[GreenKeys] off air NAVTEXT, SITOR-B recordings

[paul at paulnewland.com]

I'm working on having an Arduino Uno microcomputer decode SITOR-B (FEC)
signals (Baudot RTTY TX and RX to an LCD display is working on the Arduino
now) and would like to work with some off-the-air signals.  Unfortunately,
at the moment, I'm in the position of having poor antennas and a broken
radio receiver.

Is there someone who is near a US or Canadian 518 kHz Navtext station who
can digitally record the audio output of their radio when monitoring a
NAVTEX broadcast and either Dropbox or FTP me the sound file?  I can give
you an account on my FTP server.  1615/1785 Hz tones would be preferred as
I'm using a simple PLL as my test FSK decoder (hence the need for a solid
audio signal), although I can make 2125/2295 Hz work with the PLL.  I would
use 2125/2295 HZ with my ST-5000 but the filters in the ST-5000 seem too
narrow to deal with the 100 bps FSK signal.  Either Normal or Reversed
tones are both fine.  I can invert the data in the microcomputer.

thank you.

Paul Newland, ad7i
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