PLATH AG

Acquisition products

ASM 4221 HF Antenna Switch Matrix

The ASM 4221 is an antenna switch matrix for the frequency range from 1 to 30 MHz. Thanks to its non-blocking circuitry several outputs can be connected to one input. Thereby, the signal path is loss-free.

  • Antenna switch matrix with up to 32 in- and outputs
  • Non-blocking switching
  • Modular, scalable architecture

DFA 2430 Active VHF / UHF Direction Finding Antenna

20 to 6000 MHz

Light weight semi-mobile direction finding antenna

The DFA 2430 is a highly sensitive active direction finding antenna for the mobile and semi-mobile use in the frequency range from 20 MHz to 6000 MHz. It is made up of four sub-systems, which have optimum size, weight and energy consumption characteristics to facilitate flexibility for the mobile use.

Since it uses the 7-fold correlative interferometer procedure for direction finding, this sensor system is particularly resistant to multipath propagation and polarisation changes. Besides, integrated omni-directional antennas enable monitoring tasks over the entire frequency range. A compass is already built in.

DFA 2440 Active VHF / UHF Direction Finding Antenna

20 to 3000 MHz

Mobile flexibilty and excellent direction finding results at the same time

The active DFA 2440 can be used in the frequency range from 20 to 3000 MHz. The antenna has been specially developed for compact operational use on the top of a vehicle. Its flat design and low weight of less than 30 kg permits an installation even on lighter vehicles.

The DFA 2440 consists of two direction finding antenna systems, which are integrated compactly with regard to size, height, weight and power consumption. The active DFA 2440 antenna is based on the correlative interferometer direction finding method. The system is particularly resistant to multipath scattering. Besides, integrated omni-directional antennas enable monitoring tasks over the entire frequency range.

DFA 2450 Maritime Direction Finding Antenna

The passive DFA 2450 maritime antenna has been specially developed for shipborne applications on the highest position onboard.

The DFA 2450 has a high bearing accuracy and allows installations on any kind of mast.

It is a lightweight passive 7 element direction finding antenna and uses the correlative interferometer direction finding method. The sensor system is particularly resistant to multi-path scattering and widely insensitive to polarisation. The chassis is made of UV-resistant plastics (ABS laminate).

The antenna can be extended with HF direction finding capabilities. In this case, an additional HF antenna subsystem for the frequency range from 1 to 30 MHz is integrated into the pipe below the DFA 2450 V / UHF subsystem.

DFA 2450 R Maritime Direction Finding Antenna and RADAR ESM System

20 to 18000 MHz

Highly integrated C-ESM antenna and R-ESM system

The passive DFA 2450 R maritime antenna has been specially developed for shipborne applications on the highest position onboard. It has a high bearing accuracy and allows installations on any kind of mast.

The C-ESM part of the DFA 2450 R is a lightweight passive 7-channel direction finding antenna and can be used in the frequency range from 20 to 3000 MHz. The PHOBOS R-ESM part of the DFA 2450 R, detects radar signals, digitalises them and then establishes the associated parameters. Due to the realtime bandwidths from 2 to 18 GHz, this is a wide open receiving system with a considerable detection probability.

DFA 2455 Direction Finding Antenna

20 to 3000 MHz

Consistently high-precision and sensitive direction finding antenna

The exceptional high bearing sensitivity is achieved with the simultaneous use of the seven channels of the PLATH direction finder.

The DFA 2455 is a seven channel direction finding antenna that supports the ingenious designed correlative interferometer direction method over the complete range from 20 to 3000 MHz. In combination with the chosen layout particular for the lower frequencies this leads to an exceptional high bearing sensitivity.

The antenna is designed for stationary applications on high masts or rooftops.

DFA 5080 Active U-Adcock HF Direction Finding Antenna

The DFA 5080 is a high-precision radio direction finding antenna for electromagnetic sky and ground waves in the frequency range from 0.5 to 30 MHz.

With an installation time of less than 30 minutes, this system is well-suited for semi-mobile use. Its sensitivity and bearing accuracy are comparable to stationary systems and its small dimensions enable a camouflaged use.

