DO1YSF — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving DO1YSF, decoded by SO8OO in southeastern Poland. 288 FT8 messages attributed to this token as transmitter, on 160m, 80m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-11-01.
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 288 FT8 messages attributed to DO1YSF as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (94%), followed by 160 m (4%) and 10 m (2%). Most decodes (58%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14.2 dB.
Overview
Bands
Last attributed message: 2026-11-01 17:06 UTC
Observed FT8 message patterns
- Attributed sample
- 288 messages
- Active dates
- 26 UTC dates
- Estimated median S/N
- -14.2 dB
- Estimated 10th-90th percentile
- -23 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 131, moderate (-15 to -9 dB) 109, strong (≥ -8 dB) 48.
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 DO1YSF 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 DO1YSF
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
- JO61 · 191 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 642 km (approx.)
- Last such locator decoded
- 2026-11-01 17:06 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 | DO1YSF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-01 18:21 | 80m | - / -9 | DK5DW | -4 / - | 2 | Partial capture |
| 11-01 17:06 | 80m | -10 / -6 | II4GCLB | -6 / -3 | 3 | Partial capture |
| 11-01 17:02 | 80m | -17 / -25 | DL8GBR | -7 / - | 2 | ✓ Closing observed |
| 10-31 05:45 | 80m | - / -6 | DO1OAS | -1 / - | 3 | ✓ Closing fragment |
| 10-31 05:30 | 80m | -7 / -10 | E75W | +2 / 0 | 6 | ✓ Full exchange observed |
| 10-31 05:26 | 80m | -10 / - | EC6DX | - / - | 2 | Partial capture |
| 10-31 05:22 | 80m | -11 / -8 | OK2CNI | +6 / -7 | 10 | ✓ Full exchange observed |
| 10-31 05:13 | 160m | -21 / - | DL2HT | - / - | 2 | Partial capture |
| 10-31 05:12 | 160m | -20 / - | OH5KNL | - / - | 2 | Partial capture |
| 10-14 19:19 | 80m | -5 / - | YL3GQ | - / -23 | 3 | ✓ Closing fragment |
| 10-14 19:16 | 80m | -11 / - | SK5AA | - / - | 4 | Partial capture |
| 10-14 19:14 | 80m | -13 / - | M9DNC | - / -19 | 3 | ✓ Closing fragment |
| 10-14 18:59 | 80m | -3 / -7 | PA3GAE | +1 / +1 | 5 | ✓ Full exchange observed |
| 10-14 18:58 | 80m | -9 / -4 | DL9PN | +5 / +1 | 5 | ✓ Full exchange observed |
| 10-14 18:56 | 80m | -6 / - | CU2AP | - / - | 2 | Partial capture |
| 10-14 18:31 | 80m | -8 / - | DD0IPA | -9 / - | 2 | ✓ Closing observed |
| 10-14 18:09 | 80m | -13 / - | PG9S | -13 / -5 | 2 | Partial capture |
| 10-14 18:08 | 80m | -10 / - | EI3ENB | - / - | 2 | ✓ Closing fragment |
| 10-13 19:49 | 80m | -14 / - | SP4OIK | -19 / -5 | 2 | Partial capture |
| 10-13 19:41 | 80m | - / -19 | DG4LXM | +2 / - | 4 | Partial capture |
| 10-13 19:33 | 80m | - / -18 | IK2TPX | -4 / - | 2 | ✓ Closing fragment |
| 10-13 19:23 | 80m | -11 / -4 | DD0IPA | -4 / +1 | 6 | ✓ Full exchange observed |
| 10-12 18:05 | 80m | -12 / -9 | IU2WCY | -17 / -8 | 3 | ✓ Full exchange observed |
| 10-10 21:35 | 80m | -9 / - | DH2LM | - / - | 2 | Partial capture |
| 10-09 18:50 | 80m | -10 / -1 | DO7MEW | -7 / -2 | 5 | ✓ Full exchange observed |
