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ComGroup is pleased to be able to supply the latest communication Infrastructure equipment from Dalman Technical Services.
Dalman is world leaders in the field of signaling, voting, and simulcast equipment.
Headquartered in Hampshire, UK, Dalman is operated as a limited company and is a wholly owned subsidiary of ComGroup Australia Pty Ltd since February 2006. |
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We are pleased to be able to offer customers:
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VOTER 30450 RSSI
The 30450 Voter is a stand-alone RSSI voter and Line Interface Unit with a capacity for 16 Lines. The Voter provides the best signal selection (Voting) and transmitter steering when used in a multi-station PMR System. The voter forms the Interface between the control room (Console Dispatcher equipment) and the lines or links used to connect to remote Base Station sites.
• Capacity available in 1x16 or 2x6 line.
• Votes on out of band Received Signal Strength Indicator tone.
• Receiver mounted RSSI tone generator PCB is available separately.
• Voter algorithm configuration includes “Hold” and Change on “Step-size”.
• Global RTN Inhibit facility
• Talk-through Re-broadcast facility.
• Transmitter key steering – Selection configurable
• Engineer/Emergency handset connector
• Engineer Terminal PC application software for configuration and interrogation included.
• VOIP Interface available.
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Quasi-Sync - (SOLAR)
In two-way radio systems Quasi-Sync, also often referred to as Simulcast, refers to the practice of transmitting a signal (usually voice) to a group of mobile units across a wide geographic area via multiple transmitters. Quasi-Sync allows multiple RF transmitters using a single identical frequency to provide this extended coverage. This is especially important in applications that require wide-area coverage while still preserving limited radio spectrum bandwidth or channels. SOLAR is an integrated system that can provide Quasi-Sync capability using a user supplied IP Network to connect all system elements.
The SOLAR module features include:
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Digital interconnection links (either internet or Intranet) |
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Synchronization of input to Base Station Transmitters, automatically compensating for link delay |
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Can incorporate a voter, which automatically selects the best Base Station Transmitter |
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A 1PPS input from a GPS receiver to synchronise each site |
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8 controls and 8 monitor I/Os to facilitate remote supervision of the local environment. |
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Supervision features enable the user at the Base Interface Unit to determine the status of that Unit, the Station Unit
and Environment. |
The COSMOS family, which is an analogue version of SOLAR and used in non-IP applications, is also available upon request. |
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Sat-Sync 40642 (GPS Antenna RX)
Used in the Quasi – Sync System, the model 40642 GPS Antenna RX is an aerial, receiver and serial interface all in one self-contained unit. Based on a Jupiter / Zodiac module it provides a 1PPS stream along with NMEA format time, position and status data via two duplex serial interfaces. There is no need for RF in the interconnecting cable.
• GPS Standard Positioning Service
• 12 Channels of continuous tracking
• RS422 Time/Status Interface
• Weather and UV resistant Operating -30 ° C to 70 ° C |
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