Hello!
It's been years, but IIRC Togo was not ready to lead nightfighters during the three Helsinki raids.
Germans had also ground based radars for 4./NJG 100. These were based on Estonian Northern coast (Kuusalu, at least) and able to guide over Gulf of Finland.
There's this book:
Nachtjagd-Leitschiff "Togo"
https://books.google.fi/books/about/...AJ&redir_esc=y
Which IIRC again has logbook entries.
I hope Andrus is able to provide you better info. I simply do not have time to dig this more.
All the best,
Kari