This model is not capable of firmware updates in the field so no files are available for download. Contact Lectrosonics if you need a firmware update.
UCR411a/UCR511a Audio Board v1.6 - 27 March 2013
Version 1.6 is a backport of all features in version 6.0, to work on the older hardware. Use with RF board firmware version 6.0 or higher.
UCR411a/UCR511a Audio Board v1.5 - 25 November 2009
Version 1.5 is a backport of all features in version 4.1, to work on the older hardware. Use with RF board firmware version 4.0 or higher.
UCR411a/UCR511a Audio Board v1.4 - 19 January 2007
Version 1.4 is a backport of all features in version 4.0, to work on the older hardware. Use with RF board firmware version 4.0 or higher.
UCR411a/UCR511a Audio Board v1.3 - 29 March 2004
Version 1.3 is a backport of all features in version 3.2, to work on the older hardware. Use with RF board firmware version 3.2 or higher.
UCR411a/UCR511a Audio Board v1.2 - 20 January 2004
Corrected pilot tone frequency in 200 series compatibility mode.
UCR411a/UCR511a Audio Board v1.1 - 07 January 2004
- Fixed limited headroom problem in DSP noise reduction algorithms.
- Corrected sensitivity of RF-based noise reduction to match the UCR411.
UCR411a/UCR511a Audio Board v1.0 - 30 December 2003
First production release.
