RDF Products DFR-1200B Wideband Radio Direction Finding Receiver.
The RDF Products Model DFR-1200B is a compact, self-contained wideband HF/VHF/UHF DF receiver and bearing processor/display combo designed for both mobile and fixed-site DF applications. Frequency coverage is from 100 kHz to 3,000 MHz, limited only by the accompanying DF antenna.
Comprising the DFP-1000B DF Processor/ Display and AOR AR5000A Wideband Communi cations Receiver, the DFR-1200B teams up the world’s finest single-channel DF processor with the world’s finest wideband consumer-market communications receiver. The resulting combo package provides a complete full-featured high-performance DF receiver in a footprint small enough for even for mobile operation.
Operationally, the AR5000A serves as a wideband tuneable down-converter for the DFP-1000B processor. Physically, the DFP-1000B mounts atop the AR5000A, secured by Velcro or Nylon mounting straps. No modifications are required to either unit.
The DFR-1200B employs a 360° degree real-time polar TFT bearing display that is unsurpassed in dynamic DF environments where either the signal source or the DF station is in motion. This highly intuitive display format is essential for discriminating valid bearings from noise, reflections, and interference. For fixed-site or other applications where higher bearing accuracy and resolution is required, the numeric bearing display allows bearing resolution down to 0.5°. Using the supplied Windows software controller package “DefCon2b”, the DFR-1200B can be remotely operated by computer as a “virtual DF receiver” as illustrated on the following page.
The DFR-1200B features excellent listen-through capability. With most signal formats, undistorted signal audio output is obtainable simultaneously with DF operation. Demodulators are included for AM, FM, CW, and SSB with built-in speaker or external headset audio output, along with four selectable IF bandwidths for optimum reception.
Seven selectable bearing integration times are available for optimum DF performance for a wide variety of signal formats. With pulse response capability down to 35 milliseconds, the DFR-1200B can respond to very short duration signals (including A.I.D. beacons). Other features include bearing display Track & Hold, Range Tone, and GPS receiver/digital compass interfaces.
Compact, Self-Contained, Easy-To-Operate Unit
Ultra-Wide Frequency Coverage (0.1-2,600 MHz; subject to DF antenna frequency coverage)
Real-Time TFT Polar Bearing Display For Optimum Performance In Dynamic DF Environments
Specifically Designed For Radio Direction Finding In Motion
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Frequency Coverage and Modes:
MW-HF: General Coverage: 500 kHz - 30.000 MHz
User Configurable Band Key:
Amateur Band Selections: 160 m – 10 m
International Broadcast Bands: 120 m – 11 m
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