AQ6374 Wide Range Optical Spectrum Analyzer


This firmware is intended to upgrade the AQ6374 to the latest version.

Revision History

Version Release Date Content
R01.04 Feb 14, 2020
  • Fixed a rare startup problem when using the PRESET WORD function
R01.03 Jun 14, 2019
  • Added the communication protocol VXI-11.
  • Added non-communication timeout function for ETHERNET remote.
  • Added a color temperature to item of COLOR analysis function.
  • Enhanced NF analysis (added power integration function for modulated light spectrum).
  • Improved operation of the SYSTEM LOG screen.
R01.02 May 24, 2017
  • Improved the screen initialization algorithm at power on.



Please read Software Agreement carefully before downloading.


Version R01.04
Release Date Feb 14, 2020
File Name 2.06 MB


Type Firmware* Registration is required to download.


* Software Agreement
  • The property rights, proprietary rights, intellectual property rights, and all other rights associated with the software are held by Yokogawa Electric Corporation.
  • Under no circumstances is any dumping, reverse compiling, reverse assembly, reverse engineering, or any other kind of alteration or revision of this software allowed.
  • This software is offered free of charge, but no unlimited warranties are made against any defects whatsoever.
  • Also, Yokogawa may not be able to accept inquiries regarding repair of defects in or questions about this software.
  • The contents of this software are subject to change without prior notice as a result of continuing improvements to the software\'s performance and functions.
  • Yokogawa bears no liability for any problems that may occur during download or installation of this software.
  • Use of the Yokogawa Web site is at the user\'s own risk.
  • Any parties contributing to the creation or distribution of the contents on the Yokogawa Web site shall bear no responsibility whatsoever for any damages occurring as a result of the use of said contents.

Downloading of the software indicates acceptance of the software agreement.

Related Products & Solutions

AQ6374 Wide Range Optical Spectrum Analyzer 350 – 1750 nm

The AQ6374 Wide Range Optical Spectrum Analyzer covers wavelengths from 350 to 1750 nm including visible lights (380 to 780 nm) and the telecommunication wavelengths.