WX Receiver Page
What is it ?
WXReceiver is a little utility to automate the reception of the APT signal transmitted by the low orbit Weather satellites. It will:
- Set the receiver to the correct frequency just before the satellite pass (using a serial connection).
- Record the audio signal during the pass. (Using the line in input of the sound card).
- Create overlay for pass using David Taylor's WXtrack.
- Load the wav file into David's (registered version) of SatSignal.
It will also give you a central point for starting all other programs that you may need for the reception - audio editing - image editing.
Download and history:
WX Receiver v0.49a Ìarch 2002 (unzip into the WXreceiver folder. You also need the v0.41 full installation)
- BUGFIX - The Passlist.txt file includes the year. WXrcv was ignoring it. Fixed.
- Tone squelch : Recording begins after the audio carrier has been heard loud enough. Do not forget to set the frequency and the desired level over noise…
- Audio spectrum. Helps setup and test the audio capture. Note that a sample of 500mSec is analysed every time the “Audio Spectrum” button is pressed (not real time).
- Configuration through different window.
- Various minor changes. I have not tested this version at all. Please let me know of any bugs.
- A fair deal of options are not operational yet (scanner, hardware tone squelch etc). I just haven’t got the time for a proper release yet… Sorry…
WX Receiver v0.46d
WX Receiver v0.46a
- Support for Timestep / Prosat: New configuration option that will open the serial port just before sending the command and close it afterwards. This prevents the continuous steam of data to slow down or crash (overflow) the program.
- Paths are checked for validity at start up.
- Debug mode : A file called log.txt will be created in the program folder.
- One click for Overlay creation and processing in Satsignal (Registered version only).
- Support for the above with any file that follows the month-day-hour-minute (eg "10281059.wav") format.
- View of a pass in WXtrack does not need to send keystrokes any more (foolproof). David Taylor was very kind to include a command line option for this. Thanks David ! make sure you have the latest version of WXtrack.
- Various internal improvements (Bugs ?? :-)
- Bugix : On Win 95/98/ME the sound subsystem was not closed properly causing memory leaks. Win2k was O.K.
WX Receiver v0.45
- Create overlay with David Taylor's WXtrack for selected pass.
- Automatic processing of the audio file in David's Satsignal (you need the registered Satsignal; if you haven't registered you don't know what you are missing !).
- Clear indication of "out of data" situation (no more negative time of passes)
- Location of "passlist.txt" now is saved in the registry; can be called whatever you prefer, in any directory you like.
WX Receiver v0.44 upgrade (unzip into the WXreceiver folder. You also need the v0.41 full installation):
- Keys * and # now work as memories No 11 and 12 in wxrcv.ini.
- Bug fix : The program would crash if your receiver was sending continuously high speed data on the Serial RX pin. (Thanks Wolfgang !).
WX Receiver v0.43
- Selectable Baudrates (1200 - 115200).
- Support for com3,com4.
WX Receiver v0.42
- Most paths are configurable and are stored in the registry.
- Recording uses buffering.
- You can now see the selected pass in David Taylor's WXtrack by double clicking the text box with the pass time/date.
- More right click options (Run Tracking, Decoding, Sound mixer, Recording mixer, Sound Editor, Image editor, Start/Stop recording manually).
- Bug Fix : In case of overlapping passes, the receiver frequency was changed half way through the recording.
WX Receiver v0.41 (full installation. You need this):
The first public distribution.
Initialization files (wxrcv.ini):
These are ready made files for various receivers. Please send your own -)
ProSat - TimeStep - Wraase : Provided by Wolfgang Teske.
Time permitting, the future versions will include the following :
- Record at maximum samples per second, and then filter and downsample to the set SPS (to avoid aliassing).
- After a pass recording, call David Taylor's Satsignal (you must have the registered version) to create the image(s).
- Continuously set the receiver frequency to compensate for Doppler effect
- Add support for automatic antenna positioners.