This
room contains a Hellschreiber and two rare Siemens 12 rotor
Geheimschreiber enciphering machines for direct telegraphic
communication. A steel locker held the H.Q. stationery. The transmitter
room, although restored is yet to be fitted with the correct equipment.
It is known to have contained a 20 watt LW transmitter and a very
powerful SW French SAIT 1000 watt. Enquiries are being made to the Dutch
SAIT company archives regarding the specification of this transmitter.