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Combilent Group develops and delivers state of the art
RF Critical Communication Infrastructure Products.
Transmitter Combiners.jpg
Filter Duplexer.jpg
TMA-TTA Image.jpg
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Monitoring.jpg
Miscellaneous.jpg
Transmitter Combiners
Combilent Transmitter Combiners are designed to facilitate site optimization and maintenance. They include remote and continuous configuring, features for monitoring and controlling antenna RF power (forward and reflected), antenna return loss (VSWR) and more.
 
DS18818 - Cavity Combiner
  • Combilent provide a line of compact cavity combiners featuring integrated antenna power monitoring. Models are available covering UHF 350-512 MHz and 700/800/900 MHz bands.

  • Alarms are generated upon high antenna VSWR and/or high temperature and are user configured through Ethernet or SNMP.

  • Ethernet, web interface SNMP, and SYSLOG enabled monitors provide information on forward power, reflected power, antenna VSWR and heat sink temperature while also allowing for easy factory or field tuning using only the base station radio and a PC.

  • All modules are broad band (20 MHz) and symmetrical.

  • Picture shows a 4 Ch. Cavity Combiner with integrated Frequency Selective Power Monitor and expanded by additional 2 Ch. Cavity Combiner.

DS20398 - Hybrid Combiner
  • An economical alternative to two duplexers, featuring two antennas and two antenna cables.

  • Wide or narrow bandwidth for UHF. Full band for 7/8/900 MHz.

  • Low Noise Amplifier ensures maximum sensitivity.

  • Plug and play connectivity reduces installation and set-up time.

  • No tuning required (tuned to customer frequencies at our factory).

  • Only Combilent Transmit Combiners feature frequency selective integrated antenna power monitors and optional auto tune capability.

  • Picture shows a 2 Ch. Hybrid Combiner with integrated Duplexer system

 
Filters / Duplexers
Combilent filters and duplexers are designed to operate in the most harsh, remote and extreme conditions. They are built with industrial grade components, and rigorously tested to ensure optimal functionality in any environment.
DS18825 - Tx Filter
  • Integrated milled one-block Tx filter units with compact dimensions and high levels of integration.

  • Less potential for loss, failure and intermodulation due to Combilent design innovations that incorporate less cables, components and connections.

  • Combilent filters feature optimized insertion loss, attenuation, bandwidth and selectivity to ensure ideal system performance.

  • Picture shows a Tx filter in a milled one-block unit.

DS21955 - Filter capabilities
  • Integrated milled one-block Rx filter units with compact dimensions and high levels of integration.

  • Less potential for loss, failure and intermodulation due to Combilent design innovations that incorporate less cables, components and connections.

  • Combilent filters feature optimized insertion loss, attenuation, bandwidth and selectivity to ensure ideal system performance.

  • Picture shows an Rx filter with integrated RMC in a milled one-block unit.

DS21955 - Duplexer capabilities
  • Duplexers range in size and power handling capability, from two channel units to multi-channel high-power base station units, providing critical isolation between receiver and transmitter.

  • No tuning required (tuned to customer frequencies at our factory)

  • Picture shows a Duplexer with integrated Tx Power Monitor and RMC.

TMA - TTA
Combilent provides a range of Tower Mounted Amplifiers (TMA) – known as Tower Top Amplifiers (TTA) in the USA – for use with TETRA, P25, or DMR base stations. TMAs installed at the top of the tower, close to the antenna, significantly improve coverage areas by balancing the uplinks and downlinks and eliminating cable losses.
 
DS15543 - TMA
  • Combilent’s TMA/TTA products offer the most and lightweight and compact form factor on the market for ease of installation and integration.

  • Quality manufactured, integrated one-block unit, ensuring less points of failure and lower noise figure from less cables, components and connectors.

  • Integrated filter (band pass or duplexer) and LNA with onboard surge protection.

  • System gain setting, visual indicators and relay alarm output at the Receive Multi-Coupler (RMC).

  • Rx distribution from the RMC (AC mains or DC power supplied).

  • Combilent TMAs are 50% more compact than industry-standard TMAs.

RMC
Combilent’s Receive Multi-Coupler systems facilitate coupling of multiple receivers to a single antenna – this eliminates the need for dedicated antennas for each receiver. All RMC systems are highly integrated, and include the receive filter, LNA, distribution to multiple receivers, TMA power supply and control unit.
 
DS18855 - RMC
  • Combilent’s High Performance RMCs include high selectivity band-pass pre-selectors for protection against unwanted noise, as well as balanced amplification and an integrated DC back-up connection (+12V).

  • Designed for VHF, UHF and 700/800/900 MHz.

  • Gain control and status are visible on the front panel display.

  • The RMC parts are housed in a single chassis for rack-mounting in Base Transceiver Stations. Cable
    runs and cabling costs are minimized, and cable signal loss and noise figures are reduced.

  • Ethernet, web interface SNMP and syslog enable monitoring of system health and configuration of
    system gain.

  • Single band and dual band RMC versions are available (no TMA).

  • Picture shows an RMC with integrated Rx Filter, LNA, TMA Power Supply and Control Unit.

Monitoring
Combilent provides a range of monitors, all facilitating remote supervision of a wide range of critical performance parameters, and all available in VHF, UHF and 700/800/900 MHz bands.
 
DS21736 - Tx Composite Power Monitor
  • Functions on one or two channels.

  • Measures the total RMS power of all signals in the system using a dual directional coupler, a switch selecting forward or reflected power and an RMS detector.

  • Ethernet / web-server SNMP enabled / SYSLOG.

  • Picture shows a Composite In-line Tx Monitor with ETH interface, integrated web-server, SNMP and relay alarm output

DS19788 - Tx Stand alone Frequency Selective Power Monitor
  • Frequency selective.

  • Supports up to 10 carriers of 50W each.

  • Passive intermodulation hardened.

  • Compact form factor, 2RU.

  • Ethernet / web-server SNMP / SYSLOG enabled.

  • Measures forward and reflected power, antenna VSWR and temperature.

  • Alarms are user configured via web interface or SNMP.

  • Picture shows a Stand-alone Frequency Selective Power Monitor with ETH interface, integrated web-server, SNMP and relay alarm output.

DS21093 - Rx VSWR Monitor
  • The RX Antenna VSWR Monitor attaches between the RMC and the RX antenna.

  • VSWR of the receiver antenna is monitored periodically, with data accessed through
    Ethernet, web server and SNMP.

  • The RX signal runs through the RX Antenna VSWR Monitor. It has low insertion loss
    and maintains signal integrity.

  • Picture shows an in-line Rx VSWR Antenna Monitor with ETH interface, integrated web-server, SNMP, and relay alarm output

Miscellaneous
Combilent offers a number of services in connection with the optimization and maintenance of your antenna site. We offer extensive racking services, field support, and feasibility and prototype studies on request.
 

​Racking

  • Technical description

  • Block diagrams

  • Rack layouts

  • Complete system test data

  • Picture shows a racking solution for a 6 Ch. UHF Dual Band System

Contact us for more information

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