M4T Receiver
M4T v1.04 – 31 August 2011
Removed unnecessary latency from AES/EBU digital audio input path. System latency when using AES/EBU inputs is now 1.6 ms if input sample rate is 192k, 1.8 ms if input sample rate is 96k, and 2.3 ms if input sample rate is 48k. System latency when using analog inputs remains at 1.0 ms.
Also removed factory “D4” mode and added factory diagnostic serial commands.
M4T v1.02 – 09 June 2011
Fixed computational bug causing subtle defects in the noise floor of the headphone amp audio. (Transmitted audio not affected.)
M4T v1.01 – 23 February 2011
First production release.
M4R Receiver
M4R v1.14 – 23 January 2012
Fixed a problem wherein a sudden, very strong signal (e.g. transmitter turned on right next to receiver) yielded noisy audio until the antennas were moved.
M4R v1.13Â – 10 January 2012
Corrected baseband filter width in 2 ch mode, for improved adjacent channel rejection.
M4R v1.11 – 15 September 2011
Added factory diagnostic serial commands.
M4R v1.10 – 09 June 2011
Fixed computational bug causing subtle defects in the audio noise floor.
M4R v1.03 – 24 Februrary 2011
First production release.