| 10-09 18:35 | 80m | -10 / - | IU0TYC | - / - | 2 | Partial capture |
| 10-09 18:25 | 80m | -13 / -11 | DL0NS | -7 / -8 | 8 | ✓ Full exchange observed |
| 10-09 18:20 | 80m | -14 / -21 | SQ5ANT | +12 / - | 3 | ✓ Closing observed |
| 10-04 18:44 | 80m | -20 / - | 1F3SW | - / - | 2 | Partial capture |
| 10-01 05:51 | 80m | -19 / - | KE4EB | - / - | 3 | Partial capture |
| 10-01 05:50 | 80m | -20 / - | ON1JP | - / -8 | 2 | ✓ Closing fragment |
| 10-01 05:45 | 80m | -24 / - | AI4EY | - / - | 3 | Partial capture |
| 10-01 05:41 | 80m | -23 / - | SN100PKP | - / +2 | 3 | Partial capture |
| 10-01 05:39 | 80m | - / -7 | DO7RMS | +4 / - | 3 | ✓ Closing fragment |
| 10-01 05:38 | 80m | - / -5 | SM5CBM | -2 / - | 2 | Partial capture |
| 09-30 07:00 | 80m | - / +5 | DL0ERZ | -16 / - | 3 | ✓ Closing fragment |
| 09-29 16:29 | 80m | -12 / - | OH1XE | - / - | 3 | Partial capture |
| 09-29 16:26 | 80m | -18 / +5 | DL0IPA | +1 / +5 | 6 | ✓ Full exchange observed |
| 09-27 18:08 | 80m | - / -19 | S51SU | -3 / - | 2 | ✓ Closing fragment |
| 09-25 22:59 | 80m | -14 / -11 | OH3GBW | -9 / -10 | 4 | ✓ Full exchange observed |
| 09-25 22:53 | 80m | -10 / - | VO1HP | - / - | 2 | Partial capture |
| 09-25 22:45 | 80m | -10 / 0 | DO5PY | -8 / -9 | 4 | ✓ Full exchange observed |
| 09-25 22:41 | 80m | -4 / - | KP4AA | - / - | 2 | Partial capture |
| 09-25 22:33 | 80m | -16 / - | G0ORC | - / -4 | 2 | ✓ Closing fragment |
| 09-25 22:30 | 80m | -13 / - | 4X1VE | - / - | 3 | Partial capture |
| 09-25 22:25 | 80m | -16 / -11 | IZ2KPE | 0 / +1 | 5 | ✓ Full exchange observed |
| 09-25 22:23 | 80m | -12 / - | EA3AKY | - / -8 | 3 | ✓ Closing fragment |
| 09-25 22:14 | 80m | -10 / -5 | SN4K | -6 / -6 | 7 | ✓ Full exchange observed |
| 09-25 22:13 | 80m | -10 / -20 | G4SRT | -11 / -10 | 5 | ✓ Full exchange observed |
| 09-25 22:09 | 80m | -6 / -7 | T77RN | -6 / - | 4 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 053315 -18 1844 NF1Z DO1YSF JO61 053415 -12 1844 K1JX DO1YSF JO61 054500 +0 1845 DO1YSF DO1OAS JO51 (x3) 055215 -22 1880 EC6DX DO1YSF 73 165300 -10 1755 CQ DO1YSF JO61 a1 165430 -13 1755 DO6KGS DO1YSF RR73 170245 -7 1755 DO1YSF DL8GBR R-25 170300 -17 1755 DL8GBR DO1YSF RR73 170600 -8 1755 <II4GCLB> DO1YSF JO61 170615 -6 1301 DO1YSF II4GCLB -06 170630 -11 1755 II4GCLB DO1YSF R-03 182100 +1 1206 DO1YSF DK5DW JN68 (x2)
UTC dB Audio Message 194430 -7 2235 DO1YSF DL2AND JO60 (x3) 195700 -9 2784 DO1YSF LX1JX -07 200015 -24 1950 ON6DL DO1YSF JO61 190145 -24 1805 CQ DO1YSF JO61 190445 -18 1805 IW4AOT DO1YSF JO61 050945 -16 1850 ON8WR DO1YSF RR73 051045 -20 1849 Z35Z DO1YSF JO61 051130 -24 1928 IV3WMS DO1YSF JO61 051215 -20 1929 OH5KNL DO1YSF JO61 (x2) 051315 -21 1929 DL2HT DO1YSF JO61 (x2) 051530 -22 1929 HA8BT DO1YSF JO61
UTC dB Audio Message 084945 -21 1404 DO1YSF TA1SW -08 160630 -17 1748 <...> DO1YSF JO61 (x2) 161000 -14 1748 F4BJN DO1YSF -15 161100 -10 1747 ZZ5X DO1YSF JO61 (x2) 125900 -20 2015 DO1YSF F5SJC JN05 (x2) 150200 +10 2736 DO1YSF CN8WK -10 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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