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  • Description
  • Technical Data
  • Documentation
  • Drivers
  • Available accessories

The reliable and budget priced Clock77 radio clock supplies the atomclock exact time over the ISA bus. A switching from and to summer time is not nescessary.

The accuracy of the radio clock's time is +/- 50 ms. Windows 95 / 98 / ME / NT 4.x / 2000 / XP drivers (server and workstation) are available. For Windows XP / 2000 / NT 4.x the Clock77 software is executed as "NT service".

Therefore, the time will be updated even when no user is logged in.

We added a graphical monitor program which allows to check the positioning and the quality of the received signal. This is nescessery for adjusting the clock in distorted or large distance locations. The clock incorporates a highly intelligent algorithm for the dectection of faulty times and the correction of them.

You can distribute the received time easily to other clients in the network. The manual describes how to do this.

The new enhanced antenna now gives a larger covered area and has a built in LED for function control.

The QUANCOM drivers need very little processing time and save processor resources. You will not detect any essential system impact.

See also:

CLOCK77/PCI - PCI DCF-77 radio clock on a PCI PC card

•General I/O
I/O module: GAL20V8

with approx. 5 m. cable
operating temperature of the clock77 antenna -5...55 °C

1D0, 330, 3B0, 3E0

•Default I/O


•Temperature Range
5...50 °C

Manual for QUANCOM CLOCK77
This is the PDF manual for all QUANCOM CLOCK77 atomic clocks. This includes the CLOCK77/PCI, CLOCK77/USB CLOCK77/PCI-EXP and the CLOCK77/ISA.
[Download 1.9MB]

CLOCK/77 Windows 7/VISTA/XP/2000/ Windows 2003 Server Driver Software für CLOCK77 Version 2.2 für 32 Bit Systeme (USB/PCI/PCI-EXPRESS/ISA)
unter Windows Windows 7 / VISTA / XP / 2000 / 2003 Server [Download 6610.5KB]

CLOCK/77 Windows 7/VISTA/XP/2000/ Server 2003/2008 64 Bit Driver Software für CLOCK77 Version 2.2 für 64 Bit Systeme (USB/PCI/PCI-EXPRESS/ISA)
unter Windows Windows 7 / VISTA / XP / 2000 / Server 2003 / 2008 [Download 6692KB]

CLOCK/77 98SE Driver Driver for Windows 98SE
Software for CLOCK77 Windows 98SE in German and English Language [Download 13025.8KB]

CLOCK/77 VISTA/XP/2000/ Windows 2003 Server Driver Driver for CLOCK77 Version 2.1 (USB/PCI/ISA)
Software for Windows VISTA / XP / 2000 / 2003 Server in German and English [Download 9319.5KB]

WinNT Driver Driver for Windows NT

Software for CLOCK77 (PCI- and ISA-Version) Windows NT 4.0 in German and English Language [Download 720.2KB]

98/95 Driver Driver for Windows 98 / 95

Windows 98 / 95 Software for CLOCK77 (PCI and ISA) [Download 661.8KB]

DOS/TSR Background program for CLOCK77(PCI/ISA)

for Win 3.1x , DOS ,Year 2000 ready [Download 7.4KB]

Extension cable for the QUANCOM CLOCK77/PCI and CLOCK77/ISA

Amplifier for PC-radioclocks Clock77/PCI and Clock77/ISA

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127.60 Euro
(incl. Taxes)

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Updated on 13.6.2015 by Michael Reimer