F4SNF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F4SNF, decoded by SO8OO in southeastern Poland. 3,387 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.
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 3,387 FT8 messages attributed to F4SNF as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (53%), followed by 60 m (38%) and 10 m (9%). Most decodes (90%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-10-06 07:45 UTC
Observed FT8 message patterns
- Attributed sample
- 3,387 messages
- Active dates
- 33 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -19 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,079, moderate (-15 to -9 dB) 1,824, strong (≥ -8 dB) 484.
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 F4SNF 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 F4SNF
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
- IN97 · 2,923 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,687 km (approx.)
- Last such locator decoded
- 2026-10-06 07:45 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 | F4SNF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-06 06:06 | 40m | - / -15 | IW0RLC | -20 / - | 3 | ✓ Closing fragment |
| 10-04 21:59 | 40m | -13 / - | AD2IB | - / -21 | 11 | Partial capture |
| 10-04 21:51 | 40m | -14 / - | 2E0PYG | - / -18 | 4 | Partial capture |
| 10-04 21:46 | 40m | - / -17 | IW0RLC | +6 / - | 3 | ✓ Closing fragment |
| 10-04 20:58 | 40m | -13 / - | OE6PVG | - / -6 | 3 | ✓ Closing fragment |
| 10-04 20:56 | 40m | -5 / - | OE7FTI/P | - / -18 | 3 | ✓ Closing fragment |
| 10-04 20:49 | 40m | -9 / - | OE6PVG | - / -2 | 5 | Partial capture |
| 10-04 20:25 | 40m | -14 / - | EA5JTT | - / -14 | 2 | ✓ Closing fragment |
| 10-04 20:21 | 40m | -12 / -26 | UR4LJ | -6 / -23 | 5 | ✓ Full exchange observed |
| 10-04 19:28 | 40m | -14 / - | EA3BKG | - / -4 | 10 | Partial capture |
| 10-04 19:26 | 40m | -11 / - | F1TWN | -13 / -6 | 4 | ✓ Closing observed |
| 10-04 19:22 | 40m | -10 / - | PD5WA | - / -12 | 2 | ✓ Closing fragment |
| 10-04 18:56 | 40m | -14 / - | F4MJX | - / -10 | 2 | ✓ Closing fragment |
| 10-04 18:36 | 40m | -18 / - | PI4ADH | - / -12 | 2 | ✓ Closing fragment |
| 10-04 18:14 | 40m | -10 / - | IZ1HJU | - / -11 | 2 | Partial capture |
| 10-04 18:11 | 40m | -12 / - | G8HZQ | - / -12 | 2 | ✓ Closing fragment |
| 10-04 18:03 | 40m | -12 / +10 | F4HSB | -14 / +3 | 4 | ✓ Full exchange observed |
| 10-04 17:43 | 40m | -13 / - | DM1EE | - / -7 | 2 | ✓ Closing fragment |
| 10-04 17:23 | 40m | -18 / - | OM5ALL | - / -11 | 2 | ✓ Closing fragment |
| 10-04 17:21 | 40m | -22 / - | M9NTS | - / -3 | 2 | Partial capture |
| 10-04 17:20 | 40m | -16 / - | M6DPS | - / -4 | 2 | ✓ Closing fragment |
| 10-04 17:11 | 40m | -20 / -18 | LY2BSW | -3 / -11 | 4 | ✓ Full exchange observed |
