F9SS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F9SS, decoded by SO8OO in southeastern Poland. 438 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-18.
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 438 FT8 messages attributed to F9SS as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (66%), followed by 10 m (34%) and 40 m (1%). Most decodes (79%) fell within the six-hour window 10:00-16:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -1.8 dB.
Overview
Bands
Last attributed message: 2026-09-18 08:54 UTC
Observed FT8 message patterns
- Attributed sample
- 438 messages
- Active dates
- 33 UTC dates
- Estimated median S/N
- -1.8 dB
- Estimated 10th-90th percentile
- -12 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 84, strong (≥ -8 dB) 341.
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 F9SS 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 F9SS
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
- JN18 · 295 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,370 km (approx.)
- Last such locator decoded
- 2026-09-18 08:52 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 | F9SS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-18 08:51 | 40m | -10 / - | N3VA | - / - | 2 | Partial capture |
| 08-30 13:06 | 20m | +1 / - | AJ9C | - / - | 7 | Partial capture |
| 08-30 13:00 | 20m | +1 / - | KG5CCI | - / -16 | 7 | Partial capture |
| 08-30 12:55 | 20m | +4 / - | N3US | - / -15 | 2 | ✓ Closing fragment |
| 08-30 12:54 | 20m | 0 / - | AB8RL | - / -15 | 6 | Partial capture |
| 08-30 12:52 | 20m | +4 / - | N1MGO | - / -19 | 4 | Partial capture |
| 08-30 12:50 | 20m | +2 / - | N3US | - / - | 4 | Partial capture |
| 08-30 12:48 | 20m | +2 / - | KK5JY | - / -26 | 2 | ✓ Closing fragment |
| 08-30 12:47 | 20m | +4 / - | KG4OJT | - / -12 | 3 | ✓ Closing fragment |
| 08-30 12:46 | 20m | 0 / - | K5CEB | - / -10 | 2 | ✓ Closing fragment |
| 08-30 12:16 | 20m | +4 / - | AD9GE | - / -20 | 4 | ✓ Closing fragment |
| 08-30 12:13 | 20m | +2 / - | W6NWS | - / -12 | 4 | ✓ Closing fragment |
| 08-30 12:11 | 20m | +5 / - | KJ1R | - / - | 4 | Partial capture |
| 08-30 11:53 | 20m | -9 / - | OY1HJ | - / -10 | 3 | ✓ Closing fragment |
| 08-30 11:45 | 20m | +6 / - | N0YY | - / - | 7 | Partial capture |
| 08-30 11:42 | 20m | +4 / - | N0FW | - / - | 6 | Partial capture |
| 08-30 11:39 | 20m | -2 / - | AA8WZ | - / -13 | 3 | ✓ Closing fragment |
| 08-30 11:33 | 20m | -4 / - | K1IM | - / - | 7 | Partial capture |
| 08-30 11:31 | 20m | -4 / - | KC1LMY | - / -10 | 3 | ✓ Closing fragment |
| 08-30 11:30 | 20m | -3 / - | K1IM | - / - | 3 | Partial capture |
| 08-30 11:27 | 20m | -5 / - | KM1W | - / -9 | 4 | ✓ Closing fragment |
| 08-30 11:25 | 20m | -6 / - | KD2YCK | - / -17 | 4 | ✓ Closing fragment |
| 08-21 13:37 | 20m | -3 / -13 | JH3CUL | -8 / - | 6 | ✓ Closing observed |
| 08-21 13:35 | 20m | 0 / - | JA7FTR | - / -22 | 4 | ✓ Closing fragment |
| 08-21 13:27 | 20m | -10 / - | WY0V | - / - | 2 | Partial capture |
| 08-21 13:24 | 20m | -12 / - | WY0V | - / - | 3 | Partial capture |
| 08-21 13:22 | 20m | -10 / - | KD4AP | - / -22 | 4 | ✓ Closing fragment |
| 08-21 13:20 | 20m | -9 / - | K1SM | - / -11 | 2 | ✓ Closing fragment |
| 08-21 13:18 | 20m | -8 / - | KA1MXL | - / -16 | 2 | ✓ Closing fragment |
| 08-21 12:17 | 20m | -6 / - | K4ZXV | - / - | 2 | Partial capture |
| 08-21 12:14 | 20m | -10 / - | VA3OKG | - / - | 2 | ✓ Closing fragment |
| 08-21 10:17 | 20m | -4 / - | OJ0YL | - / - | 11 | Partial capture |
| 08-16 11:51 | 10m | -11 / -4 | Z61DX | -3 / -1 | 7 | ✓ Full exchange observed |
| 08-14 15:09 | 20m | +6 / - | 8C81KS | - / - | 2 | Partial capture |
| 08-14 15:08 | 20m | +5 / - | <...> | - / - | 3 | Partial capture |
| 08-11 09:04 | 10m | -4 / - | UD8S | - / - | 2 | ✓ Closing fragment |
| 08-11 08:58 | 10m | -6 / -3 | OD5JL | -19 / -3 | 9 | Partial capture |
| 08-10 15:01 | 20m | -5 / - | BA5AW | - / -14 | 3 | ✓ Closing fragment |
| 08-10 14:44 | 20m | -12 / - | P40AA | - / -11 | 12 | Partial capture |
| 08-10 14:39 | 20m | -16 / - | WA2HIP | - / -22 | 2 | Partial capture |
| 08-10 13:18 | 10m | -5 / - | <...> | - / -3 | 3 | Partial capture |
| 08-10 13:16 | 10m | -9 / - | YE1AJE | - / -11 | 2 | ✓ Closing fragment |
| 08-06 12:59 | 20m | -1 / - | NM3B | - / - | 2 | Partial capture |
| 08-06 12:55 | 20m | -9 / - | JR7RHO | - / -14 | 4 | ✓ Closing fragment |
| 08-05 06:19 | 20m | +5 / - | Z35T | - / - | 8 | Partial capture |
| 08-05 06:17 | 20m | +3 / - | VK2GQR | - / - | 3 | Partial capture |
| 08-05 06:12 | 20m | -8 / - | C91RU | - / -10 | 3 | ✓ Closing fragment |
| 08-05 06:09 | 20m | 0 / - | R6DVG | - / - | 3 | Partial capture |
| 08-05 06:06 | 20m | -5 / - | 5N0YEN | - / -7 | 2 | Partial capture |
| 08-05 06:04 | 20m | -2 / - | VK2GQR | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 061245 -9 388 KC9BK F9SS JN18 155730 -13 2575 F9SS PD0HLA RR73 085115 -10 724 N3VA F9SS JN18 (x2) 085445 -21 2156 GM5CAR F9SS -06
UTC dB Audio Message 125815 +0 1127 AB8RL F9SS R-15 130015 +3 1127 KG5CCI F9SS JN18 (x7) 130615 +5 1162 AJ9C F9SS JN18 (x7)
UTC dB Audio Message 090100 -3 1167 OD5JL F9SS JN18 (x3) 090215 -19 1171 F9SS OD5JL -03 090230 -8 1167 OD5JL F9SS R-03 090445 -5 959 UD8S F9SS JN18 (x2) 115130 -12 1076 Z61DX F9SS JN18 (x3) 115245 -4 784 F9SS Z61DX -04 115300 -9 1076 Z61DX F9SS R-01 115315 -2 783 F9SS Z61DX RR73 115330 -11 1076 Z61DX F9SS 73 115415 -7 474 F9SS DK7UY JO44
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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