Well, German gunnery "improved in speed and accuracy, until, between 17000 and 20000 yards DoY frequently straddled and there were many near misses."
According to p15 (sinking of Scharnhorst)
For me quite interesting to know was British jammers really effective against German naval radar or not? Maybe this is answer on question why Scharnhorst was blind up to 12000 yardes. That might be true that DoY used jammer immediately after fixing Scharnhorst on radar.The reported improvement of the enemy's fire in the later stages was PROBABLY due to some or all of the following: ... cessation of radar jamming when DoY mainmast was hit, and the jamming set put out of action.
And another side of story. German battle cruiser Scharnhorst, interrogation of survivors p10
Does this ship have an antiradar set or not. According to last statement it does?"Jammer: Several survivors have referred to a Jammer carried on board, although it is not clear whether this was used in connection with enemy W/T or radar traffic. One survivor said that their own radar could not be used when it was switched on."
Here goes p19 where we read about
But it is well known that the admiral Frezer asserted in his action report "There is no doubt that, despite its shortcomings, British radar is still far superior to any yet encountered in German ships, and that this technical superiority and the correct employment of the gear enabled the Home Fleet to find, fix, fight and finish off Scharnhorst." I wonder is it tactics to improve morale like with German guided bombs?Gunnery radar: no useful details of the particular gunnery radar arrangement of the Scharnhorst were obtained, but it appears that there were two sets, probably fitted with beam-splitting with a possible accuracy of plus or minus one to two mils (3-6 minutes) (Note - This bearing accuracy, if true, would be of a high order comparable with that obtained with 274 and the later US low angle gunnery radars).