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probes / sigint / frl-D408 flexible radio link demodulator

FRL-D408 is a universal high rate hardware demodulator, with different available API to be downloaded to receive high data rate radio transmissions.
It comes as a unique 19"/2U rack that integrates one FPGA boards ready to be loaded with the adequate API, one of the applications is the receiving and decoding of radio frame.
It works with a 70, 140 or 160 MHz IF (factory option) with a –30 to 0 dBm power level, and accepts input signal up to 60 MHz bandwidth and up to 40 Msps baud rate.
It processes demodulation with channel equalization. It is also able to provide customised outputs through out its proprietary numeric link which is fully
compatible with our ENRLB-48 recorder and our FRL-D408 demultiplexer unit. This demodulator can inter operate with AST Demultiplexer or equivalent thanks to our FRL-CC40 cross connect device.

Main Features
- 70, 140 or 160 MHz –30 to 0 dBm IF Input (factory option)
- 10 MHz 0 dBm reference I/O
- Modulation: BPSK, DBPSK, QPSK, DQPSK, 8-PSK, 8-DPSK, OQPSK, 16- QAM, 32-QAM, 64-QAM GMSK, 2-FSK
- Digital down conversion with AGC
- Timing and carry recovery capabilities
- 64 taps fractionally spaced CMA/DD equalizer
- Ethernet TCP/IP remote controlled operations via intuitive GUI
- 128 Mo snapshot memory to interface CPU based software algorithms for waveform recognition
- Connectable with our product ENRLB-48 for high rate data recording or generation.
- Built In Test capabilities
- AST or equivalent inter operability

Demodulation Capabilities
Available mono-carrier modulations are:
- BPSK, QPSK, 8-PSK, OQPSK
- DBPSK, DQPSK, 8-DPSK
- 16-QAM, 32-QAM, 64-QAM
- MSK, GMSK, 2-FSK
The baud rate can be continuously adjusted from 0.25 to 40 MBds within a 60 MHz maximal bandwidth (1). All demodulations (except 2-FSK) are coherent and processed with an up to 64 taps fractionally spaced CMA/DD equalizer. The required accuracies on initial values and the corresponding convergence rate are:
- Baud rate: 10 -3 of baud rate.
- Carrier offset: 10-2 of baud rate.
- Convergence: 103 to 104 (64-QAM) symbols.
All combinations of demapping: absolute, differential and mixed are available.

Modular System Structure

OEM adaptations are totally possible thanks to our modular boards.

Demultiplex Compatibility
The demodulator cleans up the signal in order to work with the FRL-X408, AST or equivalent Demultiplexer (in this case, the FRL-CC40 is needed to provide the inter operability).

Remote Control
Remote control is achieved via the Ethernet 100BaseT LAN with socket messaging over TCP/IP. Graphical User Interface (running under WINDOWS XP
TM operating system) is included for control of the whole system from a remote laptop or workstation. This software enables system configurations to be
created, opened, edited, saved, and downloaded. It also provides various facilities for the control and display of monitored information such as
constellation, estimated SNR, and synchronization status.

The snapshot memory can be driven to get a 128 Mo block of signal samples in a user named host file.

Configuration Operations
The demodulator configuration consists in choosing the modulation type, defining the demapping, the pulse shaping filter parameters, and the input-to-output table for a generic symbol differential decoder.

Run Time Control
The run time control is accomplished through the GUI by controlling the constellation display, the estimated SNR value, the synchronization status for timing and carrier recovery.

I/O Connectors
All connectors are located on the rear panel. Dedicated connectors enable our high rate recorder ENRLB-48 to be connected, in order to carry out test generation (from ENRLB-48) or data recording (to ENRLB-48):
- Power supply: 100-240V / 50-60 Hz.
- Remote control: RJ45 Ethernet 100Base T.
- Rear panel signal outputs:

Front panel
The front panel contains the ON/OFF switch and some indication Leds for BIT results and synchronization status.

Temperature range
Operating: 5-45° C
Storage: -10 – 55° C
(1)Except for 70 MHz IF.

Field applications
Digital microwave beam, satellite communications.

Above mentioned specifications and informations are subject to change without prior notice.

news

November 2011 BTT achieved the 9th place in the Technology Fast50 Turkey 2011. The selection is by Deloitte Turkey with information from Turkey's fastest growing technology related companies. For the list in PDF format click here November 2011 BTT is in Fast 500 EMEA list with growth of %1175 in Europe, Africa and Middle East region. For "Winner List" click here 10-12 March 2011 BTT will exhibit in EMEA Intelligence 2011, Istanbul International Intelligence & Surveillance Conference & Exhibition Istanbul / Turkey www.emea-intelligence.com/ 21-23 February 2011 BTT exhibited in ISS World MEA, Dubai Intelligence Support Systems for Lawful Interception, Criminal Investigations and Intelligence Gathering at Dubai, as Exhibition Sponsor www.telestrategies.com Meet us at our booth on "Milipol Paris 2011" on 17-20 November 2011 Paris Expo Porte de Versailles www.milipol.com Top 500 IT companies list of Interpromedya is published; BTT Ltd. is announced to be in the Top 10 list in category of Software Development of Security Applications. www.interpromedya.com.tr

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