The DFA 5080 is available either as a single circular array or as a dual concentric array for increased accuracy in the entire frequency range.

A built-in test equipment detects faulty connection and reports through SNMP via a LAN interface. An extensive self-test pinpoints any malfunction and can be remotely controlled through a web interface.

DFM 4221 HF Direction Finding Antenna Multicoupler

The DFM 4221 is a direction finding antenna multicoupler for the frequency range from 1 to 30 MHz and suited for connecting up to eight direction finders to one direction finding antenna.

The different channels are balanced with respect to amplitudes and phases. This ensures an unaffected bearing accuracy.

The large dynamic range of the amplifier and passive power distribution ensures high linearity within small ground noise and thus features excellent HF-qualities.

DFP 2400 VHF / UHF Radio Direction Finder

The DFP 2400 combines constant coherent bandwidth with variable frequency resolution and a high sensitivity of -137 dBm at the same time. As a unique feature, even with the frequency resolution of 500 Hz the coherent bandwidth is still 20 MHz.

The outstanding dynamic range sensitivity and low noise figure allow intercepting weak signals from great distances. It is able to calculate DF-results even in scanning mode with 40 GHz/s.

The enormous processing capability of 20 Mio. channels/s makes sure, that DF-results are calculated for all signals, even in high density frequency bands like tactical radio. The 7-channel interferometer principle is realised from the antennas to the receivers so that no signal is lost due to antenna switching or summarizing of several processed samples. In a non-scanning mode it can detect all common hopping communication signals. The extremely high accuracy allows the location of emitters even with two DF-sets.

DFP 2410 VHF / UHF Radio Direction Finder

The DFP 2410 combines constant coherent bandwidth with variable frequency resolution and a high sensitivity of -137 at the same time. As a unique feature, even with the frequency resolution of 500 Hz the coherent bandwidth is still 9.99 MHz.

The outstanding dynamic range sensitivity and low noise figure allow intercepting weak signals from great distances. It is able to calculate DF-results even in scanning mode with 20 GHz/s. The enormous processing capability of 10 Mio. channels/s makes sure, that DF-results are calculated to all signals, even in high density frequency bands like tactical radio. The 7-channel interferometer principle is realised from the antennas to the receivers so that no signal is lost due to antenna switching or summarizing of several processed samples. In a non-scanning mode it can detect all common hopping communication signals. The extremely high accuracy allows the location of emitters even with two DF -sets.

DFP 5050 HF Narrowband Direction Finder

The DFP 5050 is a digital radio direction finder for the frequency range from 300 kHz to 30 MHz with an optional extension downwards to 10 kHz. Thanks to a spectral resolution down to 31.24 Hz it features high bearing sensitivity and large dynamic range which submits a clear separation of adjacent and overlapping signals.

Frequency and time diversity functions contribute to enhance bearing accuracy. Beside conventional bearing results of a narrowband DF receiver (bearing ellipsis), it offers the bearing and amplitude value of a Fast-Fourier-Transformation (FFT) direction finder. Covered signals can be detected by direction-selective search facility. Spectral data, bearing ellipses and audio are depicted synchronously by the PLATH operating and display software WinDF.

The DFP 5050 can be used as a stand alone intelligence direction finder and – being remote controlled – it can be integrated in intelligence systems.

DFP 5130 HF Radio direction finder

The DFP 5130 is a digital radio direction finder applicable manually or as a part of automatic HF search and direction finding systems with frequencies between 0.5 - 30 MHz.

Seven high-pass and seven low-pass filters are combined to ensure an extraordinary high dynamic range and intermodulation suppression at low noise figures.

The output of bearing and frequency spectrums in sub-bands facilitates the monitoring of frequencies across the 16 HF range without scanning.

DFP 5135 HF Radio direction finder

The DFP 5135 was designed as an answer to the ever growing need for fully automated HF COMINT systems.

Through decades of cooperation with the most demanding customers, PLATH grasps the true challenge of HF interception.

DFing each and every signal in the range from 0.5 to 30 MHz, the DFP 5135 is the ultimate direction finder. Its large dynamic range makes the DFP 5135 unaffected by spurious and blocking.

