OK2NMA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OK2NMA, decoded by SO8OO in southeastern Poland. 109 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-07-25.
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 109 FT8 messages attributed to OK2NMA as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 80 m (28%) and 20 m (3%). Most decodes (83%) 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 (70%); the estimated median was -5 dB.
Overview
Bands
Last attributed message: 2026-07-25 23:36 UTC
Observed FT8 message patterns
- Attributed sample
- 109 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -17 to +10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 76.
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 OK2NMA 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 OK2NMA
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
- JN89 · 46 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 348 km (approx.)
- Last such locator decoded
- 2026-07-25 23:36 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 | OK2NMA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-25 23:35 | 40m | -13 / - | VU4R | - / - | 2 | Partial capture |
| 07-25 23:30 | 40m | - / -9 | UA9CR | -10 / - | 2 | ✓ Closing fragment |
| 07-25 23:02 | 80m | +10 / -2 | DO3BOX | -4 / -2 | 6 | ✓ Full exchange observed |
| 07-25 23:01 | 80m | +10 / - | 9A4ZM | +11 / +1 | 4 | Partial capture |
| 07-25 23:01 | 80m | +12 / -2 | DL3HN | -13 / -7 | 5 | ✓ Full exchange observed |
| 07-25 22:57 | 80m | +3 / -3 | IQ4JO | +16 / 0 | 5 | ✓ Full exchange observed |
| 07-25 22:57 | 80m | +12 / -14 | PH7GD | -7 / -9 | 8 | ✓ Full exchange observed |
| 07-25 22:56 | 80m | +2 / - | IN3WZS | - / -3 | 2 | Partial capture |
| 07-25 22:49 | 80m | - / - | IN3WZS | 0 / - | 3 | Partial capture |
| 07-25 22:48 | 80m | - / - | 9A4ZM | +12 / - | 2 | Partial capture |
| 07-25 22:47 | 80m | +3 / - | R5AV | +13 / +1 | 3 | ✓ Closing observed |
| 07-25 22:45 | 80m | +8 / -7 | SP5DAA | -4 / -12 | 4 | ✓ Full exchange observed |
| 07-25 22:45 | 80m | +2 / -20 | EB1LA | -12 / -8 | 7 | ✓ Full exchange observed |
| 07-25 22:43 | 80m | +9 / -14 | 9V1YC | -8 / -7 | 5 | ✓ Full exchange observed |
| 07-25 22:35 | 40m | -7 / - | OA4ENG | - / -19 | 5 | ✓ Closing fragment |
| 07-25 22:30 | 40m | -8 / - | CA6SNT | - / -22 | 7 | Partial capture |
| 07-25 22:25 | 40m | -6 / -16 | R6FX | -10 / -7 | 5 | ✓ Full exchange observed |
| 07-25 22:23 | 40m | -5 / - | LU8VLE | - / -18 | 3 | ✓ Closing fragment |
| 07-25 22:17 | 40m | -7 / - | LU8VLE | - / -18 | 6 | Partial capture |
| 07-25 22:13 | 40m | -7 / - | LU1QBH | - / - | 5 | Partial capture |
| 07-25 16:19 | 20m | - / -1 | OH3OJ | -7 / - | 2 | ✓ Closing fragment |
| 07-25 13:55 | 20m | - / -1 | EA3IJA | +2 / - | 2 | Partial capture |
| 07-25 13:53 | 20m | - / -8 | RN6MA | -7 / - | 3 | ✓ Closing fragment |
| 07-25 13:46 | 20m | - / 0 | EB3JT | -4 / - | 3 | ✓ Closing fragment |
| 07-25 13:46 | 20m | - / -24 | F4FSY | -8 / - | 3 | Partial capture |
| 07-25 12:47 | 20m | - / -3 | CN2DX | -9 / - | 2 | ✓ Closing fragment |
| 07-23 20:16 | 40m | -9 / 0 | TK5K | -7 / - | 3 | ✓ Closing observed |
| 07-23 19:03 | 40m | -14 / - | VJ6X | - / - | 2 | Partial capture |
| 07-23 18:52 | 80m | +9 / -10 | ON4CFB | -16 / -8 | 5 | ✓ Full exchange observed |
| 07-23 18:35 | 40m | -14 / - | BU2FW | - / -15 | 4 | ✓ Closing fragment |
| 07-23 18:33 | 40m | -13 / - | RL2F | - / -8 | 3 | ✓ Closing fragment |
| 07-23 17:39 | 40m | -16 / - | <...> | - / -1 | 2 | Partial capture |
| 07-23 07:52 | 20m | - / -6 | TK5K | -2 / - | 2 | ✓ Closing fragment |
| 07-23 07:48 | 20m | -18 / -6 | EC3A | -22 / - | 6 | ✓ Closing observed |
| 07-23 07:48 | 20m | - / - | F5RRS | -8 / - | 4 | Partial capture |
| 07-23 07:47 | 20m | - / -5 | S55X | -2 / - | 2 | ✓ Closing fragment |
| 07-23 06:46 | 20m | -22 / - | ZL4TT | - / - | 2 | Partial capture |
| 07-23 06:13 | 40m | -23 / - | EC3A | - / -5 | 3 | Partial capture |
| 07-23 06:12 | 40m | -23 / - | F5LMJ | - / -10 | 2 | ✓ Closing fragment |
| 07-23 06:08 | 40m | -17 / - | VE2LBI | - / -14 | 4 | Partial capture |
| 07-12 17:57 | 40m | -12 / - | VU3OSA | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 223130 -8 2484 CA6SNT OK2NMA R-22 (x4) 223500 -6 2484 OA4ENG OK2NMA JN89 (x5) 232445 -4 824 OK2NMA UA9CR -11 (x3) 233215 -16 2484 OK2NMA EB3JT JN01 233530 -12 2485 VU4R OK2NMA JN89 (x2)
UTC dB Audio Message 230215 -13 1503 OK2NMA DL3HN R-02 230230 +11 2449 DL3HN OK2NMA RR73 230245 -4 1897 OK2NMA DO3BOX -02 230245 -14 1503 OK2NMA DL3HN 73 230300 +11 2449 9A4ZM OK2NMA +01 230315 -9 1897 OK2NMA DO3BOX -02 230330 +9 2449 9A4ZM OK2NMA +01 230345 +0 1897 OK2NMA DO3BOX -02 230400 +10 2449 9A4ZM OK2NMA +01 230430 +12 2449 DO3BOX OK2NMA R-02 230515 -4 1897 OK2NMA DO3BOX RR73 230530 +9 2449 DO3BOX OK2NMA 73 230600 +12 2449 CQ OK2NMA JN89 (x3)
UTC dB Audio Message 124700 -6 1779 OK2NMA CN2DX -03 (x2) 134645 -8 1902 OK2NMA F4FSY -24 134645 -4 2633 OK2NMA EB3JT JN01 134715 -7 1902 OK2NMA F4FSY -24 134715 -6 2633 OK2NMA EB3JT R+00 (x2) 134815 -8 1902 OK2NMA F4FSY -15 135315 -4 2634 OK2NMA RN6MA -08 (x3) 135545 +2 2633 OK2NMA EA3IJA JN11 (x2) 161900 -7 598 OK2NMA OH3OJ -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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