Transportable and Portable Means for Radio Monitoring


Transportable Automated Direction Finder


  • Outdoor radio monitoring applications including:
    • Direction finding
    • Panoramic spectrum analysis
    • Field strength evaluation
    • Radio signal parameter evaluation
    • Radio signal recording and technical analysis
    • Radio channel monitoring.

Typical Configuration:

  • Two-channel panoramic radio receiver in a body designed for mounting on a mast
  • AS-HP5 Antenna System for automatic direction finding within 20 – 3000 MHz, with integrated navigation equipment
  • Tripod (mast) for direction finding antenna system mounting when operated at temporary workstations
  • Power supply and communication unit
  • Control and display unit with SMO-PPK, SMO-STA, SMO-ASPD, SMO-KN Software Packages

ARTIKUL-MT Direction Finder

ARTIKUL-MT Direction Finder


  • AS-HP-HF Antenna System for automatic direction finding within 1.5 – 30 MHz, with integrated navigation equipment
  • AS-HP2 Antenna System for automatic direction finding within 3 – 8 GHz, with integrated navigation equipment
  • High-stable external reference generator
  • Vehicle luggage box with fasteners to mount DF antenna systems
  • Communication and data transmission equipment
  • SMO-BS Software Packages for Wireless Data Communication System Analysis: BS 3GPP (GSM, UMTS, LTE), BS CDMA (IS-95, cdma2000, EV-DO), BS TETRA, BS TRUNK (DMR, APCO P25), BS Wi-Fi, BS WiMAX.


  • Operation at stops and while moving (when the equipment is installed on a vehicle)
  • Joint operation of several direction finders (when communication equipment is available), e.g. as a part of Automated Spectrum Monitoring Systems (ARMADA, AREAL etc.)
  • To prevent overloading in complicated electromagnetic environment, digital radio receiver includes additional analogue path with 500 kHz bandwidth
  • The distance between antenna systems and operator's location can be up to 100 m
  • Power supply from portable electro generator, external AC mains or vehicle on-board DC.

Direction Finder Provides:

  • Search for emissions, their parameters evaluation, technical analysis and comparison with the database
  • Creation of databases, their extension and comparing of the recorded data with the references in the database
  • Field strength evaluation
  • Recording of the radio signal within wide bandwidth
  • 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, unit location and the absolute time at the time of saving
  • Single- and multi-channel direction finding of radio signals with any modulation types and spectrum width
  • Demodulated signals playback
  • Accumulation of data for further analysis in the post-processing mode, simultaneous recording of demodulated signals and their service parameters (frequency, time, signal level, etc.)
  • Displaying bearing to a radio emission source in electronic map
  • Check of frequency/time parameters and service information of base station of modern communication and data transmission systems (GSM, IS-95, cdma2000, EV-DO, UMTS, TETRA, DECT, LTE, Wi-Fi, DMR, APCO P25).

Basic Technical Specifications of Direction Finder in Complete Configuration

Panoramic Spectrum Analysis
Operating frequency range (replaceable antenna systems) 1.5 – 8000 MHz
Panoramic spectrum analysis rate Up to 20 GHz/s
Intermodulation free dynamic range (3rd and 2nd order) 75 dB, min
Maximum simultaneous bandwidth 24 MHz
Single-Channel and Multi-Channel Direction Finding
Operating azimuth range 0° - 360°
Operating frequency range (replaceable antenna systems) 1.5 – 8000 MHz
Multi-channel direction finding rate up to 2 500 MHz/s
Simultaneous DF bandwidth
within 1.5-5 MHz range 1 MHz
within 5-20 MHz range 2 MHz
within 20-110 MHz range 5 MHz
within 110-220 MHz range 10 MHz
within 220-8000 MHz range 24 MHz
Processed single signal minimum duration 10 ms
DF sensitivity, max
within 1.5-20 MHz range (AS-HP-HF) 15 V/m (typical 9 V/m)
within 20-110 MHz range (AS-HP5) 10 V/m (typical 6 V/m)
within 110-3000 MHz range (AS-HP5) 8 V/m (typical 4 V/m)
within 3000-8000 MHz range (AS-HP2) 15 V/m (typical 13 V/m)
Instrument DF accuracy (RMS), max.
within 1.5-20 MHz range (AS-HP-HF) 5
within 20-110 MHz range (AS-HP5) 5
within 110-3000 MHz range (AS-HP5) 2.5
within 3000-8000 MHz range (AS-HP2) 5
Processed signal spectrum width arbitrary within simultaneous DF bandwidth
Recording, Technical Analysis, Radio Channel Monitoring
Max. recording bandwidth 40 MHz
Types of recorded data radio signal sampling (I/Q), bearing, demodulated signals, spectrograms, time
General Parameters
Power consumption 120 W, max.
Dimensions of receiving and processing unit (diameter x height) 470 x 210 mm, max.
Weight of Receiving and Processing Unit 10 kg, max
Antenna system dimensions (diameter x height)
AS-HP5 580 × 300 mm
AS-HP-HF 465 × 170 mm
AS-HP2 350 × 190 mm
Weight of antenna system (without mast) max. 8.5 kg
Height of folded unit 1100 mm, max.
Operating temperature range -40C +50C

Typical curves of RMS and DF sensitivity vs. frequency are the same as curves given for antenna systems of ARTIKUL-H1 Manpack Direction Finder.

Transportable and Portable Means for Radio Monitoring