DF281B

The DF281B is a tactical, man-portable Direction Finding (DF) antenna system with high sensitivity. The DF281B is used with DRT receivers to locate the source emitters for signals in the 600 MHz to 3000 MHz frequency range. Commutated DF is the standard method for most signals of interest, but this system can also perform Instantaneous DF (IDF) on short-duration signals.