IZ4FUA — 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 IZ4FUA, decoded by SO8OO in southeastern Poland. 348 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-11-03.
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 348 FT8 messages attributed to IZ4FUA as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (45%), followed by 80 m (22%) and 10 m (21%). Several six-hour UTC windows tied for the largest share (98%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was -0.8 dB.
Overview
Bands
Last attributed message: 2026-11-03 21:36 UTC
Observed FT8 message patterns
- Attributed sample
- 348 messages
- Active dates
- 32 UTC dates
- Estimated median S/N
- -0.8 dB
- Estimated 10th-90th percentile
- -14 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 287.
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 IZ4FUA 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 IZ4FUA
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
- JN45 · 203 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,075 km (approx.)
- Last such locator decoded
- 2026-11-03 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 | IZ4FUA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-03 21:35 | 40m | -13 / - | W9MDM | - / -19 | 3 | Partial capture |
| 11-03 21:31 | 40m | -5 / - | VU2XZ | - / -19 | 6 | ✓ Closing fragment |
| 11-02 21:31 | 80m | +13 / - | 9A60CBM | - / +4 | 2 | Partial capture |
| 11-02 21:22 | 80m | +2 / - | EX7DY | - / -12 | 2 | ✓ Closing fragment |
| 11-02 21:01 | 80m | -6 / -11 | DB100FT | -20 / -5 | 3 | Partial capture |
| 11-02 20:07 | 80m | +10 / - | EY7BP | - / - | 4 | Partial capture |
| 11-02 19:58 | 40m | -10 / - | BG2GWN | - / - | 2 | Partial capture |
| 11-02 19:05 | 60m | -2 / - | LZ911TD | -14 / +1 | 3 | Partial capture |
| 11-02 19:01 | 60m | +2 / - | II4GCLB | - / -9 | 2 | Partial capture |
| 10-30 21:30 | 40m | - / - | F6KHS | -12 / - | 12 | Partial capture |
| 10-30 21:29 | 40m | +1 / - | K3ZR | - / - | 11 | Partial capture |
| 10-30 21:27 | 40m | -2 / - | AB3HP | - / - | 3 | Partial capture |
| 10-30 21:21 | 40m | -11 / - | BA7IWL | - / - | 3 | Partial capture |
| 10-30 05:46 | 40m | -2 / - | WA2HIP | - / - | 3 | Partial capture |
| 10-29 21:14 | 80m | +10 / - | DL40RIG | - / - | 2 | Partial capture |
| 10-28 21:15 | 80m | -6 / - | TK4TH | - / -4 | 4 | ✓ Closing fragment |
| 10-28 21:10 | 80m | +6 / - | 4Z5AV | - / -5 | 3 | ✓ Closing fragment |
| 10-28 20:27 | 40m | - / - | TA1MB | -8 / - | 2 | ✓ Closing fragment |
| 10-28 18:52 | 40m | -1 / - | JY4CH | - / -5 | 2 | Partial capture |
| 10-26 19:22 | 60m | +4 / - | DD0IPA | -4 / -3 | 5 | ✓ Full exchange observed |
| 10-26 19:19 | 60m | +4 / - | DD0IPA | - / - | 2 | Partial capture |
| 10-26 19:14 | 60m | +4 / +2 | LZ26IPA | -8 / -3 | 3 | Partial capture |
