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Test devices / Time code generator ZZGxxx

Time code generator ZZG5

The time code generator ZZG5 generates the digital and HF-modulated time code signals DCF77, HBG, MSF, WWVB and JJY. The accuracy of the time clock can be enhanced using an external GPS module as accessory.

Technical characteristics:

Parameters	Value	Conditions
Operating temperature range	+10°C-+35°C	Relative air humidity: 0% -90%, not condensing
Power supply	12V=/1.25A	DC adapter: 100 – 300V~ / 47 –63Hz / 400mA
Output voltage HF signal Digital signal(1PPS) Clockfor second (Mod)	1.00mV-9.99V eff. about 3V,rectangular about 5V,rectangular	over a 50 Ohm output resistance ; divided in 7 ranges, decimal and stepwise settable as 3-digit number Load resistance ³ 10kOhm Load resistance ³10kOhm
Deviation of the generated output voltage from the displayed value	± 2%
Time clock and frequency error	± 0,5ppm,i.e. ± 43ms/day
Time clock and frequency error (GPS) with a GPS receiver support	For a short time: ± 0,1ppm 0 ppm	at least 30 minute operating time after 30 minute operating time
Accuracy of the modulation pulse length	± 0.5ms
Accuracy of the pulse edge at the beginning of a second	± 75us	in GPS mode
Data retention time ofthe back-up battery	5 years	for off times over 2 days
Power consumption	about 6 watt

Engineering parameters	Typ (ZZG x)	Notes
	ZZG5
	ZZG6

mechanical drawing

Time code generator ZZG6

The Time Signal Generator ZZG6 is HKW’s first signal generator with an USB-interface. Of course the ZZG6 offers the well known features and setting-opportunities like its little brother “ZZG5”. It simulates different time code transmitters and includes a noise generator. The generated time signal can be broadcasted via a connected antenna or it can be connected directly to the “unit under test”. But, based on the USB-interface the ZZG6 now allows additional, totally new and very useful features like:

·The ZZG6 can be connected to any computer with USB-interface.

·Installing the supplied user software, called “TX-Monitor” and attached to the ZZG6-unit, the signal generator can be totally remote controlled by the connected PC. Via its special operation window onto the PC-monitor the user-software allows to make all settings for the ZZG6 operation mode as well as for all characteristic parameters of the generated time code. Set values of ZZG6-parameters and the generated time-signal (output-signal) can be visualized on the PC-monitor.

·It represents a very useful tool for each software-engineer working on RC time pieces and it is very easy to operate.

·Updates of the ZZG6-firmware can be easily made by use of the USB-interface without additional Flash-Programming Tools.

·In a future step the combination of PC and ZZG6 will allow the preparation of fully automated test-procedures during the development or production of radio controlled watches and/or clocks.