UA1ABJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UA1ABJ, decoded by SO8OO in southeastern Poland. 50 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-28.
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 50 FT8 messages attributed to UA1ABJ as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (82%), followed by 40 m (16%) and 20 m (2%). Several six-hour UTC windows tied for the largest share (96%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (72%); the estimated median was -18 dB.
Overview
Bands
Last attributed message: 2026-08-28 22:02 UTC
Observed FT8 message patterns
- Attributed sample
- 50 messages
- Active dates
- 10 UTC dates
- Estimated median S/N
- -18 dB
- Estimated 10th-90th percentile
- -24 to -13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 36, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 1.
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 UA1ABJ 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 UA1ABJ
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
- KO49 · 29 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-08-22 20:22 UTC
Other locator fields attributed to this token: KO59 (6).
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 | UA1ABJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 18:52 | 40m | - / -12 | OZ7CL | -1 / - | 2 | ✓ Closing fragment |
| 09-02 02:38 | 40m | - / -6 | RC9WC | -5 / - | 3 | Partial capture |
| 09-02 02:37 | 40m | - / -14 | S52UF | -11 / - | 3 | Partial capture |
| 08-30 06:20 | 20m | - / - | RD6OZ | +14 / - | 3 | Partial capture |
| 08-29 19:22 | 20m | - / - | SV2AEL | +1 / - | 2 | ✓ Closing fragment |
| 08-28 22:01 | 80m | -20 / - | ER5DX | - / - | 2 | Partial capture |
| 08-28 22:00 | 80m | - / -13 | G8BCG | -7 / - | 2 | ✓ Closing fragment |
| 08-28 20:29 | 80m | - / -14 | RU3NCW | -2 / - | 2 | ✓ Closing fragment |
| 08-28 20:16 | 80m | - / - | SM5KNV | +3 / - | 2 | ✓ Closing fragment |
| 08-28 20:07 | 80m | - / -13 | ES0MVM | +1 / - | 2 | ✓ Closing fragment |
| 08-28 20:02 | 40m | - / - | SP6FME | +3 / - | 3 | Partial capture |
| 08-22 20:27 | 80m | - / -18 | SQ8NGI | +1 / - | 2 | ✓ Closing fragment |
| 08-22 20:24 | 80m | - / - | SM7HWD | -12 / - | 5 | Partial capture |
| 08-22 20:23 | 80m | - / -10 | LB6LK | +2 / - | 2 | ✓ Closing fragment |
| 08-22 20:15 | 80m | - / - | R4HHN | -8 / - | 2 | Partial capture |
| 08-22 20:14 | 80m | - / - | 9A4ZM | -3 / - | 3 | Partial capture |
| 08-22 18:49 | 80m | -12 / - | ES7GN | - / - | 2 | Partial capture |
| 08-22 18:37 | 80m | -8 / -19 | UA1OJL | -9 / - | 3 | ✓ Closing observed |
| 08-22 18:20 | 40m | - / -8 | DH2YBG | -6 / - | 3 | ✓ Closing fragment |
| 08-22 17:08 | 20m | - / - | IU5HIU | -2 / - | 10 | Partial capture |
| 08-22 17:08 | 20m | - / -16 | GM3AND | +10 / - | 2 | ✓ Closing fragment |
| 08-22 17:07 | 20m | - / -19 | M1WLK | +4 / - | 2 | Partial capture |
| 08-22 09:22 | 20m | - / -11 | G3YQA | +5 / - | 2 | ✓ Closing fragment |
| 08-22 07:45 | 20m | - / - | RA5AK | -14 / - | 3 | Partial capture |
