Sigma Communication Systems

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The VST Stopes Antenna is an antenna designed to be fitted in place of the line termination normally fitted at the end of a Leaky Feeder cable. The Stopes Antenna will increase ...

The Single Branch Coupler is a passive signal splitter that is used to branch of the main Leaky Feeder arterial to link into a side tunnel. The Single Branch Coupler is configured ...

The Refuge Bay Radio was developed to be utilized in areas allocated as places of refuge within the mine. The Refuge Bay Radio allows communication on a pre-set frequency into the ...

The Power Coupler is a 75 Ohm VHF/UHF Power Coupler is designed to allow for the coupling of DC power into the leaky feeder cable to power the bi-directional amplifiers in the ...

The VHF Mini Line Amplifier VMLAD from Sigma is the industry standard VHF Amplifier for Leaky Feeder Systems. It has been used for many years by hundreds of customers world-wide. ...

The VHF Line Termination Unit is a 75 Ohm impedance unit that terminates the Leakey Feeder in a matched impedance unit. The impedance match is AC coupled so there is no DC power ...

The Line Splice is a 75 Ohm impedance line splice designed for joining 75 Ohm Leaky Feeder cable with minimal loss and excellent impedance matching. No components are used in the ...

The VHF Head End Combiner is the core of the Sigma Leaky Feeder system. The unit combines multiple radio channels on the surface and underground into one single voice and data ...

The Double Branch Coupler is a passive signal splitter that is used to branch of the main Leaky Feeder arterial to link into a side tunnel. The Double Branch Coupler is configured ...

The VHF Area Coverage Amplifier provides a wide area coverage solution to above ground communication extensions of the existing Leaky Feeder system. The provision of increased RF ...

The Single Branch Coupler is a passive signal splitter that is used to branch of the main Leaky Feeder arterial to link into a side tunnel. The Single Branch Coupler is configured ...

The Refuge Bay Radio was developed to be utilized in areas allocated as places of refuge within the mine. The Refuge Bay Radio allows communication on a pre-set frequency into the ...

The UHF Power Coupler and DC-DC Isolator is a 50 Ohm UHF Power Coupler combined with a DC-DC Isolator that is designed to allow for the coupling of DC power into the leaky feeder ...

The Power Coupler is a 50 Ohm UHF Power Coupler is designed to allow for the coupling of DC power into the leaky feeder cable to power the bi-directional amplifiers in the ...

The UHF Mini Line Amplifier UMLAD from Sigma is the industry standard UHF Amplifier for Leaky Feeder Systems. It has been used for many years by hundreds of customers world-wide. ...

The UHF Line Termination Unit is a 50 Ohm impedance unit that terminates the Leakey Feeder in a matched impedance unit. The impedance match is AC coupled so there is no DC power ...

The Line Splice is a 50 Ohm impedance line splice designed for joining 50 Ohm Leaky Feeder cable with minimal loss and excellent impedance matching. No components are used in the ...

UHF Head End Combiner is the core of the Sigma Leaky Feeder system. The unit combines multiple radio channels on the surface and underground into one single voice and data network.

The Double Branch Coupler is a passive signal splitter that is used to branch of the main Leaky Feeder arterial to link into a side tunnel. The Double Branch Coupler is configured ...

The UHF Area Coverage Amplifier provides a wide area coverage solution to above ground communication extensions of the existing Leaky Feeder system. The provision of increased RF ...

The VSTLAND SMARTTune® is a quantum step forward in amplifier design, offering a very SMART attenuator, which means that you can literally install SMARTTune® amplifiers anywhere ...

The SMARTTune® VHF Head End Combiner is the core of the Sigma Leaky Feeder system. The unit combines multiple radio channels on the surface and underground into one single voice ...

The USTLAND SMARTTune® is a quantum step forward in amplifier design, offering a very SMART attenuator, which means that you can literally install SMARTTune® amplifiers anywhere ...

The SMARTTune® UHF Head End Combiner is the core of the Sigma Leaky Feeder system. The unit combines multiple radio channels on the surface and underground into one single voice ...

 

We are one of the leading providers of Wireless & Navigation, Voice and Data solutions with over 15 years of experience. We are also the official authorized Garmin Distributor in Tanzania providing innovative and exciting products.

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