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TAC-3290 Microwave Tuners

Delivering high performance microwave downconversion to harsh environments

The TAC-3290 tuner product family brings unparalleled flexibility and high performance microwave frequency conversion to users in harsh, space-constrained environments. Analyze more effectively and collect a wider range of signals with smaller single-channel (TAC-3290) and dual-channel (TAC-3294) RF options. Maximize digitizer results from signal records and downstream equipment with complete control over the output frequency and bandwidth.

  • Tune any RF input frequency from 0.5 to 26.5 GHz with optional frequency extensions to 44 GHz
  • Tune any IF output from 0.5 to 4.5 GHz
  • Selectable bandwidths of 500, 1000 and 2000 MHz

Frequency Converter Specifications

Multiple Bandwidths, Tunable IF

  • Dynamically configure the IF center frequency and bandwidth 

Wideband Operation

  • Tuning up 26.5GHz and 44GHz with optional extension module, up to 2GHz intermediate bandwidth

Phase Coherent

  • Multiple phase-coherent configurations available

GUI- and SCPI-Based Interfaces

  • Complete SCPI-based command set accessible over Ethernet or serial ports
  • Browser-based, GUI interface

See datasheet for details

Key Specifications

RF Inputs

  • Primary: 1.0–18GHz, 1.0–26.5GHz
  • Optional Secondary: 18–26.5GHz, 26.5–40GHz, 18–40GHz
  • Optional Low Band: Tunes down to 100MHz

IF Outputs

  • Selectable Bandwidths: 500, 1000, 2000MHz
  • Gain: 10–50 dB, 1 dB steps
  • AGC: Pout 0 to -20 dBm, with input range -10 to -50 dBm


  • Remote Ports: RS-232 and Ethernet
  • Control Methods: SCPI-based, browser-based GUI

See datasheet for details


  • TAC-3290 Base Unit: Tuner, 0.5–26.5GHz
  • TAC-3294 Dual Channel Unit: Tuner, 0.5–26.5GHz

Options: Input Extensions

  • FXTX-35: Extends input to 44GHz
  • FXTX-35-C: Extends to 44GHz

Other Factory Options

  • -ATT: Adds input attenuator
  • -LN: Improves phase noise
  • -SWP: Fast step/sweep/search
  • -M, -S: Master/slave option
  • -C: Phase coherent option
  • -2U: Benchtop chassis
  • -AGC: Adds output level control

See datasheet for details

Maximize your frequency coverage with the FXTX block downconverter

The FXTX block down converter is optimized to pair with the TAC-3290 downconverter, extending the operational frequency to 44 GHz. With single-channel and dual-channel options, and 10 kHz tuning resolution, this rugged and compact solution provides the scalability to expand the performance of our low-SWaP frequency converters.


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