conventional analog repeater as a third leg to the patch.
Right after hurricane Katrina, the National Guard came to the same company and ordered 27 systems
that fit into a 16 foot trailer. The intent was these units could be taken any place they were needed.
The size was made to match being able to load them into a C130 for long distance transport. Those
units contained a self support 15x18 foot tent, a 4 ton air conditioner, 2 diesel generators, a UHF repeater
with 25 UHF portables, 2 radio masts and antennas, 2 VHF, 2 UHF and 2 800 MHz radios in a comm
box, the interop gateway with radio interface cables, a fax machine, video telecomm package, tables, chairs and a
few other trinkets like a 1.2 meter satellite link for providing backhaul and internet connections. There was
even a number of IP telephones. The National Guard could take this trailer to a location and be up and
operational in between 30 to 60 minutes after putting the brakes on.
Jim
Gateway devices are a really cool concept. I'm not familiar with the details though. How many of them are ready to go on a moments notice? Or are they usually brought into play when an incident scales up over time?
We had some dispatcher enabled patches between our UHF system and the local PD's VHF system when I worked for a sheriff's dept in So Cal. Obviously that was setup in advance, and didn't include flexibility for other players on short notice.