OK2TNB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OK2TNB, decoded by SO8OO in southeastern Poland. 73 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-07-26.
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 73 FT8 messages attributed to OK2TNB as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (78%), followed by 20 m (22%). Several six-hour UTC windows tied for the largest share (59%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-07-26 06:01 UTC
Observed FT8 message patterns
- Attributed sample
- 73 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -22 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 19.
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 OK2TNB 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 OK2TNB
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
- JN79 · 35 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 491 km (approx.)
- Last such locator decoded
- 2026-07-26 05:59 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 | OK2TNB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-26 05:59 | 40m | -21 / - | GM7JQK | - / - | 3 | ✓ Closing fragment |
| 07-26 05:35 | 40m | -15 / - | 8S7DL | - / +4 | 2 | ✓ Closing fragment |
| 07-26 05:31 | 40m | -21 / - | SQ8ECJ | - / - | 2 | ✓ Closing fragment |
| 07-26 05:29 | 40m | -22 / - | OE4BHF | -15 / - | 3 | ✓ Closing observed |
| 07-26 05:28 | 40m | -16 / - | F5BWS | - / - | 2 | ✓ Closing fragment |
| 07-26 05:26 | 40m | -18 / - | HA8RC | -22 / - | 4 | ✓ Closing observed |
| 07-25 21:37 | 40m | -14 / -6 | SP3RK | -20 / +8 | 4 | ✓ Full exchange observed |
| 07-25 21:36 | 40m | -15 / - | TF8KW | - / - | 2 | Partial capture |
| 07-25 21:31 | 40m | -13 / - | TF8KW | - / - | 3 | Partial capture |
| 07-25 21:25 | 40m | - / -14 | R2EA | -11 / - | 2 | Partial capture |
| 07-25 21:20 | 40m | -9 / - | S57AJ | -12 / - | 5 | ✓ Full exchange observed |
| 07-25 21:11 | 40m | - / -12 | I1WUA | -22 / - | 2 | ✓ Closing fragment |
| 07-25 21:07 | 40m | -4 / -2 | IN3WZS | +1 / - | 2 | Partial capture |
| 07-25 21:04 | 40m | -21 / -8 | PA2WDR | -22 / - | 4 | ✓ Full exchange observed |
| 07-25 21:01 | 40m | -10 / -5 | PA7D | -10 / +1 | 5 | ✓ Full exchange observed |
| 07-25 20:57 | 40m | - / - | PE1NPS | -12 / - | 4 | Partial capture |
| 07-25 20:56 | 40m | -8 / -15 | IK4LZH | -4 / - | 4 | ✓ Full exchange observed |
| 07-25 20:54 | 40m | -17 / +3 | YO3OBB | -11 / - | 2 | ✓ Closing observed |
| 07-25 20:52 | 40m | -22 / - | S59A | - / - | 2 | Partial capture |
| 07-25 20:26 | 20m | - / - | EA5JYL | -10 / - | 2 | Partial capture |
| 07-25 20:24 | 20m | - / -10 | RN6MA | -2 / - | 2 | Partial capture |
| 07-25 19:46 | 20m | - / -13 | UA6YW | +1 / - | 7 | Partial capture |
| 07-25 19:45 | 20m | - / -9 | M7JVT | -4 / - | 2 | ✓ Closing fragment |
| 07-25 14:24 | 20m | - / -7 | EA3IJA | +2 / - | 2 | ✓ Closing fragment |
| 07-25 14:14 | 20m | - / -3 | EA3ACQ | -8 / - | 2 | ✓ Closing fragment |
| 07-25 13:36 | 20m | - / +1 | IQ9SR | -20 / - | 2 | ✓ Closing fragment |
| 07-25 13:16 | 20m | - / -3 | M7INZ | -6 / - | 2 | ✓ Closing fragment |
| 07-25 12:57 | 20m | - / - | F1PSX | -4 / - | 2 | Partial capture |
| 07-21 06:11 | 10m | - / -1 | G7IGN | -18 / - | 2 | ✓ Closing fragment |
| 07-21 06:07 | 20m | -6 / - | A61DD | - / - | 4 | Partial capture |
| 07-21 06:04 | 20m | 0 / -11 | ON3KJU | -11 / - | 3 | ✓ Closing observed |
| 07-21 06:03 | 20m | +3 / - | YO6LM | - / +8 | 2 | ✓ Closing fragment |
| 07-21 06:00 | 20m | +3 / +1 | 5P1KZX | -16 / +5 | 5 | ✓ Full exchange observed |
| 07-21 05:56 | 20m | -5 / -13 | PD7RF | -8 / -7 | 6 | ✓ Full exchange observed |
| 07-21 05:45 | 40m | -16 / -9 | 9A4ZM | -7 / - | 4 | ✓ Full exchange observed |
| 07-21 05:38 | 40m | - / +1 | DL3MIB | -10 / - | 2 | Partial capture |
| 07-21 05:22 | 40m | - / -10 | SP6FME | 0 / - | 6 | ✓ Closing fragment |
| 07-21 05:21 | 40m | - / -12 | SP5HWB | -13 / - | 2 | ✓ Closing fragment |
| 07-21 05:13 | 40m | -24 / - | VE2OPR | - / - | 2 | Partial capture |
| 07-21 05:02 | 40m | - / -9 | LY1SR | -10 / - | 2 | ✓ Closing fragment |
| 07-21 04:46 | 40m | -24 / -19 | LZ1ZF | -13 / - | 2 | Partial capture |
| 07-21 04:31 | 40m | - / -6 | YO9HP | -20 / - | 2 | ✓ Closing fragment |
| 07-20 22:14 | 20m | - / -14 | IW1QQG | -12 / - | 2 | ✓ Closing fragment |
| 07-20 22:10 | 20m | - / -11 | YO4NF | 0 / - | 2 | ✓ Closing fragment |
| 07-20 18:38 | 20m | - / - | EB3JT | -4 / - | 5 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 052945 -22 1296 OE4BHF OK2TNB JN79 053030 -15 1296 OK2TNB OE4BHF RR73 053045 -22 1297 OE4BHF OK2TNB 73 053115 -21 1297 SQ8ECJ OK2TNB +18 (x2) 053545 -15 1040 8S7DL OK2TNB R+04 (x2) 053745 -24 1660 EA3NG OK2TNB JN79 054130 -7 663 DL2EEO OK2TNB JN79 (x2) 054700 -20 1957 SN1A OK2TNB R+18 054830 -23 1985 LZ3CB OK2TNB JN79 055945 -21 1841 GM7JQK OK2TNB JN79 (x3)
UTC dB Audio Message 194015 -9 677 OK2TNB M7JVT -09 (x3) 194645 -1 1595 OK2TNB UA6YW -13 (x7) 195530 -21 2073 OK2TNB IZ8VYU JN71 202445 -5 1469 OK2TNB RN6MA -10 (x2) 202615 -9 572 OK2TNB EA5JYL IM98 (x2)
UTC dB Audio Message 061115 -21 1692 OK2TNB G7IGN -01 (x2)
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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