[Kurtl12]

Interrogation report for sortie 60/787 of 13/10/1944 for Mosquito NS656 shows the following targets:
P/C/a/3398.
Nem.Brod.A/D.
Chrudim A/D.
Scutec. A/D.
P/C/a/3390.
P/C/a/3397.
Leignitz a7d:
Leignitz/Schanfeld A/D.
Aslau. A/D.
I'm aware of most aerodromes in that list (except Nem.Brod and Leignitz/Schanfeld A/D). Who can give further details about the navigational waypoints P/C/a/3398. etc.? It certainly is part of navigation system similar than that used by the german Luftwaffe. I am not familiar with this. Thanks!