Weatherfax Rtty Sitor Navtex modem for MeteoFax32   


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Aragon-Soft      Aragon-Electronics

Electronics  -  Software

Amplificateur NMEA

NMEA Amplifier

Multiplexer NMEA

NMEA Multiplexer

Interface loch

Speed Loch Interface

Modem meteo

Weather Fax Modem

Interface logiciel
Computer Interface

Adaptateur USB-NMEA-AIS

USB-NMEA-AIS adapter


Logiciel meteo

Weather Fax Decoding

Logiciel de navigation

Navigation Software

Weatherfax Rtty Sitor Navtex modem for MeteoFax32:

The modem provided with MeteoFax32 :

Modem MeteoFax

This modem was designed to obtain a quality of decoding even under difficult conditions of reception. This modem provides filtering and signal conversion with optimal performance even with handheld receiver (see the analog filter). No software performing a conversion by the sound card of th computer has the required sensitivity level as soon as you move away from transmission stations for example during an Atlantic crossing by the area of trade winds. Only an external modem provides global coverage at sea.

The modem control panel:

Le panneau de controles du modem

This control panel provides the following information:

    • Oscilloscope signal.

    • Spectral analysis of the signal.

    • Level input (BF) signal.

    • Average instantaneous frequency of the signal.

    • Rejection rate of out of band below signals by digital filtering.

    • Rejection rate of out of band high signals by digital filtering.

    • Shift of the received signal (width modulation).

    • Tuning of the receiver on the signal.

    • Noise level of the signal.

    • Filling rate of the buffer.

Connection of the modem :

This modem must be connected:

  • To the computer:
      1. RS232 output version: A free RS232 port or a serial ports hub.

      1. USB output version: A free USB socket or a USB hub.

  • To the SSB receiver:

Headphone output or external loudspeaker output.

    • To the power supply:

12 volts (9 to 16 volts) 40 mA.

Branchement modem MeteoFax32

The modem is equipped with an output (jack 3.5 mm.) to collect the available signal after the band pass filter. Using a jack / jack cord between this output and microphone or line input of the sound card, it is possible to perform the monitoring of the signal with the computer either auditory or visually through the use of a analyzer or oscilloscope program as OscilloSpectroXPro. A version of this program is available on the CD-Rom MeteoFax32.

MeteoFax32 software:


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Weatherfax modem
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