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Overview
The WiNRADiO WR-G33EM is a high-performance receiver
specially developed for marine applications. It covers the HF frequency
range to 30 MHz, and contains a number of decoding facilities including
HF Fax, NAVTEX, DSC and TELEX, as well as classical AM, SSB and CW radio
modes.
Integrated GPS receiver and antenna, with USB interface. When combined
with the G33EM receiver, it provides continues position display,
superimposed on a zoomable high-resolution map of the world
This high-performance marine receiver is extremely
sensitive and optimized to work with relatively short antennas,
typically found in a marine environment, yet featuring a respectable
dynamic range making the receiver resistant to strong signal overload.
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Software Defined Radio
The WR-G33EM is the first Software Defined Radio
specifically designed for marine applications.
A Software Defined Radio (SDR) is one where most of
the radio signal processing is performed in software, using digital
signal processing methods, rather than using traditional hardware parts,
resistors, capacitors, diodes, etc. The received signal is digitized
early in the signal processing chain, and any further processing,
demodulation and decoding of the digitized signal is then performed
entirely in software.
There are many advantages to this approach, especially
the flexibility of demodulation modes - new modes can be added easily by
simply upgrading software. The G33EM also performs better than a
comparable conventional receiver, thanks to advanced signal processing
techniques which make it possible to implement sharper selectivity
filters, and more accurate demodulators and decoders than conventional
hardware.
The performance of a Software Defined Radio receivers
is also more consistent, stable and reliable because component
tolerances and aging do not play such an important role as in a
conventional receiver.
And finally, the G33EM receiver offers far more
features and facilities than a conventional receiver. For example, the
real-time spectrum analyzer with continuously variable bandwidth,
graphical notch filter and IF recording are some of the many features
which were previously unavailable on a conventional marine radio, in
particular at such an affordable price level.
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What's included?
The standard WR-G33EM package includes:
WR-G33EM receiver
Application software
Comprehensive user's manual
Low-noise linear power supply
Start-up antenna
USB cable
BNC-to-SMA adapter
Technical
Specifications
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System requirements:
PC with 500 MHz Pentium CPU or faster
One free USB socket
Windows 98/ME/2000/XP
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