FAA 321 Active HF Ferrite Antenna

The FAA 321 is an active ferrite antenna, which can be used while moving. It features high bearing accuracy for ground waves within the frequency range from 0.5 to 30 MHz.

By using active circuits, it attains a high degree of sensitivity. Simultaneously the power consumption is low which facilitates battery operation.

Special requirements with respect to the dimensions, weight and mobility were the decisive criteria while developing this ferrite antenna. Even if there is less space, it can be easily installed on any platform and camouflaged.

MAN 5180 HF Monitoring Antenna

1 to 30 MHz

Stay flexible

The MAN 5180 is an active monitoring antenna for electromagnetic sky and ground waves in the frequency range from 1 to 30 MHz. Beside stationary use, this antenna is also well suited for semi-mobile operations since the required installation time is less than 10 minutes.

This antenna features high sensitivity and linearity, as well as low signal intermodulations. Moreover a ground network ensures high performance even on low soil conductivity.

SIR 2110 VHF / UHF Digital Broadband Tuner

20 to 3000 MHz

Compact high performance wideband receiver for search and interception

The SIR 2110 covers the V/UHF frequency range from 20 to 3000 MHz. Its modular and flexible design allows various configurations to incorporate different scenarios from manual interception to automatic communication intelligence ( COMINT ).

Additionally to the 20 MHz broadband I/Q data up to four 50 kHz wide DDC channels can be streamed to different addresses. The SIR 2110 provides an excellent dynamic range (IMFDR) of > 80 dB.

SIR 5110 HF Digital Broadband Tuner

The SIR 5110, with an instantaneous analogue bandwidth of 29.5 MHz, covers the frequency range from 0.5 to 30 MHz. Its modular and flexible design allows various configurations to incorporate different mission scenarios from manual interception to automatic communication intelligence ( COMINT ).

The SIR 5110 sets the benchmark for new generation HF search and interception receivers worldwide.

Multiple bands of interest can be covered simultaneously by freely selecting 16 digital subbands within the entire HF range. The virtual receiver concept allows the substitiusion of up to 120 narrow band channels in the selected frequency range.

SIR 5115 HF Digital Broadband Tuner

The HF broadband receiver SIR 5115, covering the frequency range from 0.5 to 30 MHz, represents the benchmark of HF signal interception. It intercepts every signal simultaneously in the complete HF range.

Offering full high-resolution coverage and multiple virtual narrowband receivers, the SIR 5115 replaces entire banks of single channel receivers without compromising blocking, dynamic range or intermodulation. This means having fewer receivers produce more signals with less error.

U 646 16/8-Element U-Adcock HF DF Antenna

The U 646 antenna is a highly sensitive antenna system for electromagnetic space and ground waves with high bearing accuracy for the frequency range from 1MHz to 30 MHz.

The self-supporting antenna masts guarantee a space-saving installation without the need for suspension ropes.

Even on grounds that are bad conductors, the antenna system operates reliably via in-built ground networks on any antenna mast.

The frequency range of this antenna can be extended to a range of 10 KHz to 1 MHz with the quadraloop antenna, VKR 796.

U 656 16/8-Element U-Adcock HF DF Antenna

1 to 30 MHz

Very high sensitive DF antenna for sky and ground waves

The self-supporting masts are fit to the ground without concrete foundation. No suspension ropes are necessary for installation and operation. This guarantees a space-saving installation.

The U 656 DF antenna has a very good performance even on grounds that are bad conductors. Each antenna mast has a in-built ground network.

The system can be expanded by an in-built testing device (Antenna Test Equipment ATE) which ensures flawless functioning.

WIN DF DF-Operating and Display Software

The software WinDF is a control and visualisation application for all PLATH direction finder processors (DFP).

With the software, the direction finding receiver is commanded manually. The direction finding results are displayed using spectrum, spectrogram and azimuth display.

WinDF features live audio, a station list, overview and zoom display and the possibility to save the individual GUI setup.

WinDF is independent of the frequency range and the bandwidth of the direction finding receiver employed and also of the method employed for the direction finding process.