| 10-04 17:04 | 40m | -16 / +2 | F5SUE | -9 / 0 | 5 | ✓ Full exchange observed |
| 10-04 16:51 | 40m | -19 / - | OH3MB | -3 / -14 | 4 | ✓ Closing observed |
| 10-04 16:43 | 40m | -18 / -6 | F6DQZ | -10 / +1 | 4 | ✓ Full exchange observed |
| 10-04 16:22 | 40m | -14 / - | F1UGD | - / 0 | 2 | ✓ Closing fragment |
| 10-04 16:20 | 40m | -20 / - | EA4HZP | - / -12 | 2 | ✓ Closing fragment |
| 09-19 09:56 | 40m | - / -19 | PC9F | -15 / - | 3 | ✓ Closing fragment |
| 09-18 06:45 | 40m | - / - | DG3AWF | -16 / - | 2 | Partial capture |
| 09-16 08:35 | 40m | - / +4 | SM6FZO | -17 / - | 2 | ✓ Closing fragment |
| 09-16 06:49 | 40m | - / -17 | OE6OCG | +2 / - | 4 | ✓ Closing fragment |
| 09-15 19:00 | 40m | -4 / - | M8JYD | -4 / - | 2 | ✓ Closing observed |
| 09-15 18:27 | 40m | -10 / - | SP3GHC | - / -4 | 4 | ✓ Closing fragment |
| 09-15 15:39 | 40m | - / -4 | IZ2AMW | +2 / - | 3 | ✓ Closing fragment |
| 09-15 15:34 | 40m | - / -12 | DL8DZ | +4 / - | 2 | ✓ Closing fragment |
| 09-15 07:14 | 40m | - / 0 | DF5DY | -8 / - | 3 | ✓ Closing fragment |
| 09-05 12:37 | 40m | - / -12 | DL8HXP | -21 / - | 2 | ✓ Closing fragment |
| 09-04 21:34 | 60m | -19 / -8 | DM2BM | -11 / - | 4 | ✓ Closing observed |
| 09-04 21:15 | 60m | -14 / - | G3RKF | - / -8 | 2 | ✓ Closing fragment |
| 09-04 08:15 | 40m | - / -12 | F6GDM | -21 / - | 3 | ✓ Closing fragment |
| 09-04 05:48 | 40m | -20 / - | IU8DON | - / -12 | 2 | ✓ Closing fragment |
| 09-04 05:43 | 40m | -22 / -17 | IZ2CDP | -22 / -12 | 5 | ✓ Full exchange observed |
| 09-03 21:54 | 40m | - / - | ON4MAP | -8 / - | 4 | Partial capture |
| 09-03 21:51 | 40m | - / -17 | IN3LTL | +4 / - | 3 | ✓ Closing fragment |
| 09-03 21:37 | 40m | -13 / -8 | F1JIO | +3 / -6 | 9 | ✓ Full exchange observed |
| 09-03 20:42 | 40m | -10 / - | G4WJJ | - / -14 | 2 | ✓ Closing fragment |
| 09-03 20:37 | 40m | -9 / -3 | DH1KU | -14 / -8 | 6 | ✓ Full exchange observed |
| 09-03 20:28 | 40m | -7 / -14 | IK8AWH | -6 / -4 | 4 | ✓ Full exchange observed |
| 09-03 20:04 | 40m | - / - | DF8RU | +15 / - | 3 | Partial capture |
| 09-03 19:42 | 40m | - / - | SQ4INW | +1 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 221630 -15 2100 CQ F4SNF IN97 (x9) 060615 -20 1863 F4SNF IW0RLC JN63 (x3) 061330 -13 2045 CQ F4SNF IN97 (x3)
UTC dB Audio Message 214645 -20 2004 CQ F4SNF IN97 a1 (x15)
UTC dB Audio Message 203545 -15 228 F4SNF DC9GT JO53 (x5)
UTC dB Audio Message 031215 +2 2051 F4SNF TF3VS HP94 (x4) 031445 -20 1460 F4SNF F4FPR R-04 (x2) 031615 -16 1460 F4SNF G4UJS RR73 031915 -1 643 F4SNF G8OO JO02 (x3)
UTC dB Audio Message 122800 -20 1024 CQ F4SNF IN97 a1 (x6) 082545 -12 2538 F4SNF IU0VOG JN61 (x3) 084230 -15 799 CQ F4SNF IN97 085545 +9 2782 F4SNF F1PBZ -12 (x2) 141715 -8 833 F4SNF IK8NSR JN72 (x3)
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.
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