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UCR411a/UCR511a Audio Board Firmware Revision History 2.0 to 6.0 Series

 

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 v6.0 - 13 March 2013

UCR411a/UCR511a Audio Board v4.3 - 11 October 2012

Corrected modulation acceptance level in compatibility mode "EU M6". No other modes are affected.

UCR411a/UCR511a Audio Board v4.2 - 19 June 2012

Adjusted audio meter timing to more closely match transmitter audio metering.

UCR411a/UCR511a Audio Board v4.1 - 25 November 2009

UCR411a/UCR511a Audio Board v4.0 - 08 September 2005

UCR411a/UCR511a Audio Board v3.2 - 29 March 2005

Extended limiter overhead range in 200 Series compatibility mode.

UCR411a/UCR511a Audio Board v3.1 - 01 February 2005

Made frequency response very slightly flatter (using DSP to compensate for a 0.4 dB dip at 8 kHz).

UCR411a/UCR511a Audio Board v3.0 - 27 September 2004

UCR411a/UCR511a Audio Board v2.0 - 12 May 2004

New firmware for Rev. E of the audio board.