Do you mean that these radars are
historically accurate in that they are blurred beyond recognition?.. and that the bearing gauges and range scale read out is so out of focus as to be not readable at all? Hmm..
I'm referring to SH4 of course. Been looking all over Google with no luck.
Look at this guys radar..
And look it these:
It was once discussed and resolved on this very forum but the add-on links are no longer available..
http://www.subsim.com/radioroom/showthread.php?t=140855