Radiomonitoring & Radiolocation R&S®DDF007 Portable Direction Finder Full range of functions in a handheld format

R&S®DDF007 Portable Direction Finder At a glance The R&S®DDF007 portable direction finder has an integrated, fast wideband receiver that covers a very wide frequency range. The battery-operated unit relies on high-precision DF methods. The R&S®DDF007 is used in conjunction with compact DF antennas, making it ideal for all applications that call for a powerful yet handy direction finder. The DF system consists of the R&S®DDF007 portable direction finder and a compact DF antenna (R&S®ADD107, R&S®ADD207 or R&S®ADD307). The DF antennas come with an integrated GPS module, an electronic compass and...

R&S®DDF007 Portable Direction Finder Benefits and key features I ntegrated, fast wideband receiver ❙❙ Detailed IF spectrum display at high bandwidths ❙❙ Fast spectrum monitoring ❙❙ Demodulation of wideband signals ❙❙ Signal analysis in receive mode (option) ❙❙ Polychrome spectrum to distinguish superimposed, pulsed signals (option) ❙❙ Occupied bandwidth measurement ▷▷ page 4 High-precision DF method ❙❙ Correlative interferometer DF method ❙❙ Watson-Watt DF method (for R&S®ADD107 below 173 MHz) ▷▷ page 5 Integrated map display (option) ❙❙ Integration of OpenStreetMap (OSM) digital maps ❙❙ Triangulation-based...

Integrated, fast wideband receiver Detailed IF spectrum display at high bandwidths In the IF panorama mode, the R&S®DDF007 fully displays signals up to a bandwidth of 10 MHz. The waterfall display can additionally be activated to visualize signal behavior versus time. The IF panorama mode provides detailed signal analysis with high resolution. Even events of extremely short durations are reliably detected in this mode. Fast spectrum monitoring The R&S®DDF007 can be equipped with the R &S®DDF007-PS panorama scan option. This enables fast scanning at speeds of up to 2 GHz/s to obtain a quick overview...

Correlative interferometer DF method The R&S®DDF007 uses the correlative interferometer DF method in conjunction with an R&S®ADDx07 compact DF antenna. In contrast to other direction finders using simple amplitude comparison methods, the R&S®DDF007 offers significantly higher DF accuracy up to class A in line with ITU recommendations. Single-channel interferometer DF method The correlative interferometer DF method is based on measuring the phase differences between the reference antenna element and the other elements of a DF antenna. To measure the phase angle φ between the signals of two antenna...

Integrated map display (option) Integration of OpenStreetMap (OSM) digital maps The R&S®DDF007-GPS option makes it possible to display DF and radiolocation results in OSM maps on the R&S®DDF007. Users can download these maps from the Internet using the R&S®OpenStreetMapWizard ( SMWizard) included with the R&S®DDF007. The files O can then be copied to the SD card of the R&S®DDF007 to make them available for field use. The R&S®DDF007 compares its current GPS position with the available map data and automatically selects the appropriate map. Triangulation-based radiolocation In addition to visualizing...

All details visible in DF mode In order to obtain stable and accurate DF results, a sufficiently wide DF bandwidth is required, i.e. the DF bandwidth should be similar to the signal bandwidth. Typically, this results in a coarse spectrum resolution. In many applications, a much finer channel resolution in the IF spectrum is required in order to see details in the spectrum that are not visible otherwise. Now the R&S®DDF007 offers both: an IF spectrum with fine resolution for spectrum display and a DF spectrum with coarse resolution for direction finding (see screenshot). Both resolutions can be...

Control and system software R&S®DF7‑CTL control software ❙❙ Control of the R&S®DDF007 from a PC or laptop ❙❙ Included with the R&S®DDF007 Use of the R&S®DF7-CTL software requires the R&S®DDF007-RC remote control option. R&S®RAMON software components (options) ❙❙ Remote control of R&S®DDF007 DF stations ❙❙ Enhanced map display functions ❙❙ Integration of application-specific maps ❙❙ Intelligent, automatic direction finding using the R&S®MobileLocator software (included in the R&S®RA-LOC option) ❙❙ Integration of the R&S®DDF007 into radiolocation networks ❙❙ Task and result management

Innovative, compact DF antennas and accessories Multi-element DF antennas The R&S®ADD107 and R&S®ADD207 compact DF antennas feature an exceptionally large number of antenna elements in the frequency range above 173 MHz. They use eight antenna elements in this range, while commercially available DF antennas typically have only four. The R&S®ADD107 and R&S®ADD207 compact DF antennas therefore set new standards in their class with respect to DF accuracy and sensitivity. For maximum DF accuracy and sensitivity in portable applications, the R&S®DDF007 can be combined with the R&S®ADD307 collapsible...

Integrated GPS module and electronic compass Lightweight wooden tripod (option) The R&S®ADD107 and R&S®ADD207 compact DF antennas have an integrated GPS module including a GPS antenna that continuously determines the current location of the DF antenna. The antennas also contain an electronic compass that continuously measures the antenna's alignment to magnetic north to ensure that the DF values displayed on a map are accurately referenced to north. The electronic compass is used when the R&S®ADD107 or R&S®ADD207 is mounted on a tripod for stationary operation. The R&S®ADD17XZ6 wooden tripod...

Locating a transmitter at close range For homing in on a transmitter, such as pinpointing individual rooms within a building, instead of the DF antenna the R&S®HE400 handheld directional antenna can be connected to the R&S®DDF007. Frequency range extendable up to 18 GHz The R&S®HF907DC SHF DF antenna with downconverter extends the receiving frequency range of the portable direction finder up to 18 GHz. The user can then take advantage of the rich feature set of the R&S®DDF007 up to 18 GHz, for example to detect interference caused by directional radio link communications. The R&S®HE400 handheld...