Icom UT-111 [9/30] Selective call dtmf decoder

Содержание

Model UT lll LTR Logic Board The duration of the Scan Resume timer is programmed by the radio dealer In addition certain Group ID codes such as interconnect IDs may be optionally locked out of the Group Scan mode by the radio dealer Block Decode ID The Logic Board can be programmed to decode a range of ID codes from 001 to 250 This is accomplished by pro gramming the Upper Block Decode and Lower Block De code registers When an ID code is received that is within the range of the Upper Block and Lower Block ID codes the receiver will open and the display will indicate bd The Block Decode is a receive only function and transmis sion on a decoded Block ID is not possible 1 3 Selective Call DTMF Decoder A Selective Call DTME Decoder is available for use and is programmed by the radio dealer This Decoder allows for the selective call of an individual or group of radio transceivers When the programmed 4 to 8 digit DTMF sequence is decoded the transceiver will generate a ring signal to alert the user of an incoming call The transceiver will then pass audio to the speaker and the display will indicate CA Each transceiver in the trunking system may be programmed w ith a unique selective call DTMF sequence This allows for privacy between users on a Group ID even if many other transceivers are programmed with the same Group ID The Decoder is global in nature and will operate on any selected trunked system The Decoder can be enabled or disabled for each programmed Group ID in the transceiver The Selective Call DTMF Decoder is also operational while in the Scan Mode If the Selective Call DTMF Decoder is enabled for a particular Group ID audio on that selected Group ID will not be passed until the selective call has been received If a user desires to place a call on that Group ID pressing the PTT switch to transmit will momentarily disabled the Decoder and allow audio to pass to the speaker Audio on that Group ID will be muted after activity on the selected Group ID ceases and the Selective Call Timeout occurs The Selective Call Timeout is programmed by the radio dealer and can range from 1 to 35 seconds This feature cannot be enabled with Icom cloning software CS F3 version 3 0 or CS F300 version 2 1 6

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