PocketDigi-1.0.6 - MFSK for the Pocket PC

PocketDigi is a digital teletype software for Pocket PC platform. It has been ported from gMFSK by Tomi Maninnen, thanks Tommy! It meant mostly to rewrite all DSP algorithms to fixed point and rewriting system calls from Linux and gtk
toolkit to Win32.

The project including desktop windows test application and sources may be downloaded from http://sourceforge.net/projects/pocketdigi/

The program is discussed on http://groups.yahoo.com/group/hampocket/
To subscribe email hampocket-subscribe@yahoogroups.com

This version supports MFSK16. The decoder is about 1dB worse in white noise than Nino IZ8BLY's Stream software. The implementation is pretty efficient, it generates a CPU load comparable to the PSK31 decoder. I hope to get reports on the usability of it.

I know there are lot of things to improve. The winters are long and cold, improvements are to be expected until spring. There will be a gathering of OK-QRP club on 17 November. I hope to manage to presuade some colleges to build a small digital QRP TRX as a companion to PocketDigi. DDS driven MFSK16 transceiver with E-class PA would be a perfect QRP solution and the TRX may not be bigger than my iPaq.

Excerpt from ChangeLog:

- Initial MFSK16 implementation. Tuning arrow shall be pointed to the idle (zero) tone.
- Fixed QPSK31 decoder
- Added squelch to PSK and MFSK16 modes
- All whitespaces of a macro line will be ignored if the macro stays alone on a line
- Bugfix - enters are not duplicated in the RX window anymore
- Added logging to a file. Stored to My Documents\PocketDig i\ChannelXX. log per every channel.
- Clean up of layout on the desktop build.
- Bugfix - waterfall will be resized correctly while changing between portrait and landscape.
- Added left/right buttons to the waterfall. Tapping them is easier than dragging the ruler.
- More precise fixed point logarithm for waterfall.

73, Vojtech OK1IAK

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