IU3QFU — 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 IU3QFU, decoded by SO8OO in southeastern Poland. 91 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-11-06.
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 91 FT8 messages attributed to IU3QFU as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (99%), followed by 20 m (1%). In this small sample, the estimated median decoder S/N was -6 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-11-06 07:09 UTC
Observed FT8 message patterns
- Attributed sample
- 91 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -13 to -1 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 64.
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 IU3QFU in decoded directed-looking exchanges:
Most frequent locator attributed to IU3QFU
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 · 39 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 945 km (approx.)
- Last such locator decoded
- 2026-11-06 07:00 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 | IU3QFU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-06 07:07 | 40m | -4 / - | TC5ATA | - / -25 | 2 | Partial capture |
| 11-06 07:05 | 40m | -6 / +2 | S55A | -2 / -1 | 7 | ✓ Full exchange observed |
| 11-06 07:04 | 40m | -2 / -10 | SP9SOS | -12 / -11 | 5 | ✓ Full exchange observed |
| 11-06 07:03 | 40m | -6 / - | DH1HF | - / -14 | 2 | ✓ Closing fragment |
| 11-06 07:02 | 40m | -8 / - | SP3IPA | -5 / -1 | 3 | ✓ Closing observed |
| 11-06 07:00 | 40m | -6 / - | EB3DBR | - / -1 | 3 | ✓ Closing fragment |
| 11-06 06:53 | 40m | -4 / - | D44PX | - / - | 3 | Partial capture |
| 11-06 06:46 | 40m | -6 / - | IW0HIQ | - / - | 4 | Partial capture |
| 11-06 06:43 | 40m | -8 / - | PD4RJ | - / - | 2 | Partial capture |
| 11-06 06:41 | 40m | -5 / -4 | SP5CJQ | 0 / +2 | 5 | ✓ Full exchange observed |
| 11-06 06:36 | 40m | -3 / - | F1UNR | - / -5 | 3 | ✓ Closing fragment |
| 11-06 06:33 | 40m | -1 / -6 | F4FSY | -12 / +3 | 4 | ✓ Full exchange observed |
| 11-06 06:31 | 40m | -2 / +6 | DL0FAW | +2 / +8 | 5 | ✓ Full exchange observed |
| 11-06 06:28 | 40m | -6 / - | EG1PR | - / +4 | 4 | ✓ Closing fragment |
| 11-06 06:26 | 40m | -6 / +4 | IR0PG | -10 / +6 | 4 | ✓ Full exchange observed |
| 11-06 06:18 | 40m | -4 / - | F4DIA | - / -12 | 2 | Partial capture |
| 11-06 06:15 | 40m | -9 / -13 | F4DIA | -4 / -12 | 4 | Partial capture |
| 11-06 06:02 | 40m | -7 / - | SP6FME | -8 / +3 | 4 | ✓ Closing observed |
| 11-06 06:00 | 40m | - / - | OK2FKU | +10 / - | 2 | ✓ Closing fragment |
| 11-06 05:55 | 40m | -8 / - | W5THT | - / -6 | 4 | Partial capture |
| 11-06 05:51 | 40m | -7 / - | PF40EUDXF | - / - | 2 | Partial capture |
| 11-06 05:48 | 40m | +2 / - | RL1I/P | - / -24 | 2 | Partial capture |
| 11-06 05:19 | 40m | -8 / - | J88IH | - / - | 2 | Partial capture |
| 11-06 05:16 | 40m | -6 / - | KO4FQW | - / -18 | 4 | Partial capture |
| 11-06 05:15 | 40m | -7 / - | R6SS | - / -13 | 2 | ✓ Closing fragment |
| 11-06 05:13 | 40m | -4 / - | TI4LAS | - / -12 | 4 | ✓ Closing fragment |
| 11-06 05:05 | 40m | -10 / - | TJ1GD | - / -11 | 5 | ✓ Closing fragment |
| 11-06 05:02 | 40m | -6 / - | TA2EE | - / -10 | 2 | ✓ Closing fragment |
| 11-06 04:59 | 40m | -16 / - | YO8RSL | - / +4 | 2 | ✓ Closing fragment |
| 11-06 04:55 | 40m | -10 / - | ND9M | - / -10 | 2 | Partial capture |
| 11-06 04:53 | 40m | -9 / - | OM8AND | - / +8 | 2 | ✓ Closing fragment |
| 11-06 04:51 | 40m | -14 / - | UT5VQ | - / -21 | 2 | Partial capture |
| 11-06 04:47 | 40m | -4 / - | DL70ESSEN | - / - | 2 | Partial capture |
| 11-02 20:03 | 40m | - / -16 | MW7HZQ | -14 / - | 2 | Partial capture |
| 11-02 20:00 | 40m | - / -4 | G8BCG | -8 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 070400 -8 1178 DH1HF IU3QFU RR73 070445 -15 1178 IU3QFU SP9SOS KN09 070500 -6 1178 SP9SOS IU3QFU -11 070515 -11 1178 IU3QFU SP9SOS R-10 070530 +1 1178 SP9SOS IU3QFU RR73 070545 -11 1178 IU3QFU SP9SOS 73 070545 +2 832 IU3QFU S55A JN65 (x3) 070700 -3 1178 TC5ATA IU3QFU -25 070730 -9 1178 S55A IU3QFU -01 070745 -8 832 IU3QFU S55A R+02 070800 -4 1178 S55A IU3QFU RR73 070815 -5 833 IU3QFU S55A 73 070900 -4 1178 TC5ATA IU3QFU -25
CW
No CW receptions recorded for this callsign in the last 30 days.
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