Tuesday, July 31, 2012

Chinese Characters over RTTY

QMinimodem - a simple minimodem Qt frontend. QDataStream over RTTY connection

QMinimodem - hardware configuration :) QMinimodem - shardware configuration

Sunday, July 29, 2012

Arduino RTTY

RTTY Simple Test:
* Arduino Uno *
- Temperature Sensor - lm35dz
- MMC card readre for Data Loggers
- 8 ohm small speaker
- RTTY config:
* Carrier Shift: 182
* Baud Rate: 50
* Bits per character: 7(ascii)

* PC *
- EEEPC 901
- LUbuntu
- fldigi (RTTY Decoder)
- built-in microphone

Video using FLDIGI sw Decoder:


fldigi - digital modem program for hamradio operators

Video using Minimodem sw Decoder:


minimodem - software audio Bell-type or RTTY FSK modem for GNU/Linux systems minimodem is a command-line program which generates (or decodes) audio modem tones, emulating an old Bell-type or radio-teletype FSK modem. The tones can be played to (or recorded from) the PulseAudio system or to an audio file.

minimodem can be used to transfer data between nearby computers using an audio cable (or just via sound waves), or between remote computers using radio, telephone, or another audio communications medium.


Photo:



Testing Arudino RTTY

Testing Arudino RTTY

Testing Arudino RTTY

Testing Arudino RTTY