Brand:Signal craft
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Typical Applications

  • Harmonic level measurements to 18 GHz in production test
  • Intermediate Frequency Interface for 5G Research and Development
  • 802.11ax (U-NII-5 5925-6425 MHz, U-NII-6 6425-6525 MHz, U-NII-7 6525-6875 MHz, U-NII-8 6875-7125 MHz) testing on legacy 6 GHz Instruments

Both up- and down-conversion functions are housed in a single-slot PXIe module. An independent local oscillator (LO) is available for each block. Optional LO input ports are provided to support measurements requiring extremely low phase noise performance.

The down-converter includes a bypass path to minimize cable swapping when the mixer is not required. The bypass path includes a user-selectable filter bank and low noise amplifier for signal conditioning purposes. For harmonic measurement applications, a bank of high pass filters (HPF) is available to reject the fundamental signal and provide better dynamic range. The down-converted signal is passed through 5GHz intermediate frequency (IF) filter for spurious rejection prior to output from the module.

Like its counterpart, the up-conversion path includes bypass capability and several signal conditioning options. Self calibration of the instrument is possible using the built-in loop back signal in the up-converter.



  • General purpose Up/Down Conversion functions
  • Single-Slot 3U PXIe Module
  • Operating Conditions: 15 to 45 C

Rx Down-Conversion Path

  • Input Frequency: 6 – 18 GHz
  • Output center frequency: 5.1 GHz
  • Maximum Input Power: +20 dBm
  • Maximum Harmonic Input Power: -25 dBc
  • Instrument Generated Harmonic Distortion (@20 dBm):
    • 2nd: -80 dBc
    • 3rd: -75 dBc
  • IF Filter Bandwidth: 200 or 1500 MHz
  • Calibrated Amplitude Accuracy: 1 dB
  • Noise Figure @6 GHz:
    • 11 dB with Pre-Amplifier
    • 25 dB without Pre-Amplifier
  • Noise Figure @18 GHz:
    • 21 dB with Pre-Amplifier
    • 36 dB without Pre-Amplifier
  • Gain (@6 GHz):
    • 5 dB with Pre-Amplifier
    • -11 dB without Pre-Amplifier
  • Gain (@18 GHz):
    • 17 dB with Pre-Amplifier
    • -0 dB without Pre-Amplifier

Receive Mixer Bypass Path

Allows instrument to remain in the signal path and provides some optional signal conditioning for frequencies less than 6 GHz.

Transmit Up-Conversion Path

Allows signals to be conditioned and optionally mixed up to a higher frequency.

  • Input Frequency range: 400 MHz – 6 GHz
  • Output Frequency range: 6 – 18 GHz
  • Maximum Output Power (rms): 10 dBm max
  • Fundamental Rejection: 30 dB min
  • Calibrated Amplitude Accuracy: 1 dB
  • Gain (@6 GHz): 4 dB
  • Gain (@18 GHz): -8 dB

Transmit Bypass Path

Conditions VST signals by filtering out unwanted harmonic and spurious content.

  • Frequency Range: 10 MHz – 6 GHz
  • Insertion Loss : 10 dB max
  • Rejection : 30 dB min
  • Frequency Range: 10 MHz – 6 GHz
  • Insertion Loss : 10 dB max

Instrument Control

  • 32/64 bit IVI Compatible Driver

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