The clustered repeaters all make use of Motorola Mototrbo TDMA DMR Tier 2 equipment, such as the DR3000 and the SLR 5500 repeater systems.
They are linked together via the Internet, making use of the Motorola IP Site Connect capability.
Users of the SWC may of course use equipment from any manufacturer, but are urged to ensure that the items offered are fully TDMA DMR Tier 2 compatible.
There are some radios which are being sold as DMR. Unfortunately, they are NOT tier 2, only tier 1 compatible, and therefore well not be compatible with the SWC or any of the other DMR networks.
SWC, Slot 1, which only accepts Talk Group 9, is intended as a local nattering channel, much the same as any other 70cm repeater.
SWC, Slot 2, which only accepts Talk Group 950, connects to the cluster of linked repeaters.
Signals accessing slot 2, of any of the SWC networked repeaters, will automatically be re-transmitted across the SWC subject to availability, thus providing greater opportunities for contacts as a result of the combined coverages.
Because there are NO hassles associated with multiple talk groups trying to share the same time slot, the cluster also takes advantage of the "roaming" capability, a major function offered by TDMA DMR, which none of the other DMR networks are believed to be able to take advantage of at this time.
Thus, when travelling around a region, for example mobile, by simply activating the "roaming" capability of a suitably programmed radio, your radio does all the work for you, by automatically switching you to the appropriate repeater for the area you are in. Much like a mobile phone.
* The South West Cluster of DMR Repeaters currently consists of GB7AA, GB7BS, GB7DR, GB7KT, GB7SD and of course GB7JB and GB7YS.
Every Saturday evening between 7 pm and 8 pm a Cluster wide net is held on Slot 2. Everyone is welcome to join in. Don't panic, it's not an enormous net, so you should get more than a couple of overs in ... hi hi.
* Once you leave the jbrepeaters.org.uk web site we are not responsible for the content you find when you get to the external site, nor are we liable for your Internet security. Your Internet security is YOUR responsibility.