F4FSY — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving F4FSY, decoded by SO8OO in southeastern Poland. 13,517 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 134 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 13,517 FT8 messages attributed to F4FSY as the transmitting token by decoded message structure across 134 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (38%), followed by 20 m (27%) and 40 m (20%). The busiest six-hour window was 11:00-17:00 UTC, containing 41% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11.8 dB.
Overview
Bands
Last attributed message: 2026-10-22 17:59 UTC
Observed FT8 message patterns
- Attributed sample
- 13,517 messages
- Active dates
- 134 UTC dates
- Estimated median S/N
- -11.8 dB
- Estimated 10th-90th percentile
- -21 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4,259, moderate (-15 to -9 dB) 4,510, strong (≥ -8 dB) 4,748.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with F4FSY in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to F4FSY
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- JN25 · 2,680 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,346 km (approx.)
- Last such locator decoded
- 2026-10-22 17:45 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | F4FSY S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 17:58 | 40m | -6 / - | M0LJN | - / -18 | 2 | Partial capture |
| 10-22 17:46 | 40m | -8 / - | EA5BH | - / -11 | 2 | ✓ Closing fragment |
| 10-22 07:06 | 40m | -16 / - | W2S | - / -21 | 2 | Partial capture |
| 10-22 07:03 | 40m | -17 / - | F4AHJ | - / -15 | 3 | Partial capture |
| 10-22 07:02 | 40m | -18 / - | SA6DST | -13 / -10 | 3 | ✓ Closing observed |
| 10-22 06:56 | 80m | -10 / - | WD1V | - / -21 | 2 | Partial capture |
| 10-22 05:35 | 80m | - / +7 | DA6DN | -2 / - | 2 | Partial capture |
| 10-21 18:24 | 80m | -6 / - | DO5SMH | - / - | 3 | Partial capture |
| 10-21 18:22 | 80m | -1 / - | EU7DW | - / -3 | 2 | Partial capture |
| 10-21 18:20 | 80m | -8 / - | ON7KRI | - / -3 | 2 | Partial capture |
| 10-21 18:18 | 80m | -9 / +5 | DD0IPA | -8 / -4 | 3 | ✓ Full exchange observed |
| 10-21 18:17 | 80m | -2 / - | IS0IYV | +1 / - | 3 | ✓ Closing observed |
| 10-21 18:11 | 80m | -9 / - | R1QF/P | - / -16 | 2 | Partial capture |
| 10-21 18:05 | 40m | +2 / - | RK6OU | - / -10 | 2 | Partial capture |
| 10-21 18:03 | 40m | +2 / -16 | UB3ZKO | -8 / -17 | 3 | ✓ Full exchange observed |
| 10-21 17:53 | 40m | -5 / - | M9DNC | -9 / -8 | 2 | ✓ Closing observed |
| 10-21 17:49 | 40m | -5 / - | UR7HMQ | - / -15 | 2 | Partial capture |
| 10-21 17:48 | 40m | -1 / - | RM8CZ | - / -15 | 3 | ✓ Closing fragment |
| 10-21 11:18 | 40m | -22 / - | OE7FZI | - / -6 | 2 | Partial capture |
| 10-21 11:10 | 40m | -24 / - | F5TGY | - / -6 | 2 | ✓ Closing fragment |
| 10-21 11:07 | 40m | -22 / - | IZ6GVT | - / - | 2 | Partial capture |
| 10-21 11:01 | 40m | -20 / - | IU1WZN | - / -6 | 3 | Partial capture |
| 10-21 10:54 | 40m | -21 / - | IU1WZN | - / -8 | 4 | Partial capture |
| 10-21 10:49 | 40m | -21 / - | IU1WZN | - / -3 | 3 | Partial capture |
| 10-21 10:43 | 40m | -22 / - | DB4VI/P | - / -10 | 3 | Partial capture |
| 10-21 10:40 | 40m | -21 / - | DG7OAZ | - / -8 | 4 | ✓ Closing fragment |
| 10-21 10:37 | 40m | -20 / - | MM9ODX | - / -15 | 2 | ✓ Closing fragment |
| 10-21 10:09 | 40m | - / - | DG6SCK | -13 / - | 2 | Partial capture |
| 10-21 10:09 | 40m | - / - | IK4LZH | -9 / - | 2 | Partial capture |
| 10-21 10:04 | 40m | -23 / - | DM5KK | -11 / +2 | 3 | ✓ Closing observed |
