The DF-A0243 is a wideband Watson Watt DF antenna intended for on-the-move direction finding from 20 to 9000 MHz.


Frequency MHz 20 - 9000
Power Handling W
Mass (kg) < 2.5
Size (mm) 0.9
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The DF-A0243 is a wideband mobile Watson Watt DF antenna intended for on-the-move direction finding from 20 to 9000 MHz.

The antenna array is implemented as a three-band vertical stack with the low frequency band enhanced with patented hybrid loop-Adcock technology to provide improved sensitivity vs traditional designs of the same form factor.

The antenna presents patterns suitable for the Watson Watt estimation method, as well as 3-channel correlative
DF. Band switching is done via an integrated switch and control system. External and internal RF chain calibration
is accommodated and a compass and active GPS antenna are also integrated in the antenna.

Spring-mounting is directly via the base-mounted MIL DTL 38999 connector interface. An optional isolating extension mast is also available for use on vehicles or marine platforms. This provides improved performance over
simply mounting the antenna directly to the structures.

The design is ideal for shared platform applications and flexible deployment scenarios, e.g. a boat-mounted
antenna can be detached and transitioned to an on-the-march system and a vehicle system as needed.