This kind of connection provides several advantages:
- larger antenna cable distances (the distance between antenna and receiver can be up to 2000m with this system)
- no destructive overvoltage via the antenna cable
- no unintentional monitoring via optical fiber
The receiver-side module DOAL/R is supplied by the receiver via the antenna cable, therefore an external power supply is not necessary. The module DOAL/A requires an external supply of 100-240V/50-60Hz for operating and feeding the antenna.
The DOAL system is suitable for all Meinberg DCF77 radio clocks, even upgrading existing installations is possible. This includes the correlation receivers PZF509/510 and the PZF-based NTP time server LANTIME/PZF.
Additionally, it is possible to completely decouple the antennas of combination receivers (like Lantime/SHS) in combination with the GPS Optical Antenna Link Set (GOAL) .
DOAL will be available at the end of the first quarter '06.
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