IU4MTO — 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 IU4MTO, decoded by SO8OO in southeastern Poland. 41 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-27 and 2026-10-12.
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 41 FT8 messages attributed to IU4MTO as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 20 m (12%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-12 22:11 UTC
Observed FT8 message patterns
- Attributed sample
- 41 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -17 to -5 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 9.
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 IU4MTO in decoded directed-looking exchanges:
Most frequent locator attributed to IU4MTO
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
- JN64 · 26 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 897 km (approx.)
- Last such locator decoded
- 2026-10-12 22:10 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 | IU4MTO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-20 06:24 | 10m | - / -10 | 7Z1FF | -18 / - | 2 | ✓ Closing fragment |
| 10-12 22:03 | 40m | -11 / - | EY7BM | - / -8 | 15 | ✓ Closing fragment |
| 10-06 06:23 | 40m | -17 / - | F5OYA/P | - / - | 2 | ✓ Closing fragment |
| 10-06 06:20 | 40m | -12 / - | UT4PA | - / -11 | 3 | ✓ Closing fragment |
| 10-06 06:19 | 40m | -11 / -11 | YO4NT | 0 / +4 | 4 | ✓ Full exchange observed |
| 10-06 06:18 | 40m | -16 / - | DL4DP | - / +3 | 2 | ✓ Closing fragment |
| 10-06 06:11 | 40m | -13 / - | OA4ENG | - / -21 | 11 | Partial capture |
| 09-28 22:14 | 40m | - / +3 | F6FHZ | -16 / - | 3 | ✓ Closing fragment |
| 09-28 22:14 | 40m | - / +10 | PA2KV | +6 / - | 2 | ✓ Closing fragment |
| 08-27 22:25 | 20m | -2 / - | RI1FJL | - / -6 | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 220400 -10 2191 EY7BM IU4MTO JN64 (x14) 041000 -8 1919 IU4MTO CT9/DF7EE +02
UTC dB Audio Message 062430 -18 2271 IU4MTO 7Z1FF -10 (x2)
UTC dB Audio Message 222515 -5 2029 RI1FJL IU4MTO JN64 (x5)
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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