High Performance Receivers for Time Signals DCF, MSF, WWVB or France Inter
Rec-mini
Technical Data
Time Signals Receiver (without decoding circuit and internal time base).
Time Signals :
REC is available for the following transmitters :
DCF, 77.5 kHz (Mainflingen, West-Germany)
MSF, 60 kHz (Rugby, Great Britain)
WWVB, 60 kHz (Fort Collins, USA)
France Inter, 162 kHz (TDF, Allouis, France)
Antenna and receiver :
Ferrite antenna built in within the casing. Sensitivity 0.01 mV/m, bandwidth 10 Hz. (France Inter: see specifications.)
Receiver delay : 30 ms with respect to absolute time
(typical average value depending on signal strength and noise level).
Power supply :
Model "C-LOOP" : power taken from the current-loop.
Model OPEN and OPTIMA : Built-in lithium battery, 20 years of operation.
Other Models : External DC Power.
Output signal :
Model "C-LOOP" : the demodulated and detected time signal is delivered on a serial 2-wire current-loop output
(interchangeable polarity). The seconds pulses are represented by 20 mA current pulses.
Voltage to be applied : min. 7 V, max. 50 Volts.
Model "OPEN" : serial 2-wire open collector output; current drain max. 100 mA.
Model "OPTIMA" : additional opto-coupler for galvanic separation. Recommended connection :
apply 5 volts across 10 kOhm or 24 Volts across 47 kOhm.
Display :
Pilot lamp (LED) for radio signal check.
Acoustic signal :
Model "C-LOOP" : optional earphone for radio signal check.
Operating temperature :
-30 ... +70 degrees centigrade (France Inter : reception between -15 and +50 degrees).
Connection :
Delivered with 2-wire cable, about 3 meters long. Cable terminals inside the casing.
Casing, dimensions :
Weatherproof Casing, IP65. Model "C-LOOP" : 120 x 80 x 55 mm.
Other models : 160 x 80 x 55 mm.
Installation :
Wall mounting with corner-plate. Allows orientation of antenna.
