F1UJS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F1UJS, decoded by SO8OO in southeastern Poland. 117 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-09-12 and 2026-09-19.
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 117 FT8 messages attributed to F1UJS as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (54%), followed by 60 m (27%) and 40 m (18%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-09-19 23:24 UTC
Observed FT8 message patterns
- Attributed sample
- 117 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -18 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 51, strong (≥ -8 dB) 36.
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 F1UJS 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 F1UJS
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
- IN94 · 77 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,816 km (approx.)
- Last such locator decoded
- 2026-09-19 23:24 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 | F1UJS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 23:17 | 80m | - / -7 | 4O7CC | +2 / - | 2 | ✓ Closing fragment |
| 09-19 23:10 | 80m | - / -16 | UF4S | +6 / - | 2 | ✓ Closing fragment |
| 09-16 22:56 | 80m | -6 / -9 | 9A3AUH | 0 / - | 5 | ✓ Closing observed |
| 09-16 22:54 | 80m | -10 / -24 | R3PLN | -4 / -15 | 5 | ✓ Full exchange observed |
| 09-15 22:59 | 40m | -4 / - | TJ1GD | - / -18 | 4 | ✓ Closing fragment |
| 09-15 22:55 | 80m | - / +1 | TK/4O7CC | +10 / - | 2 | ✓ Closing fragment |
| 09-15 22:54 | 80m | -10 / - | SQ100PKP | - / -6 | 2 | Partial capture |
| 09-15 19:59 | 80m | -14 / - | SV8/F6BLP | - / -9 | 4 | Partial capture |
| 09-15 19:57 | 80m | -14 / - | 4L6EZ | - / - | 2 | Partial capture |
| 09-15 19:49 | 80m | - / - | DO1BBS | -8 / - | 2 | Partial capture |
| 09-15 19:47 | 80m | - / -1 | OM7RU | 0 / - | 3 | ✓ Closing fragment |
| 09-15 19:44 | 80m | -13 / - | R2RCQ | - / - | 2 | Partial capture |
| 09-15 19:37 | 80m | -16 / 0 | GU4WRP | -24 / - | 3 | Partial capture |
| 09-15 19:31 | 60m | -10 / - | YU9MBA | - / - | 3 | Partial capture |
| 09-15 19:28 | 60m | -11 / -16 | TF1A | -14 / -5 | 5 | ✓ Full exchange observed |
| 09-15 19:24 | 60m | -10 / -15 | ER1CW | -10 / -13 | 8 | ✓ Full exchange observed |
| 09-15 19:22 | 60m | -14 / - | MW0CVT | - / -15 | 3 | ✓ Closing fragment |
| 09-14 22:34 | 40m | -11 / -4 | D44TWO | -18 / - | 6 | ✓ Closing observed |
| 09-14 22:33 | 40m | - / 0 | OS4K | -14 / - | 3 | Partial capture |
| 09-14 22:32 | 40m | -10 / - | SV9QWC | - / -6 | 2 | Partial capture |
| 09-14 22:29 | 40m | -8 / - | YE4FHY | - / - | 2 | Partial capture |
| 09-14 22:27 | 40m | -9 / - | TN8GD | - / -23 | 4 | ✓ Closing fragment |
| 09-14 22:20 | 80m | -10 / -17 | YU7AS | 0 / -7 | 4 | ✓ Full exchange observed |
| 09-14 22:18 | 80m | -18 / -6 | ON1BH | -11 / -2 | 5 | ✓ Full exchange observed |
| 09-14 22:17 | 80m | -12 / - | WP4G | - / -18 | 2 | ✓ Closing fragment |
| 09-14 22:16 | 80m | -12 / - | YL3NU | - / - | 2 | Partial capture |
| 09-14 22:13 | 160m | -17 / -1 | EA6Y | -8 / - | 3 | ✓ Closing observed |
| 09-14 19:58 | 80m | -13 / -7 | T77RN | -4 / -7 | 3 | ✓ Full exchange observed |
| 09-14 19:41 | 80m | -8 / - | SV9MBH | - / - | 3 | Partial capture |
| 09-14 19:37 | 80m | - / -2 | OZ6TL | -4 / - | 2 | ✓ Closing fragment |
| 09-14 19:35 | 80m | -16 / -3 | SM7OYP | +2 / -12 | 4 | Partial capture |
| 09-13 22:11 | 80m | -3 / -5 | OH6FSO | -4 / -18 | 3 | ✓ Full exchange observed |
| 09-13 22:07 | 80m | -5 / - | EU7FBB | - / - | 3 | Partial capture |
| 09-12 23:45 | 60m | -5 / - | OE3OOG | - / +2 | 5 | ✓ Closing fragment |
| 09-12 23:40 | 80m | -10 / - | LU1FP | - / - | 2 | Partial capture |
| 09-12 23:38 | 80m | -5 / -3 | 7X5CY | -12 / -1 | 4 | ✓ Full exchange observed |
| 09-12 22:01 | 80m | -20 / 0 | 7X5CY | -2 / +1 | 5 | Partial capture |
| 09-12 20:51 | 60m | -16 / -11 | SP5JMA | -7 / -6 | 5 | ✓ Full exchange observed |
| 09-12 20:48 | 60m | -17 / - | 9K2HS | -5 / -15 | 7 | ✓ Closing observed |
| 09-12 20:22 | 60m | -18 / -11 | 7X5CY | -3 / +3 | 4 | ✓ Full exchange observed |
| 09-12 18:37 | 60m | - / -11 | LY8O | -2 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 225500 -3 1161 F1UJS R3PLN RR73 225515 -9 686 R3PLN F1UJS 73 225600 +0 2618 F1UJS 9A3AUH JN75 (x3) 225715 -6 686 9A3AUH F1UJS RR73 225730 -4 2618 F1UJS 9A3AUH 73 205930 -15 1135 JA5MHD F1UJS IN94 211830 -18 1572 BI8FRF F1UJS IN94 220030 -16 1572 TA7ARH F1UJS IN94 231030 +8 1087 F1UJS UF4S -16 (x2) 231700 +2 700 F1UJS 4O7CC -07 (x2) 232430 -10 1351 LA1HU F1UJS IN94
UTC dB Audio Message 223430 -12 1582 F1UJS OS4K +00 223430 -9 1769 D44TWO F1UJS IN94 (x2) 223515 -18 1770 F1UJS D44TWO -04 (x2) 223600 -13 1769 D44TWO F1UJS 73 223645 -6 1653 F1UJS LA7DMA -15 223715 -19 1769 SM7TZK F1UJS IN94 224445 -6 489 XV9B F1UJS IN94 225915 -4 1102 TJ1GD F1UJS IN94 (x4) 230345 -9 2150 EA8UP F1UJS R-14 230545 -6 2150 UA2FFD F1UJS IN94
UTC dB Audio Message 192500 -8 916 ER1CW F1UJS IN94 (x2) 192545 -11 1670 F1UJS ER1CW -15 192600 -11 915 ER1CW F1UJS R-13 192615 -10 1670 F1UJS ER1CW RR73 192630 -9 915 ER1CW F1UJS 73 192745 -13 916 F4INZ F1UJS IN94 192845 -13 916 TF1A F1UJS IN94 192900 -14 1276 F1UJS TF1A -16 192915 -10 915 TF1A F1UJS R-05 192930 -13 1275 F1UJS TF1A RR73 192945 -11 916 TF1A F1UJS 73 193100 -7 916 YU9MBA F1UJS IN94 (x3)
UTC dB Audio Message 221345 -9 2279 F1UJS EA6Y -01 (x2) 221430 -17 954 EA6Y F1UJS 73
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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