WORLDWIDE DX CLUB Weekly Top News

scheduled to be completed in 2006 to 2007, depending on the weather
conditions at the different sites.
Some of the 14 curtain antennas and 5 quadrant antennas at the Kigali
Station have been standing since more than 15 years without maintenance.
The last routine inspection showed that various components are in need of
servicing.
The scope of works at the Sines and Trincomalee Stations includes
maintenance and modernization with the goal of bringing all systems up to
stateof-the-art status.
The east-west three SW antenna at Trincomalee Station has been in sce
since 8 years. Thomson will modernize the antenna support systems.
Sines, situated on the coast of Portugal, boasts a total of 3 rotatable
antenna systems. The last check showed that due to the proximity to the
aggressive coastal ambient conditions, certain components show damage from
corrosion. Thomson will be putting these parts back into good condition.
The Public Building Administration of Ems-Weser (Germany) contracted
Thomson Broadcast for the maintenance of the antennas installed at the
Ramsloh Station. Scope of work includes the repair of the 110 kV and 220
kV insulators in the top load ropes. The Ramsloh stn is equipped with a
total of 8 guyed long wave masts, each with a height of approximately
380m. Thomson has been entrusted with their maintenance since years.
(Thomson Broadcast & Multimedia, Switzerland, 8 Nov 2006,
via wwdxc BC-DX TopNews)
Ramsloh is the German Marine radio transmitter for communication with
submarines worldwide up to 30 meters water depth.
aus
DHO 38 - Marinefunksender Saterland-Ramsloh.
Die Marinefunkstelle Saterland-Ramsloh ist seit 1982 in Betrieb und zaehlt
auch heute noch zu den modernsten Anlagen dieser Art weltweit. Der Sender
besteht aus zwei Anlageteilen (Halbanlagen). Die maximale Sendeleistung
betraegt etwa 700-800 kW bei einer Frequenz von etwas mehr als 20 kHz
(Laengstwellen). Laengstwellen unter 30 kHz werden fuer die Kommunikation
mit getauchten U-Booten eingesetzt, da sie sich mit grosser
Zuverlaessigkeit (beinahe) ganz um den Erdball ausbreiten und dabei. im
Gegensatz zu Funkwellen mit hoeherer Frequenz. auch in den Ozean
eindringen.
Auch die Eindringtiefe der Laengstwellen sind stark begrenzt! Maximal 30m!
Ausserdem abhaengig von Wassertemperatur, Salzgehalt, Reinheit des
Wassers. UKW ist dort Null.
vy73 de Wolfgang DF5SX