OH2OJA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OH2OJA, decoded by SO8OO in southeastern Poland. 47 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-07.
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 47 FT8 messages attributed to OH2OJA as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (79%), followed by 40 m (11%) and 20 m (11%). Most decodes (81%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was 0 dB.
Overview
Bands
Last attributed message: 2026-09-07 23:37 UTC
Observed FT8 message patterns
- Attributed sample
- 47 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- 0 dB
- Estimated 10th-90th percentile
- -15 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 34.
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 OH2OJA 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 OH2OJA
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
- KP20 · 22 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,192 km (approx.)
- Last such locator decoded
- 2026-09-07 23:37 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 | OH2OJA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-07 23:35 | 80m | +5 / -6 | HA7TM | +18 / +7 | 5 | ✓ Full exchange observed |
| 09-07 23:31 | 80m | +7 / - | GM0OPS | - / +6 | 3 | ✓ Closing fragment |
| 09-07 23:29 | 80m | +3 / -10 | ON4MAP | -19 / -19 | 4 | ✓ Full exchange observed |
| 09-07 23:28 | 80m | 0 / -12 | YO4NF | +28 / 0 | 4 | ✓ Full exchange observed |
| 09-07 23:26 | 80m | -3 / - | OV6ZM | +11 / +5 | 4 | ✓ Closing observed |
| 09-07 23:20 | 80m | +4 / - | UX5UO | - / +7 | 7 | Partial capture |
| 09-07 23:19 | 80m | -10 / -6 | 9A3AUH | +9 / -1 | 5 | ✓ Full exchange observed |
| 09-07 23:17 | 80m | -3 / -16 | SM7TZK | +8 / -5 | 6 | ✓ Full exchange observed |
| 09-05 06:33 | 40m | -16 / -16 | DK5UR | -4 / -5 | 4 | ✓ Full exchange observed |
| 09-05 06:30 | 40m | -16 / - | IU4SQE | - / - | 2 | Partial capture |
| 08-24 15:03 | 20m | - / +1 | G0SBN | -12 / - | 2 | Partial capture |
| 08-21 09:16 | 20m | -9 / - | KP3H | - / - | 2 | Partial capture |
| 08-15 19:40 | 80m | -14 / -11 | SQ2BXI | +18 / - | 3 | ✓ Closing observed |
| 08-03 18:39 | 80m | +1 / -13 | SQ2BXI | +19 / +2 | 10 | ✓ Full exchange observed |
| 08-02 15:01 | 40m | - / -2 | OK5AG/P | -15 / - | 2 | ✓ Closing fragment |
| 07-30 21:24 | 20m | - / -7 | CX6TU | -13 / - | 2 | ✓ Closing fragment |
| 07-26 16:58 | 40m | - / -12 | DL9SAD | -16 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 232830 +25 2791 OH2OJA YO4NF RR73 232845 +6 2792 YO4NF OH2OJA 73 232930 +3 2792 ON4MAP OH2OJA KP20 232945 -19 1322 OH2OJA ON4MAP -10 233000 +1 2792 ON4MAP OH2OJA R-19 (x2) 233130 +6 2792 GM0OPS OH2OJA KP20 (x3) 233500 +6 2792 HA7TM OH2OJA KP20 233515 +17 2792 OH2OJA HA7TM -06 233530 +4 2792 HA7TM OH2OJA R+07 233545 +18 2792 OH2OJA HA7TM RR73 233600 +5 2792 HA7TM OH2OJA 73 233715 -6 2792 T77NC OH2OJA KP20
UTC dB Audio Message 165800 -17 1539 OH2OJA DL9SAD JN48 (x2) 183230 -9 1706 OH2OJA LZ2XF -13 150130 -18 1684 OH2OJA OK5AG/P -02 (x2) 201045 -10 2763 BI2QMT OH2OJA KP20 070500 -10 2699 OH2OJA GJ0KYZ 73 063000 -17 2267 IU4SQE OH2OJA KP20 (x2) 063330 -3 691 OH2OJA DK5UR -16 063345 -17 2268 DK5UR OH2OJA R-05 063400 -4 691 OH2OJA DK5UR RR73 063415 -16 2268 DK5UR OH2OJA 73 224515 +0 2033 OH2OJA IK4TVP RR73
UTC dB Audio Message 171430 -18 1187 OH2OJA 4S7AB -18 212415 -14 1996 OH2OJA CX6TU -07 (x2) 091615 -9 2831 KP3H OH2OJA KP20 (x2) 150300 -11 319 OH2OJA G0SBN +01 (x2) 110815 -9 2793 N1NK OH2OJA KP20 124345 -11 2972 GB4LD OH2OJA KP20
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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