DO6JSA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DO6JSA, decoded by SO8OO in southeastern Poland. 1,390 FT8 messages attributed to this token as transmitter, on 80m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-13 and 2026-08-20.
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 1,390 FT8 messages attributed to DO6JSA as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Most decodes (83%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-08-20 19:10 UTC
Observed FT8 message patterns
- Attributed sample
- 1,390 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -24 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 461, moderate (-15 to -9 dB) 493, strong (≥ -8 dB) 436.
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 DO6JSA 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 DO6JSA
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
- JN48 · 969 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 941 km (approx.)
- Last such locator decoded
- 2026-08-20 19:10 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 | DO6JSA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-28 09:27 | 10m | - / -4 | CU2AP | -14 / - | 2 | ✓ Closing fragment |
| 08-28 07:35 | 10m | - / -19 | IZ3NVR | -13 / - | 2 | ✓ Closing fragment |
| 08-20 19:17 | 80m | - / - | DL1HDL | -1 / - | 9 | Partial capture |
| 08-20 19:14 | 80m | - / - | DK0ACI | -8 / - | 4 | Partial capture |
| 08-20 19:07 | 80m | -17 / -13 | OK7MZ | -3 / - | 11 | Partial capture |
| 08-20 18:58 | 80m | - / 0 | DO9MKN | -4 / - | 11 | Partial capture |
| 08-20 18:57 | 80m | - / -12 | IU6KKW | -8 / - | 2 | ✓ Closing fragment |
| 08-19 03:52 | 80m | -22 / -15 | SP5DFK | +8 / - | 16 | Partial capture |
| 08-19 03:48 | 80m | -24 / - | F5LMJ | - / -18 | 3 | ✓ Closing fragment |
| 08-19 03:41 | 80m | -22 / -5 | YT3BL | +11 / - | 11 | ✓ Closing observed |
| 08-19 03:39 | 80m | -19 / -3 | F1TFT | +7 / +9 | 5 | ✓ Full exchange observed |
| 08-19 03:37 | 80m | -20 / +9 | S53R | +15 / - | 4 | ✓ Closing observed |
| 08-19 03:26 | 80m | -10 / -9 | LY2EW | +16 / -6 | 7 | ✓ Full exchange observed |
| 08-19 03:24 | 80m | -5 / 0 | F5OAM | -4 / - | 5 | ✓ Closing observed |
| 08-19 00:52 | 80m | - / -23 | RZ6ALZ | -10 / - | 2 | Partial capture |
| 08-19 00:35 | 80m | - / -1 | HB9CXZ | +8 / - | 2 | ✓ Closing fragment |
| 08-19 00:28 | 80m | -8 / -10 | YU7AS | +17 / +4 | 6 | ✓ Full exchange observed |
| 08-19 00:27 | 80m | - / -10 | RC2DD | -8 / - | 2 | ✓ Closing fragment |
| 08-19 00:18 | 80m | -9 / - | LA1HU | - / - | 6 | Partial capture |
| 08-19 00:09 | 80m | -11 / - | ON8FAB | - / -3 | 2 | Partial capture |
| 08-19 00:00 | 80m | -11 / +3 | LA2JKA | +8 / +6 | 5 | ✓ Full exchange observed |
| 08-18 23:58 | 80m | - / -22 | UA2FFD | -12 / - | 3 | Partial capture |
| 08-18 23:54 | 80m | -9 / -17 | UA2FFD | -10 / - | 5 | Partial capture |
| 08-18 23:49 | 80m | - / -17 | R3XBS | +6 / - | 2 | ✓ Closing fragment |
| 08-18 23:41 | 80m | -9 / - | R2BDR | - / - | 4 | Partial capture |
| 08-18 23:29 | 80m | -17 / +1 | ON6JN | -5 / +5 | 7 | ✓ Full exchange observed |
| 08-18 23:24 | 80m | -20 / -3 | DL9ATW | +2 / +6 | 6 | ✓ Full exchange observed |
| 08-18 23:22 | 80m | -22 / - | EA5OB | - / - | 6 | Partial capture |
| 08-18 23:17 | 80m | - / -3 | DH1VY | +3 / - | 2 | ✓ Closing fragment |
| 08-18 23:15 | 80m | -14 / -7 | MI7XHT | -2 / - | 3 | ✓ Closing observed |
| 08-18 23:14 | 80m | -19 / -12 | OK1SI | +16 / +3 | 4 | ✓ Full exchange observed |
| 08-18 23:10 | 80m | -6 / - | OV5OX | -16 / -16 | 5 | ✓ Closing observed |
| 08-18 22:58 | 80m | -2 / - | EA1RT | - / -8 | 4 | Partial capture |
| 08-18 22:55 | 80m | -22 / -7 | S57MPU | +17 / +8 | 5 | ✓ Full exchange observed |
| 08-18 22:44 | 80m | -10 / - | DK9WI | - / - | 2 | Partial capture |
| 08-18 22:41 | 80m | - / -9 | IT9BYL | -11 / - | 3 | ✓ Closing fragment |
| 08-18 22:32 | 80m | - / -15 | DL4KSD | -2 / - | 3 | ✓ Closing fragment |
| 08-18 22:24 | 80m | - / - | OM0CS | +12 / - | 2 | ✓ Closing fragment |
| 08-18 22:18 | 80m | - / -9 | OM0CS | +8 / - | 3 | Partial capture |
| 08-18 22:15 | 80m | -19 / - | EB7FSB | - / -11 | 4 | ✓ Closing fragment |
| 08-18 22:06 | 80m | - / - | DK1FS | 0 / - | 2 | Partial capture |
| 08-18 22:01 | 80m | -3 / 0 | G4FHL | -16 / - | 2 | Partial capture |
| 08-18 21:57 | 80m | -11 / - | M0PPT | - / - | 3 | Partial capture |
| 08-18 21:49 | 80m | -19 / - | DO9POL | - / - | 4 | Partial capture |
| 08-18 21:43 | 80m | - / - | DF1BN | +4 / - | 4 | Partial capture |
| 08-18 21:27 | 80m | +3 / -2 | EA4HPY | +8 / - | 6 | Partial capture |
| 08-18 21:24 | 80m | - / -13 | R8CW/4 | 0 / - | 2 | Partial capture |
| 08-18 21:24 | 80m | -7 / - | R2EA/P | - / -14 | 4 | Partial capture |
| 08-18 21:22 | 80m | -11 / - | R3VE | - / - | 2 | Partial capture |
| 08-18 21:18 | 80m | -12 / -9 | ON2BCB | -10 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 192330 -6 844 DO6JSA DL8NW -20 (x2) 185215 -16 2368 DO6JSA DD5GG R-19 202945 -24 1833 DO6JSA IU4PTA -15 (x3) 205730 -20 1429 DO6JSA F6FHZ JN18 (x2) 214245 -20 1615 DO6JSA CT1KNM +01 (x2) 073515 -13 1183 DO6JSA IZ3NVR -19 (x2) 092730 -13 1739 DO6JSA CU2AP -04 (x2) 103445 -17 1486 DO6JSA IK1LBL -01
UTC dB Audio Message 191130 -4 1588 DO6JSA OK7MZ -18 (x2) 191415 -9 307 DO6JSA DK0ACI JO30 (x4) 191715 +1 1003 DO6JSA DL1HDL JO53 (x9)
UTC dB Audio Message 211245 +2 1021 DO6JSA 9A4ZM JN86 (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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