Same as v6.0, but for older models with Philips PLL and 11.3000 MHz crystal.
Backport of version 6.5 to the 5.x branch, for use in UH400TM units with the older PLL.
Added support for blocks 470, 19 and 944.
Lowered corner frequency of subsonic filter, to preserve low frequency performance required by UH400TM model. Other models roll off low frequencies in analog, such that this change to the digital filter has virtually no effect.
Note: It was not necessary to backport this feature to the 3.x or 5.x branches, because no UH400TM has ever used the old PLL.
Same as v6.4, but for older models with National PLL and 11.3000 MHz crystal.