ARTIKUL-P
Portable Automatic Direction Finder
Direction finding techniques and equipment are protected by the RF patents.
Purpose:
- Outdoor radio monitoring applications including:
- Automatic direction finding
- Panoramic spectrum analysis
- Radio signal parameter evaluation
- Radio signal recording and technical analysis
- Radio channel monitoring.

ARTIKUL-P Direction Finder disarranged for transportation
Typical configuration:
- Portable foldable antenna system with a built-in two-channel receiver
- Two-channel A/D processing unit
- Telescopic mast
- Antenna system and mast transportation tube
- Backpacks for transportation
- Control and display unit with SMO-PPK, SMO-STA, SMO-ASPD, SMO-KN Software Packages

ARTIKUL-P Direction Finder deployed for operation
Features:
- The distance between antenna systems and operator's location can be up to 80 m
- Operation at stops both standalone and as a part of Automated Spectrum Monitoring Systems (ARMADA, AREAL etc.) together with other technical means (when communication equipment is available).

ARTIKUL-P with communication equipment when operated as a part of DF network
Direction Finder Provides:
- Single- and multi-channel direction finding of radio signals with any modulation types and spectrum width
- Search and detection of radio emission, measurement of their parameters
- Recording of radio signals
- Panoramic spectrum analysis within the entire operating frequency range or within separate intervals under complicated electromagnetic conditions, detection of changes in ambient electromagnetic conditions
- Recording radio environment within a specified frequency range. This procedure can function within a long period and is based on amplitude/frequency/bearing/time coordinates, direction finder location and the absolute time at the time of saving
- Accumulation of data for further analysis in the postprocessing mode
- Creation of databases, their extension and comparing of the recorded data with the references in the database
- Displaying the emitter bearing and localization of the emitter on the electronic map
Antenna system of the direction finder comprises two arrays: basic and additional ones. The basic array consists of nine flat antenna elements mounted on foldable cross-arms. The additional array extends frequency range up to 3 GHz. It comprises seven antenna elements installed inside protective radome. Antenna system contains integrated satellite navigation module, which provides for finding orientation and coordinates of antenna system.
Technical Specifications
Operating frequency range | 25 - 3000 MHz |
Intermodulation free dynamic range (3rd and 2nd order) | 75 dB, min |
Panoramic spectrum analysis rate | up to 3 500 MHz/s |
DF method | Correlative interferometer |
Operating azimuth range | 0° - 360° |
Processed emitter signal spectrum width | Arbitrary |
DF field sensitivity | 6 µV/m (typical 2 µV/m) |
Instrument accuracy (RMS) | 2° |
Multi-channel direction finding rate | up to 150 MHz/s |
Single-channel direction finding rate | 30 bearing/s |
Total weight of equipment and accessories | max. 65 kg |
Required number of operators for transportation | up to 3 |
Weight of the antenna system (with cased mast) | max. 24 kg |
Weight of the backpack with spare parts and accessories | max. 32 kg |
Weight of power generator with reeled 20 m cable | max. 18 kg |
Time of deployment by two operators | max. 15 minutes |
Deployment site preparation | Not required |