I0TPU — 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 I0TPU, decoded by SO8OO in southeastern Poland. 96 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-27 and 2026-10-17.
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 96 FT8 messages attributed to I0TPU as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (51%), followed by 40 m (49%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-17 05:54 UTC
Observed FT8 message patterns
- Attributed sample
- 96 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -18 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 45.
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 I0TPU 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 I0TPU
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
- JN61 · 40 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-10-17 05:53 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 | I0TPU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-17 05:53 | 60m | -17 / - | W8CO | - / -13 | 4 | ✓ Closing fragment |
| 10-17 05:49 | 60m | -16 / +1 | IK4CBO | -9 / -12 | 5 | ✓ Full exchange observed |
| 10-17 05:48 | 60m | -15 / +2 | 9A4ZM | -3 / - | 3 | ✓ Closing observed |
| 10-16 06:19 | 60m | -14 / -3 | EA1IOK | -7 / 0 | 6 | ✓ Full exchange observed |
| 10-16 06:18 | 60m | -18 / - | VP2MAW | - / -11 | 2 | ✓ Closing fragment |
| 10-12 06:14 | 60m | -16 / -12 | DK7ZT | -9 / - | 3 | ✓ Closing observed |
| 10-12 06:12 | 60m | -18 / - | 9H6C | - / -7 | 3 | ✓ Closing fragment |
| 10-07 06:21 | 40m | -2 / - | KE8ZMQ | - / -16 | 3 | ✓ Closing fragment |
| 10-07 06:11 | 40m | -10 / - | OA4ENG | - / - | 2 | ✓ Closing fragment |
| 10-07 06:07 | 40m | - / - | HG8LXL | +4 / - | 3 | Partial capture |
| 10-07 06:07 | 40m | - / - | US2YW | +2 / - | 2 | Partial capture |
| 10-07 06:04 | 40m | -6 / - | YV6BXN | - / -15 | 4 | ✓ Closing fragment |
| 10-07 06:00 | 40m | -8 / - | YV6BXN | - / - | 4 | Partial capture |
| 10-07 05:52 | 60m | -10 / - | KB9ZM | - / - | 4 | Partial capture |
| 10-07 05:47 | 60m | -11 / - | HI3QMT | - / - | 7 | Partial capture |
| 10-05 06:09 | 40m | -16 / - | GJ0KYZ | - / -13 | 2 | ✓ Closing fragment |
| 10-05 06:07 | 40m | -16 / - | KA1MXL | - / -22 | 3 | Partial capture |
| 10-05 06:05 | 40m | -7 / - | VE9LS | - / - | 2 | Partial capture |
| 10-05 06:03 | 40m | -6 / - | HG8LXL | - / -12 | 2 | Partial capture |
| 10-05 06:02 | 40m | 0 / +8 | 9A4ZM | -20 / -12 | 4 | ✓ Full exchange observed |
| 10-05 05:59 | 40m | -6 / - | EA1IOK | - / -10 | 2 | ✓ Closing fragment |
| 10-05 05:59 | 40m | - / - | IU8RFW | -23 / - | 3 | Partial capture |
| 10-05 05:59 | 40m | 0 / -4 | YO6LM | -16 / -12 | 7 | ✓ Full exchange observed |
| 10-05 05:59 | 40m | -4 / -7 | DL9ATW | -13 / -5 | 6 | ✓ Full exchange observed |
| 10-05 05:58 | 40m | -6 / +7 | SP6AXW | -16 / -15 | 4 | ✓ Full exchange observed |
| 10-05 05:56 | 40m | -3 / - | KB5YNF | - / -19 | 3 | ✓ Closing fragment |
| 10-05 05:54 | 40m | - / - | YO6LM | -14 / - | 2 | Partial capture |
| 10-05 05:51 | 40m | -9 / - | J88IH | - / -17 | 6 | ✓ Closing fragment |
| 10-04 05:26 | 60m | -10 / - | CE3TSK | - / - | 2 | Partial capture |
| 10-04 05:23 | 60m | -7 / - | ZL2AGY | - / -17 | 3 | ✓ Closing fragment |
| 10-03 05:40 | 60m | -10 / -14 | F5MXH | -13 / -9 | 5 | ✓ Full exchange observed |
| 10-03 05:38 | 60m | - / - | F5RRS | +6 / - | 4 | Partial capture |
| 10-03 05:37 | 60m | -9 / - | ZL4OL | - / -13 | 5 | ✓ Closing fragment |
| 10-03 05:36 | 60m | -9 / - | W4CHA | - / -10 | 4 | ✓ Closing fragment |
| 10-03 05:32 | 60m | -11 / - | ZL2CC | - / -9 | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 062030 -6 583 I0TPU EA1IOK 73 054500 -12 1432 ZL3GAV I0TPU JN61 054645 -15 778 I0TPU IZ4JMA R-07 054845 -3 1429 I0TPU 9A4ZM R+02 054900 -15 1433 9A4ZM I0TPU RR73 054915 -3 1429 I0TPU 9A4ZM 73 054945 -12 2176 I0TPU IK4CBO JN54 055000 -13 1433 IK4CBO I0TPU -12 055015 -7 2176 I0TPU IK4CBO R+01 055030 -19 1433 IK4CBO I0TPU RR73 055045 -7 2176 I0TPU IK4CBO 73 055315 -18 1433 W8CO I0TPU JN61 (x4)
UTC dB Audio Message 060645 -5 1439 YV6BXN I0TPU 73 060700 +1 1439 I0TPU US2YW KN28 060700 +5 1421 I0TPU HG8LXL KN06 060730 +2 1439 I0TPU US2YW KN28 060730 +2 1421 I0TPU HG8LXL KN06 (x2) 060845 -9 1439 OA4ENG I0TPU JN61 (x2) 061145 -9 1439 ZL3TUX I0TPU JN61 061245 -11 1439 OA4ENG I0TPU 73 062015 +0 1439 KB3DQI I0TPU 73 062100 -5 1439 KE8ZMQ I0TPU R-16 (x3) 062330 -3 1439 F6FHZ I0TPU -16
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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