OK7SX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OK7SX, decoded by SO8OO in southeastern Poland. 71 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-03 and 2026-09-04.
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 71 FT8 messages attributed to OK7SX as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (87%), followed by 40 m (13%). In this small sample, the estimated median decoder S/N was +14 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-04 21:35 UTC
Observed FT8 message patterns
- Attributed sample
- 71 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- +14 dB
- Estimated 10th-90th percentile
- +1 to +23 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 71.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with OK7SX 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 OK7SX
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
- JN69 · 64 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 634 km (approx.)
- Last such locator decoded
- 2026-09-04 21:35 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 | OK7SX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-04 21:30 | 80m | +28 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-04 21:27 | 80m | +18 / - | VR2ZXP | - / - | 2 | Partial capture |
| 09-04 21:21 | 80m | +20 / - | VR2ZXP | - / - | 3 | Partial capture |
| 09-04 21:14 | 80m | +13 / - | RI1FJL | - / - | 4 | Partial capture |
| 09-04 20:51 | 80m | +20 / - | RI1FJL | - / - | 3 | Partial capture |
| 09-04 20:18 | 80m | +20 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-04 20:04 | 80m | +20 / - | RI1FJL | - / - | 3 | Partial capture |
| 09-04 19:47 | 80m | +17 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-04 19:39 | 80m | +7 / - | RI1FJL | - / - | 4 | Partial capture |
| 09-04 19:19 | 80m | +14 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-04 19:15 | 80m | +20 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-04 19:03 | 80m | +4 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-04 18:58 | 80m | +10 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-04 18:49 | 80m | +13 / - | RI1FJL | - / - | 10 | Partial capture |
| 09-04 18:34 | 80m | +24 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-04 18:30 | 80m | +12 / - | RI1FJL | - / - | 3 | Partial capture |
| 09-04 18:22 | 80m | +1 / -22 | HB9CZF | +2 / -4 | 5 | ✓ Full exchange observed |
| 09-04 18:17 | 80m | - / - | DF7AA | -9 / - | 3 | Partial capture |
| 09-04 18:09 | 80m | +3 / -12 | YO4GIY | 0 / - | 3 | ✓ Closing observed |
| 09-04 15:18 | 40m | +6 / - | M9YLR | - / +4 | 4 | ✓ Closing fragment |
| 09-04 15:14 | 40m | +9 / - | RI1FJL | - / - | 5 | Partial capture |
| 09-03 20:43 | 80m | - / - | EA1IOK | -9 / - | 3 | Partial capture |
| 09-03 20:41 | 80m | +9 / +2 | RL2F | +6 / -9 | 5 | ✓ Full exchange observed |
| 08-23 06:19 | 20m | - / -6 | N8HRZ | -10 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 081330 -14 1772 OK7SX EX7CQ -14
UTC dB Audio Message 205145 +23 2877 RI1FJL OK7SX JN69 (x7) 212100 +20 2924 VR2ZXP OK7SX JN69 (x5) 213015 +30 2815 RI1FJL OK7SX JN69 (x3)
UTC dB Audio Message 151415 +3 2346 RI1FJL OK7SX JN69 (x5) 151845 +17 2929 M9YLR OK7SX JN69 (x4) 152130 -19 2198 OK7SX F6FHZ JN18 152130 -16 1296 OK7SX F4FSY -02
UTC dB Audio Message 061900 -9 2605 OK7SX N8HRZ -06 (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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