| 08-22 02:20 | 40m | - / -9 | G8KHF | -12 / - | 2 | ✓ Closing fragment |
| 08-21 21:31 | 80m | -20 / -16 | GM0HTT | -1 / -21 | 3 | ✓ Full exchange observed |
| 08-21 21:27 | 80m | -15 / - | R3ICU | -14 / - | 3 | ✓ Closing observed |
| 08-21 21:24 | 80m | -17 / - | RK4FD | 0 / - | 3 | ✓ Closing observed |
| 08-21 21:23 | 80m | - / -16 | RU3T | 0 / - | 3 | ✓ Closing fragment |
| 08-15 07:33 | 20m | - / -19 | R4FDD | -15 / - | 2 | Partial capture |
| 08-15 07:30 | 20m | - / -1 | RA6FC | -12 / - | 4 | Partial capture |
| 08-14 21:16 | 40m | - / - | RQ2Q | -12 / - | 2 | ✓ Closing fragment |
| 08-14 21:09 | 80m | -16 / -12 | OI5AY | -1 / -8 | 6 | ✓ Full exchange observed |
| 08-14 20:12 | 80m | - / - | RA3PGR | +2 / - | 2 | Partial capture |
| 08-14 20:06 | 80m | - / +4 | OH1NOA | +4 / - | 2 | ✓ Closing fragment |
| 08-14 19:55 | 80m | - / - | DL6UM | +3 / - | 5 | Partial capture |
| 08-14 19:55 | 80m | - / - | SA4AGM | -9 / - | 8 | Partial capture |
| 08-14 19:01 | 20m | - / -1 | TM0BSM | -13 / - | 2 | ✓ Closing fragment |
| 08-14 18:50 | 20m | - / +2 | R4AAR | -17 / - | 2 | ✓ Closing fragment |
| 08-13 21:24 | 20m | - / +3 | UN0GY | -6 / - | 2 | Partial capture |
| 08-13 20:21 | 20m | - / -6 | MI7RDK | -1 / - | 2 | ✓ Closing fragment |
| 08-08 06:17 | 10m | - / - | R6TA | -12 / - | 4 | Partial capture |
| 08-02 06:42 | 20m | - / -8 | RV3DEP | -8 / - | 2 | Partial capture |
| 08-02 06:31 | 20m | - / - | R6LQU | -7 / - | 3 | Partial capture |
| 08-01 20:43 | 20m | - / +1 | F4VVJ | 0 / - | 3 | ✓ Closing fragment |
| 08-01 08:42 | 20m | - / -4 | RK4FH | -8 / - | 2 | ✓ Closing fragment |
| 07-25 20:13 | 20m | - / -15 | UA6YW | -2 / - | 4 | ✓ Closing fragment |
| 07-19 11:15 | 10m | - / +4 | RU3OZ | -12 / - | 2 | ✓ Closing fragment |
| 07-19 10:16 | 10m | - / - | PF1B | -10 / - | 2 | Partial capture |
| 07-18 20:27 | 20m | - / -15 | OK1WCF | -8 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 182215 -16 1827 UA1ABJ RA9CEO MO09 182345 -8 1929 UA1ABJ RX4SA LO36 182345 -17 1824 UA1ABJ RK3DSW -14 195730 -7 481 UA1ABJ ES4TIX RR73 200245 +7 1825 UA1ABJ SP6FME JO90 (x3) 023745 -10 1541 UA1ABJ S52UF JN76 (x2) 023815 -4 1842 UA1ABJ RC9WC -06 023845 -14 1541 UA1ABJ S52UF -14 023845 -5 1842 UA1ABJ RC9WC -06 (x2) 185215 -4 1260 UA1ABJ OZ7CL -12 (x2)
UTC dB Audio Message 170900 -1 562 UA1ABJ IU5HIU JN53 (x9) 192200 +1 2204 UA1ABJ SV2AEL KN10 (x2) 055900 +8 1892 UA1ABJ R4IK -14 062045 +13 1892 UA1ABJ RD6OZ KN98 (x3)
UTC dB Audio Message 202730 +0 1331 UA1ABJ SQ8NGI -18 (x2) 200730 -1 2777 UA1ABJ ES0MVM -13 (x2) 201630 +3 952 UA1ABJ SM5KNV +13 (x2) 202115 -5 2507 UA1ABJ RL7Z KN98 202915 +0 304 UA1ABJ RU3NCW -14 (x2) 203115 -3 2397 UA1ABJ R2EA/P RR73 203315 +3 483 UA1ABJ RM3TO -11 220015 -8 2443 UA1ABJ G8BCG -13 (x2) 220130 -21 1775 ER5DX UA1ABJ KO59 (x2)
UTC dB Audio Message 101600 -11 664 UA1ABJ PF1B JO22 (x2) 111545 -11 1954 UA1ABJ RU3OZ R+04 (x2) 075100 -7 2254 UA1ABJ SV2JAO RR73 061700 -14 794 UA1ABJ R6TA LN13 (x4)
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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