I was successful in the decode the header of HITSAT FM 437.425MHz packet data. These signals were switched on ONLY in the range of Japan. And these 1k2 AFSK (FM 437.425 MHz) be able to decode by modem of IC FX614, becauce NOT AX.25 (not NRZ-NRZI). I was successful in the decode of the header "JR8YJT" of these FM data by using a soundcard program MixW2 (ver2.17).
JR8YJT#!5020000100927205504,305,366,8;7A,34,388,99,2,5,8C,12D
1. Click_right the volume button on your PC. 2. Click the adjustment of Audio_property. 3. Click the audio tab. 4. Click the volume button of the audio record. 5. Check the button of the monaural mixer. 6. Run MixW2. 7. Mode - RTTY 8. Mode - Mode Settings - Check "Inverted, AFC, and Squelch" 9. Mode - Mode Settings - Input "1800" Hz in TX and RX frequency box 10. Mode - Mode Settings - Input "Single filter" in Demodulator box 11. Mode - Mode Settings - Input "1800" in Shift box and Baud rate box 12. Mode - Mode Settings - Select "ASCII 7" 13. Run Sound_Decoder "sndrec32.exe". 14 Playback "60928hit.wav" in the following URL. 15. http://www.ne.jp/asahi/hamradio/je9pel/hitsat03.htm 16. Then the signals are decoded automatically on MixW2 window.
Tnx.> JH4DHX/3 / Mr. Ohtani
--------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: [email protected] URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Oct 1, 2006 ---------------------------------------------