bandwidth with R&S®DDF550DDCE and R&S®CA120FFPAutomatic detection of fixed frequency and burst signals with R&S®DDF550-HRP and R&S®CA120DSCAutomatic detection of frequency agile short-time signals with R&S®DDF550-STSpecifications Models Frequency range base unit 20 MHz to 6 GHz base unit with R&S® DDF550-HF option2) 300 kHz to 6 GHz SpecificationsFrequency range   base unit 20 MHz to 6 GHz   with

Rohde & Schwarz direction finders for land-based, airborne, or shipboard detect any signal from 300 kHz to 3 GHz in practically no time.

The fast R&S®DDF550 wideband direction finder offers outstanding realtime bandwidth and DF scan speed as well as high DF accuracy, sensitivity and immunity to reflections. The unit has compact dimensions and is optionally available as a DC-powered model, which makes it ideal for mobile applications.

In 2018, the German Federal Network Agency (BNetzA) completed the modernization of its nationwide VHF/UHF direction finder network. Station by station, the authority had replaced legacy direction finders with state-of-the-art equipment. In total, the BNetzA acquired 34 R&S®DDF550 wideband direction finders, together with a comprehensive set of accessories and services, and is now well prepared to handle future radio signals.

Specifications The R&S® RA-CM continuous monitoring software currently supports the following devices/components: Digital direction finders R&S® DDF0xA/E, R&S® DDF39x, R&S® DDF0xM, R&S® DDF04E, R&S® DDF255, R&S® DDF19x, R&S® DDF205, R&S® DDF550 R&S® AMMOS GX400 R&S® GX400VC, R&S® GX400VD, R&S® EM010, R&S® EM050, R&S® AMMOS® GX401BP, R&S® AMMOS® GX405BP, R&S® AMMOS® GX401EM, R&S® GX420/R&S® AMMOS

DWR150 Digital Wideband Recorder - digital wideband recorder for recording and replaying of I/Q and result data with up to 125 MHz bandwidth

DWR100 Digital Wideband Recorder - digital wideband recorder for recording and replaying of I/Q and result data with up to 40 MHz bandwidth

® ADD207 approx. 6 kg Operating temperature range   0 °C to +50 °C Storage temperature range   –20 °C to +60 °C Power supply AC, with external power supply unit, DC 100 V to 240 V AC, 50 / 60 Hz, 1 A 20 V to 30 V DC, 4 A 24 V DC (nom.)1) In addition, R&S®Mobile Locator with R&S®MapView instead of the web-based GUI, can be used with all direction finders such as the R&S®DDF205, R&S®DDF255 and R&S®DDF550.2

The R&S®ADDx DF antennas are decisive for the high efficiency of the Rohde & Schwarz multichannel direction finders because they offer unique technical innovations. The wide product range covers stationary, transportable and mobile applications. In development, the focus was on the lightning protection concept of the antennas and their immunity to harsh ambient conditions.

Protective measures can only be taken after a threat is detected. To effectively counter the threat, early warning is critical – every second counts. When R&S®ARDRONIS detects commercial drone activity, it automatically classifies the type of drone signal, determines the direction of the drone and its pilot, and (on command) disrupts the radio control link to prevent the drone from reaching its target.