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Equipment: Aktive Antennas xxx

Aktive antennas AAS xxx

The active antenna receives the amplitude modulated signals of the time code transmitters. The demodulated signals are available at an open drain output. The active antenna is a complete connectable receiver unit for the time code signal. It has an internal power stabilizer and is delivered in grey plastic casing suitable for wall installation.
The device has a round connector cable (grey; length = 2,50m) with a 3-pole stereo plug (3,5mm x 2,5mm).

Technical characteristics:

Parameters	Test conditions	Symbol	min	typ	max	Unit
Operating temperature range	V_cc =3V	T	0		50	⁰C
Power supply		U_B	3		12	V
Power consumption	V_cc =3V	I_cc		0,8		mA
Reception sensitivity	U_CC =3V	E		30	50	µV/m
Output current	U_CC =3V	I_OUT			2	mA

Models:

Engineering parameters	Type (ASS xxx)	Input signals	Notes
	AAS DCF 77,5	DCF 77 ; 77,5
	AAS MSF	MSF ; 60 kHz

constructive parameters

Intelligent active antenna IAA II xxx

The intelligen active antenna receives the amplitude modulated signals of the time code sender. The signals are decoded and processed by a microcontroller. The received time protocols can be output as a demodulated original signal, as a generated checked signal, or as a generated RS232 time information. The output signal is available as a voltage (3-wire system) or a current loop (2-wire system) one. The type of the output signal and its level are selected with a 4-pole DIL switch.
The device is able to evaluate and display the radio reception quality (s. embedded LED array) so that an optimal alignment of the antenna can be performed when installing the device.

Parameters	Symbols	min	typ	max	Unit
Operating temperature range*	T	-25		70	⁰C
Power supply	U_B	5		30	V
Power consumption	I_cc	5		30	V
Reception sensitivity **	E	10	30	50	µV/m
Output current	I_OUT			20	mA

Models:

Engineering parameters	Typ (IAA II xxx)	Input signals	Notes
	IAA II HT DCF	DCF 77 ; 77,5 kHz	Extended temperature range: -25°C - +70°C Enhanced sensitivity: 10 - 30 uV/m
	IAA II DCF	DCF 77 ; 77,5 kHz
	IAA II HBG	HBG ; 75 kHz

constructive parameters