[Premium-Rx] AK 001 Rohde & Schwarz: automatic tuned active antenna

[AKnott at WTD71.de]

Hi, is there anyone out there who is able to supply a manual of the AK 001
which is an automatically tuned active antenna manufactured by Rohde &
Schwarz (Munich/Germany)? This Antenna is tuned by  the BCD-coded frequency
information from the receiver. I need a manual or a good copy to find out
how to connect it to my receivers parallel port. Any info (or question, of
course) welcome!