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VSG25A Vector Signal Generator

VSG25A Vector Signal Generator

$842

The VSG25A is a 100 MHz to 2.5 GHz vector signal generator, featuring a 12-bit I/Q baseband arbitrary waveform generator which can be clocked at virtually any frequency from 54 kHz to 180 MHz, and includes a 4096×16 bit pattern buffer for built-in or custom modulation.

All Signal Hound devices are calibrated to better-than-box specs during production. However, if you require a signed calibration certificate with a printed packet of calibration data, you will need to select it below:

The VSG25A hardware features a 12-bit I/Q baseband arbitrary waveform generator which can be clocked at virtually any frequency from 54 kHz to 180 MHz, and includes a 4096×16 bit pattern buffer for built-in or custom modulation.

Read This! The VSG25A is named Microwave Journal’s MVP for the month of May, 2015! Read the full article (1.8 MB PDF).

The included software automatically generates:

  • CW: 100 MHz to 2.5 GHz, -40 dBm to +10 dBm
    • Unspecified operation down to 80 MHz, or -70 dBm to +13 dBm
  • AM / FM: 30 Hz to 40 MHz modulation rates, sine, triangle, square, ramp
  • Pulse: 6 ns to 25 ms width, 12 ns to 1 second period
  • Multi-tone: Up to 1023 tones with optional center notch
    • Use random phase + notch for Noise Power Ratio testing
    • Use parabolic phase for best signal / noise
  • PSK: BPSK, DBPSK, QPSK, OQPSK, DQPSK, π/4 DQPSK, 8-PSK, D8PSK, 16-PSK
    • 4k to 45M symbols per second
    • Optional raised cosine, root raised cosine filtering
    • Up to 512 symbols, streamed continuously in a loop
    • Binary symbol editor features 1-click insertion of PN7 / PN9 sequences
  • QAM: QAM-16, QAM-64, QAM-256 (same features as PSK)
  • ASK / FSK: 4k to 45M symbols per second
    • Optional Gaussian filtering
    • Up to 512 symbols, streamed continuously in a loop
  • Sweep
  • Arbitrary Custom Modulation
    • Load a CSV file with I and Q values, specify center frequency, amplitude, pattern length (up to 2048), pattern period (up to 65535), and clock rate.

The VSG25A vector signal generator does have some limitations. The pattern buffer is small and cannot be upgraded. There is no reconstruction filter on the I/Q baseband, resulting in out-of-band spurious signals, and there is a single 2.7 GHz low pass filter on the RF output, so 3rd harmonics below 3.6 GHz may need to be filtered externally. If these are not show-stoppers for you, the VSG25A is an unbeatable value.

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Device dimensions

Version

Weight.28 lbs (.13 kg)
Dimensions 5.5" x 2.25" x 1.04" (13.5 x 5.7 x 2.6 cm)

Product-in-packaging dimensions

Version

Weight.96 lbs (.44 kg)
Dimensions

Software

VSG25 Software Installer_(x86) v. 1.0.6

  • Software installer for the VSG25 vector signal generator user interface.
  • Includes software, drivers, and manuals.
  • For Windows 7/8/10 systems.
  • Release Notes

Programming

VSG25 Software Development Kit

  • Includes VSG25 programming interface for direct device control.
  • Programming example for C++.
  • For 32 and 64-bit Windows operating systems.

Manuals

All manuals are included in the software installer. For direct links to individual manuals, see below.

  • Software manual
    • Learn how to use and setup the software for the VSG25A.
  • Product manual
    • Technical specifications and information for the VSG25A.