IZ3OHR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ3OHR, decoded by SO8OO in southeastern Poland. 13 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-13.
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 13 FT8 messages attributed to IZ3OHR as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 80 m (23%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-13 21:18 UTC
Observed FT8 message patterns
- Attributed sample
- 13 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -8 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 8.
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 IZ3OHR in decoded directed-looking exchanges:
Most frequent locator attributed to IZ3OHR
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
- JN55 · 5 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 945 km (approx.)
- Last such locator decoded
- 2026-06-23 21:32 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 | IZ3OHR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 21:17 | 40m | -16 / - | R5AV | - / -21 | 2 | ✓ Closing fragment |
| 09-13 20:47 | 40m | - / - | TA3NK | -12 / - | 6 | Partial capture |
| 09-06 20:21 | 160m | - / -23 | OK1DXR | +3 / - | 15 | ✓ Closing fragment |
| 09-06 20:20 | 160m | - / -17 | OM1AN | -11 / - | 3 | ✓ Closing fragment |
| 06-23 21:37 | 80m | - / - | OE4MTI | +12 / - | 2 | Partial capture |
| 06-23 21:36 | 80m | - / - | RD7O | +1 / - | 2 | Partial capture |
| 06-23 21:32 | 80m | -9 / -7 | DK7UY | +10 / -6 | 5 | ✓ Full exchange observed |
| 06-23 20:47 | 40m | - / - | UX7QV | -16 / - | 2 | Partial capture |
| 06-23 20:46 | 40m | - / - | DL7ACA | -5 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 204600 -6 1317 IZ3OHR DL7ACA JO40 (x3) 204730 -16 1318 IZ3OHR UX7QV KN29 (x2) 204730 -4 1084 IZ3OHR TA3NK KM39 (x6) 211745 -16 1366 R5AV IZ3OHR R-21 (x2)
UTC dB Audio Message 202145 -1 1295 IZ3OHR OK1DXR JO60 (x15)
UTC dB Audio Message 213200 -8 2617 CQ IZ3OHR JN55 213215 +7 2617 IZ3OHR DK7UY JO44 213230 -7 2617 DK7UY IZ3OHR -06 213245 +12 2617 IZ3OHR DK7UY R-07 213300 -11 2616 DK7UY IZ3OHR RR73 213315 +12 2617 IZ3OHR DK7UY 73 213600 +3 1182 IZ3OHR RD7O KN98 (x2) 213700 -2 1183 IZ3OHR <...> -05 213730 +15 1000 IZ3OHR OE4MTI JN87 213730 -1 1183 <IZ3OHR> II0RTER RR73 213930 +9 1000 IZ3OHR OE4MTI JN87
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