IU8TSR — 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 IU8TSR, decoded by SO8OO in southeastern Poland. 199 FT8 messages attributed to this token as transmitter, on 40m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-18.
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 199 FT8 messages attributed to IU8TSR as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -5 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 199 messages
- Active dates
- 19 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -16 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 141.
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 IU8TSR 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 IU8TSR
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
- JN70 · 111 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,175 km (approx.)
- Last such locator decoded
- 2026-10-18 19:02 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 | IU8TSR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-18 19:02 | 40m | -6 / - | 2E0MCP | - / -5 | 4 | Partial capture |
| 10-18 18:57 | 40m | -9 / - | RW3DDZ | - / -10 | 3 | Partial capture |
| 10-18 18:51 | 40m | - / -8 | IQ3TR | +8 / - | 2 | Partial capture |
| 10-18 18:47 | 40m | -4 / - | A61DD | - / -8 | 2 | Partial capture |
| 10-17 19:02 | 40m | -9 / -4 | TA2VUZ | -20 / -7 | 5 | ✓ Full exchange observed |
| 10-17 18:34 | 40m | -1 / - | PE1PYB | -13 / -11 | 4 | ✓ Closing observed |
| 10-17 18:33 | 40m | -4 / - | OR1A | - / - | 2 | Partial capture |
| 10-16 19:19 | 40m | -11 / - | LB8TG | - / -6 | 5 | Partial capture |
| 10-11 17:46 | 40m | -7 / - | IR8PR | -22 / -16 | 4 | ✓ Closing observed |
| 10-11 17:41 | 40m | -6 / - | Z62NS | - / - | 2 | Partial capture |
| 10-09 19:56 | 40m | - / -4 | F6FHZ | -9 / - | 2 | Partial capture |
| 10-09 19:55 | 40m | - / -2 | EX7CQ | -12 / - | 2 | ✓ Closing fragment |
| 10-09 19:50 | 40m | -12 / - | VK7AC | - / -4 | 2 | Partial capture |
| 10-09 19:45 | 40m | -6 / - | VK2ZLX | - / - | 3 | Partial capture |
| 10-09 19:41 | 40m | -3 / - | RU6UR/QRP | - / - | 3 | Partial capture |
| 10-09 19:40 | 40m | 0 / - | UN3P | - / - | 2 | Partial capture |
| 10-09 19:38 | 40m | -4 / - | MW0USK | - / - | 2 | Partial capture |
| 10-09 19:37 | 40m | -3 / -7 | AN5CV | -22 / - | 4 | ✓ Closing observed |
| 10-06 19:34 | 40m | - / - | UA4FKT | -1 / - | 3 | Partial capture |
| 10-06 19:34 | 40m | -2 / - | UN3P | - / -9 | 2 | ✓ Closing fragment |
| 10-06 19:28 | 40m | -2 / - | 7Z1IS | - / - | 2 | Partial capture |
| 10-06 19:26 | 40m | -8 / - | AM5CV | - / -1 | 2 | Partial capture |
| 10-06 19:23 | 40m | -2 / - | BD8ELZ | - / - | 4 | Partial capture |
| 10-06 19:21 | 40m | 0 / - | M7CWF | -18 / -23 | 3 | ✓ Closing observed |
| 10-06 19:15 | 40m | +6 / -9 | M7CWF | -16 / - | 3 | Partial capture |
| 10-06 19:11 | 40m | +8 / - | SP7AH | - / +4 | 3 | ✓ Closing fragment |
| 10-06 19:10 | 40m | +5 / +10 | HB9IOA | 0 / -24 | 8 | Partial capture |
| 10-04 18:47 | 40m | +2 / -5 | PA3AGN | -4 / -5 | 8 | ✓ Full exchange observed |
| 10-04 18:46 | 40m | - / 0 | PD9HIX | +8 / - | 2 | ✓ Closing fragment |
| 10-04 18:43 | 40m | +1 / -16 | RW3DDZ | -13 / -10 | 5 | ✓ Full exchange observed |
| 10-04 18:42 | 40m | -2 / -1 | M8DKY | -4 / -4 | 12 | ✓ Full exchange observed |
| 10-04 18:30 | 40m | -4 / -9 | M0MLS | -9 / -1 | 6 | ✓ Full exchange observed |
| 10-04 18:26 | 40m | -4 / - | IU3WOZ | - / - | 2 | Partial capture |
| 10-04 18:25 | 40m | -3 / - | BD8ELZ | - / - | 2 | Partial capture |
| 10-03 19:01 | 40m | -7 / - | A61FJ | - / - | 2 | Partial capture |
| 09-11 19:46 | 40m | -1 / - | EA1IQM | - / - | 3 | Partial capture |
| 09-11 19:44 | 40m | -1 / - | G6MTI | - / +2 | 4 | ✓ Closing fragment |
| 09-11 19:37 | 40m | +2 / -4 | GJ0KYZ | -2 / -3 | 6 | ✓ Full exchange observed |
| 09-11 19:33 | 40m | +1 / - | LZ2VQ | -5 / +1 | 5 | ✓ Closing observed |
| 09-11 19:31 | 40m | - / - | DJ0MAB | +4 / - | 2 | ✓ Closing fragment |
| 09-11 19:26 | 40m | 0 / +3 | MW6IUT | -16 / - | 4 | ✓ Closing observed |
| 09-11 19:24 | 40m | +3 / -7 | UA3VVA | -10 / - | 3 | Partial capture |
| 09-11 19:12 | 40m | -2 / - | UN7LEW | -4 / - | 5 | ✓ Closing observed |
| 09-01 19:29 | 40m | - / -8 | YO5EEE | -1 / - | 2 | ✓ Closing fragment |
| 09-01 19:20 | 40m | -5 / - | SP3IPA | - / -10 | 2 | Partial capture |
| 09-01 19:14 | 40m | +1 / - | RN6LPC | -6 / -7 | 2 | Partial capture |
| 09-01 19:12 | 40m | -1 / +2 | CT3IQ | -24 / -8 | 4 | Partial capture |
| 08-30 19:15 | 40m | +5 / - | JA5NSR | - / - | 2 | Partial capture |
| 08-30 18:48 | 40m | -4 / -10 | PA3GHJ | -2 / -2 | 5 | ✓ Full exchange observed |
| 08-30 18:46 | 40m | -6 / -3 | LY1DY | +4 / -2 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 190245 -21 1328 IU8TSR TA2VUZ -04 190300 -6 734 TA2VUZ IU8TSR R-07 190315 -19 1328 IU8TSR TA2VUZ RR73 190330 -13 733 TA2VUZ IU8TSR 73 184700 -5 733 A61DD IU8TSR JN70 (x2) 185130 +10 1251 IU8TSR IQ3TR -08 (x2) 185700 -11 734 RW3DDZ IU8TSR JN70 (x3) 190200 -6 733 2E0MCP IU8TSR JN70 (x4)
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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