Weatherfax Rtty Sitor Navtex modem for MeteoFax32:
The modem provided
with MeteoFax32 :
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
This control panel
provides the following information:
Spectral analysis of the signal.
Level input (BF) signal.
Average instantaneous frequency of the signal.
Rejection rate of out of band below signals by
Rejection rate of out of band high signals by digital
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
This modem must be connected:
RS232 output version: A free RS232 port or a serial ports
USB output version: A free USB socket or a USB hub.
Headphone output or external loudspeaker output.
12 volts (9 to 16 volts) 40 mA.
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.