I also wonder whether F-I sites had the callsigns (Decknamen).
The radar combination at the map from BAMA is sometimes very odd. For example, a site is indicated as "2. Ordn., nachtjagdfaehig", but the equipment shown is... 1 small Wuerzburg! Or there are sites with 2 W-Rs and... no Freya! I think the W-Rs were useless without Freya because of their narrow illumination beams. Such examples are quite common while analysing that map... It surely lacks something.