heard this morning (April, 13) on 10226.8 KHz (cf) at 0814 UTC: only one transfer, maybe due to bad propagation? Signal is an FSK-2 modulation at 301 Baud and 780 Hz shift (pic. 1), most likely from Finnish Intelligence.
 |
| Pic. 1 |
The signal is chacterized by several harmonics (pic. 2) and is suggested to be originated from a Nokia Adaptive MSG Terminal, as reported in two interesting topics from radioscanner forum:
The former just refers to this waveform while the latter refers to the M85200 M/90 Nokia Adaptive MSG Terminal: the heard signal is probably a new variant/modem.
A possible period length is 16 bit (pic. 3) but since this modem uses the Manchester coding the source stream has a 8 bit period.
 |
| Pic. 3 |
 |
| Pic. 4 |