thinkRF RF D/T

Small, powerful and cost-effective downconverter / tuner for the next generation RF environment.

RF Downconverters/Tuners

Built-in Local Oscillators | Pre-Select Filtering | Single IF Output

Extend Your Frequency & Bandwidth Performance to 5G mmWave Bands

Downconverters are one of the most economical and cost-effective methods for increasing the frequency performance of RF signal analysis systems. In the new world of 5G networks, a downconverter can reduce time to market and costs for mobile operators and system integrators.

thinkRF D4000
5 star rating
5 star rating
5 star rating
5 star rating
5 star rating

The thinkRF series of RF downconverters/tuners are designed for maximum performance and interoperability. The D4000 RF Downconverter/Tuner enables translation of RF signals in the frequency range of 24 – 40 GHz with up to 500 MHz of real-time bandwidth (RTBW), to capture mm-wave 5G signals.

thinkRF RF Downconverter/Tuner Key Features


  • Frequency range (RF IN) 24 – 40 GHz
  • Frequency range (IF OUT) 1.536 GHz
  • Real-time bandwidth 500 MHz
  • Tuning resolution 100 kHz
  • Pre-select filtering
  • Built-in local oscillators
  • 193 x 193 x 41 mm (7.6” x 7.6” x 1.6“)
  • 1.7 Kg (3.7 lb.)
  • 20 W
  • Open environment (spectrum monitoring)
  • Controlled environment (lab/production testing)


  • Frequency range (RF IN) 9 kHz – 8 / 18 / 27 GHz
  • Frequency range (IF OUT) 55 MHz / 1.2 GHz
  • Real-time bandwidth Up to 160 MHz
  • Tuning resolution 10 Hz
  • Pre-select filtering
  • Built-in local oscillators
  • 257.3 x 193.7 x 60 mm (10.13” x 7.63” x 2.36“)
  • 2.54 Kg (5.6 lb.)
  • < 25 W
  • Open environment (spectrum monitoring)
  • Controlled environment (lab/production testing)

Why thinkRF RF Downconverter/Tuner is Right For You

thinkRF RF D/T have up to 500 MHz of analog bandwidth and a frequency range from 50 MHz to 40 GHz that covers the entire mm-wave frequency range for 5G FR2. The Pre-select filtering is a sophisticated RF filter technology that eliminates out-of-band signals and enables spurious mitigation. Without filtering these can result in interference within the analysis bands. thinkRF RF D/T are equipped with single IF output which enables easy integration with spectrum analyzers or receivers. Built-in local oscillators eliminates the need for external synthesizers. thinkRF RF D/T can be extended to cover lower 5G FR1 bands using other complementary thinkRF receiver products. You can synchronize multiple units to coordinate a compound signal monitoring system, particularly for wideband signal monitoring and capture.

Open APIs
Easy integration
No local PC required

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