The ABB FAD/A 1.1 DCF Antenna (order code FAD/A1.1) is the surface-mounted DCF77 radio antenna for the ABB FW/S 8.2.1 radio time switch. It receives the Frankfurt DCF77 time signal within roughly 1000 km of the transmitter.

For worldwide GPS time sync on the same host, use FAG/A1.2.

Key Features

• DCF77 reception: Official long-wave time signal for Central European coverage.
• For FW/S 8.2.1: Dedicated accessory antenna for the radio time switch.
• Surface mount: Outdoor-capable placement for a clear radio path.
• Regional alternative to GPS: Prefer DCF when the site is within DCF77 range.

At a Glance

Specification	Detail
Product type	DCF77 antenna for radio time switch
Order code	FAD/A1.1
Product ID	2CDG120040R0011
Compatible host	FW/S 8.2.1
Coverage	Approx. 1000 km around Frankfurt (DCF77)
Mounting	Surface-mounted

Installation instructions, drawings, and declarations are under Downloads.

Applications

• Central Europe sites: Accurate clock sync without GPS sky view.
• Building timebase: Feed FW/S 8.2.1 for KNX time/date distribution.
• Outside DCF range: Specify FAG/A1.2 GPS antenna instead.

Installation Notes

Mount the antenna with a clear radio path (avoid heavy metal shielding). Connect to FW/S 8.2.1 per the installation instructions. Orient and cable-length limits are documented in Downloads.