20 Description TB9400 Installation and Operation Manual© Tait Limited March 20171.6 LicensesSome operational functions of the base station are controlled by licenses.These functions will not work unless you purchase the appropriate featurelicense and enable the feature set controlled by that license. The feature setscurrently available are listed below.Analog Air Interface(TBAS041 - DefaultLicence)A base station with this license can operate as a repeater in an analogconventional network.P25 Common AirInterface(TBAS050)Allows the base station to go into Online mode. Base stations are alwaysprovided with this license.P25 TrunkingOperation(TBAS056)Allows the base station to participate in Trunking Operation. Without thisfeature, the base station cannot provide a control or a status connection toa trunking site controller and it cannot function as a control or trafficchannel.Digital Fixed StationInterface (TBAS060) Allows the base station to participate in a Digital Fixed Station Interface.Central Voter(TBAS061) P25 and analog. This feature allows a base station to act as a central voter.Simulcast(TBAS062) This feature is required in base stations that have transmitters and belongto a P25 Phase 1 simulcast or analog simulcast network 1 . It is also requiredin the central voter of a simulcast channel.2Linear SimulcastModulation(TBAS065)P25 only. Allows the base station to transmit using the LSM modulationscheme 1. This scheme allows increased site separation in simulcastnetworks. Also requires the Simulcast license (TBAS062).P25 TrunkingFailsoft(TBAS063)Allows trunked channels that become isolated from a site controller toperform simple conventional operation and to interface to a digital dispatchsystem. If a trunked channel consists of several base stations in a channelgroup, only the central voter (normally the master) needs this license. It isthen able to become the failsoft repeater for that channel group.1. Not needed for receive-only base stations.2. The central voter in a simulcast channel needs the respective Phase 1 orPhase 2 simulcast license. Normally, a transceiver member of a simulcastchannel will have a simulcast license, so this constraint should not be anissue.