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Current projects
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Finished projects and references
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Communications technology and RF applications
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Development of a phase and gain measurement test set for I-Q-modulated RF signals.
With this test set, phase and gain distortions during the transmission of I-Q-modulated data signals
can be measured.
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Development of a technique to reduce the eavesdropping risk of analog tranmission of video signals.
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Design, testing and quality assurance for the production of a 150 Watts RF power generator for opening
mercury filled capsules in the production of neon signs.
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Development of a universal spread spectrum transceiver for full-duplex transmission of analog
(video/audio, for example) and digital data (W-Fieldbus, W-LAN) in the 2.45 GHz ISM band.
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Development of a 5.8 GHz RF module to extend the frequency range of the spread spectrum transceiver
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Development of an emergency shutdown module for the 2.45 GHz transceiver according to EN 954, including
TÜV approval. The emergency shutdown module is a customer specific extension to the 2.45 GHz transceiver.
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Development of a FSK/OOK transceiver for semi-duplex transmission of digital data.
in the 315 MHz, 433 MHz, 868 MHz or 915 MHz ISM band.
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Contactless recognition of objects that can not be separated by vision
(RFID system using the 27 MHz band).
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Development of a power amplifier with adjustable gain to drive an AOTF (Acousto Optic Tunable Filter)
for the Fraunhofer Institut für Chemische Technologie as a part of a NIR (near infrared) spectrometer.
This development was done in cooperation with Ingenieurbüro Herwig Marschelke.
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Development of the RF frontend of satellite TV card with DiSEqC for personal computers
for Hauppauge! Computer Works.
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Emergency beacon (470 MHz).
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Setting up of operation and testing of telemetry system for the surveillance of dangerous goods
during transportation in cooperation with Dornier Consulting GmbH, Friedrichshafen
  
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IFN Ingenieurbüro für Nachrichtentechnik Helmut Brandl,
Inhaber Helmut Brandl jun., Blarerstrasse 56, D-78462 Konstanz
Tel.: +49 (0)7531 / 91250, Fax: +49 (0)7531 / 91252,
E-Mail: info@ifn-brandl.de, Ust-Ident-Nummer DE 156 599 916
© 2008 by IFN H. Brandl, last update: 20. March, 2007