The transmission link is intended for connection of measurement equipment (network analyzers, spectrum analyzers) to remote units under test especially in large-scale anechoic chambers. It can be used as a universal instrument for high-fidelity transmission of radio signals over long distances with low losses and as an alternative of legacy coaxial cable systems. The link features enhanced stability of frequency characteristics for metrologicalgrade applications.

Frequency ranges 0,01...40 GHz

TRX-40G consists of an optical transmitter, an optical receiver and a fiber optic cable (optional) with a single-mode optical fiber. The transmitter and receiver have two channels, which allows simultaneous and independent transmission of two radio signals using optical spectral multiplexing (CWDM) technology.

The transmission line has three variants:

— LN: equipped with an LNA at the optical transmitter’s input to provide low noise figure;
— HL: equipped with an LNA at the optical receiver’s output for better linearity;
— EA: without RF amplifiers which allows the consumer to independently choose the optimal amplifiers for different applications.
The receiver and transmitter are made in a dust- and moisture-proof housing, designed for use in harsh environment. TRX-40G has a built-in automatic control and diagnostic system that ensures optimal operating modes and monitoring of the operability of all components. The transmission line does not require adjustment and setup, and is ready for turn key operation.

  • Measurement equipment
  • Distributed antenna systems
  • Radio communication equipment
  • Synchronization links
  • Legacy coaxial lines replacement
Special Features
  • Uniform frequency response in the operating frequency range
  • High stability of parameters over a long period of time without calibration
  • Efficient optoelectronic conversion with low signal loss
  • Compact dimensions for universal placement
  • Digital monitoring and control
  • Designed for harsh environment
Technical specifications
Frequency ranges 0,01...40 GHz
Transmission gain
   option LN and HL
   option EA

min. +3 dB (10 GHz) ... −7 dB (40 GHz)
min. −25 dB (10 GHz) ... −30 dB (40 GHz)
Noise figure
   option LN and HL
   option EA

max. 10 dB (10 GHz) ... 15 dB (40 GHz)
max. 33 dB (10 GHz) ... 40 dB (40 GHz)
Input RF power
   option LN and HL
   option EA

max. 0 dBm
min. 20 dBm
Power supply voltage 15...30 V

Rosette V (2,4 mm)
Switchcraft EN3P6MX
Fiber cable Field-grade, reinforced with aramid yarn, on a coil
Module dimensions 250 × 150 × 150 mm