| 10-21 10:03 | 40m | -20 / - | DG6SCK | - / +2 | 2 | Partial capture |
| 10-21 09:28 | 40m | -24 / -12 | OK2CNI | -3 / - | 3 | ✓ Closing observed |
| 10-21 09:03 | 40m | -21 / - | PD2JAM | -11 / - | 2 | ✓ Closing observed |
| 10-21 05:29 | 80m | - / -6 | OK2BHD | +14 / - | 2 | ✓ Closing fragment |
| 10-21 05:25 | 80m | -1 / +5 | F4NGR | -9 / +2 | 6 | ✓ Full exchange observed |
| 10-21 05:24 | 80m | -3 / - | EA3IMX | - / -7 | 2 | ✓ Closing fragment |
| 10-21 05:22 | 80m | -5 / - | K8OOK | - / -16 | 3 | Partial capture |
| 10-21 05:20 | 80m | -5 / - | ES5PC | +4 / - | 2 | ✓ Closing observed |
| 10-21 05:18 | 80m | -8 / - | K8OCN | - / -15 | 2 | ✓ Closing fragment |
| 10-21 05:12 | 80m | -1 / -13 | KX4I | -13 / -5 | 4 | Partial capture |
| 10-21 05:04 | 40m | -17 / - | RD9T | - / -13 | 2 | Partial capture |
| 10-21 05:02 | 40m | -16 / - | K7KX | - / -15 | 3 | Partial capture |
| 10-21 04:59 | 40m | -17 / - | YV5KG | - / -13 | 3 | Partial capture |
| 10-21 04:53 | 40m | -10 / - | K7UMD | - / -15 | 6 | ✓ Closing fragment |
| 10-21 04:52 | 40m | -8 / - | EA4ECT | - / -8 | 3 | Partial capture |
| 10-21 04:48 | 40m | -4 / - | SP3MIP | - / -18 | 2 | Partial capture |
| 10-21 04:45 | 40m | -8 / - | KE2DBO | - / -8 | 2 | ✓ Closing fragment |
| 10-21 04:42 | 40m | -7 / - | W9BLU | - / -16 | 4 | ✓ Closing fragment |
| 10-21 04:40 | 40m | -4 / - | KE8YOU | - / -9 | 3 | Partial capture |
| 10-21 04:37 | 40m | -5 / -3 | EA7R | -7 / -1 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 070245 -13 715 F4FSY SA6DST 73 070330 -18 1779 F4AHJ F4FSY -15 (x3) 070500 -21 1780 CQ F4FSY JN25 070530 -16 1779 F6AUS F4FSY -10 070600 -16 1779 W2S F4FSY -21 (x2) 174515 -6 1568 CQ F4FSY JN25 174545 -5 1568 R4GM F4FSY -06 174645 -9 1568 EA5BH F4FSY -11 (x2) 175500 -8 1841 LZ2BC F4FSY -12 175830 -5 1841 M0LJN F4FSY -18 (x2)
UTC dB Audio Message 182200 +2 1743 EU7DW F4FSY -03 (x2) 182330 -8 1743 CQ F4FSY JN25 182400 -10 1743 DO5SMH F4FSY JN25 (x3) 182530 -4 1743 CQ F4FSY JN25 182630 +0 1743 M0EBM F4FSY -14 053515 -5 1743 F4FSY DA6DN JO43 (x2) 055245 -9 1744 F4FSY PI4TS 73 065600 -12 1743 G0LAT F4FSY -17 065630 -11 1743 WD1V F4FSY -21 (x2) 065730 -9 1743 HA1DAE F4FSY -10
UTC dB Audio Message 170115 -12 2317 F4FSY OZ9FF 73 170200 -23 1475 ER1CW F4FSY -13 170500 -19 1475 ON6CQ F4FSY -13 (x3) 043715 -20 1771 F4FSY SP2EWQ R-21 (x2) 043745 -1 818 F4FSY G3TKT IO92 (x4) 053615 -7 1771 F4FSY SP2EWQ JO93 (x3) 054445 -23 1774 F4FSY ON1JP -13
UTC dB Audio Message 041100 -8 1120 F4FSY F4JUQ +01 034030 -7 1615 IZ1AJJ F4FSY JN25 (x2) 034115 -10 1002 F4FSY IZ1AJJ +02 034130 -10 1615 IZ1AJJ F4FSY R+03 (x2) 034215 -18 2176 F4FSY PA3BUD JO21 034230 -11 1615 PA3BUD F4FSY -02 034245 -18 2176 F4FSY PA3BUD R+06 034300 -6 1615 PA3BUD F4FSY RR73 034315 -13 2176 F4FSY PA3BUD 73 034330 -4 1615 CQ F4FSY JN25 (x4)
UTC dB Audio Message 130645 -9 1941 PY4WVZ F4FSY -10 130715 -23 1941 Z62NS F4FSY -09 (x3) 130915 -15 1942 CT7BIN F4FSY -11 (x4) 131145 -10 1941 Z62NS F4FSY -12 (x3) 131315 -10 1941 CQ F4FSY JN25 131345 -14 1941 YB4KAR F4FSY -11 (x2) 131515 -14 1941 CQ F4FSY JN25
UTC dB Audio Message 181545 +9 2191 BA4IAW F4FSY -13 (x2) 181645 +1 2191 BG0FQU F4FSY -13 (x2) 083000 -24 1751 CQ F4FSY JN25 a1 084230 -11 1751 DJ9HX F4FSY -09 075115 +12 1767 OZ1SUN F4FSY -11 (x2) 075215 +4 1767 PE4BEN F4FSY -14 (x3) 075345 -1 1767 M7OKF F4FSY -15 075415 +3 1767 YO3RU F4FSY -11 (x2) 075515 +4 1767 CQ F4FSY JN25
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
CW
No CW receptions recorded for this callsign in the last 30 days.
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