| 10-24 20:26 | 80m | +9 / - | JJ3JHP | - / -18 | 4 | ✓ Closing fragment |
| 10-21 20:17 | 40m | -3 / - | TF8KW | - / - | 3 | Partial capture |
| 10-19 20:26 | 60m | +6 / - | EG46PPA | - / -16 | 2 | Partial capture |
| 10-19 04:12 | 80m | - / - | YO3GNF | -4 / - | 3 | Partial capture |
| 10-19 04:10 | 80m | +6 / - | C5R | - / -16 | 3 | ✓ Closing fragment |
| 10-19 04:08 | 80m | +16 / - | OE/DL1MKW | - / -13 | 2 | Partial capture |
| 10-12 20:57 | 40m | -9 / - | C5R | - / - | 2 | Partial capture |
| 10-12 20:33 | 40m | +1 / - | TJ1GD | - / -7 | 5 | ✓ Closing fragment |
| 10-09 20:48 | 60m | 0 / - | 9T0MD | - / -20 | 10 | ✓ Closing fragment |
| 10-02 20:46 | 60m | +8 / - | TF8KW | - / -8 | 7 | ✓ Closing fragment |
| 10-02 20:38 | 80m | 0 / - | TF4M | -4 / - | 2 | ✓ Closing observed |
| 10-02 20:30 | 80m | +1 / -7 | TF4M | 0 / -4 | 9 | Partial capture |
| 09-28 20:41 | 40m | +7 / - | BD8FOD | - / - | 3 | Partial capture |
| 09-28 20:36 | 40m | +3 / - | TN8GD | - / -11 | 3 | ✓ Closing fragment |
| 09-28 20:35 | 40m | 0 / - | K1SM | - / - | 2 | ✓ Closing fragment |
| 09-28 20:18 | 80m | +9 / +2 | SQ100PKP | +3 / -5 | 2 | Partial capture |
| 09-28 20:15 | 80m | +8 / - | DB100FT | - / -4 | 2 | Partial capture |
| 09-17 20:44 | 80m | - / +8 | II9IAGM | -2 / - | 2 | Partial capture |
| 09-17 20:36 | 80m | -2 / -3 | 3Z100PKP | +14 / -11 | 4 | Partial capture |
| 09-17 20:27 | 60m | +6 / +10 | II8IHBC | -20 / +4 | 3 | Partial capture |
| 09-17 20:21 | 60m | +12 / - | II0IHMG | - / -5 | 2 | Partial capture |
| 09-14 18:45 | 40m | +6 / -13 | II4IANT | -10 / -4 | 2 | Partial capture |
| 09-11 19:53 | 40m | - / - | DK5EO | -12 / - | 2 | Partial capture |
| 09-11 19:53 | 40m | -2 / -14 | DK8HC | 0 / -9 | 9 | ✓ Full exchange observed |
| 09-11 19:51 | 40m | +1 / - | II7IAME | - / +4 | 3 | Partial capture |
| 09-04 20:29 | 40m | -2 / - | RI1FJL | - / -7 | 7 | Partial capture |
| 08-11 20:06 | 20m | +9 / - | EN35UKR | - / +4 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 213415 -12 1610 IZ4FUA F6KHS JN04 (x4) 195800 -11 818 BG2GWN IZ4FUA JN45 (x2) 213115 -19 1488 VU2XZ IZ4FUA JN45 (x6) 213515 -8 1488 W9MDM IZ4FUA -19 (x3)
UTC dB Audio Message 211400 +11 2741 DL40RIG IZ4FUA JN45 (x2) 200715 +8 787 EY7BP IZ4FUA JN45 (x4) 210130 -7 1645 DB100FT IZ4FUA JN45 210145 -20 1645 IZ4FUA DB100FT -11 210200 -6 1645 DB100FT IZ4FUA R-05 210830 -10 1913 LZ911TD IZ4FUA JN45 (x2) 212245 +3 1435 EX7DY IZ4FUA R-12 (x2) 213130 +15 545 9A60CBM IZ4FUA JN45 (x2)
UTC dB Audio Message 191415 +3 1486 <LZ26IPA> IZ4FUA JN45 191430 -8 1486 IZ4FUA LZ26IPA +02 191445 +5 1486 LZ26IPA IZ4FUA R-03 191930 +4 1984 DD0IPA IZ4FUA JN45 (x3) 192245 -2 1984 IZ4FUA DD0IPA +13 192300 +3 1984 DD0IPA IZ4FUA R-03 192315 -5 1984 IZ4FUA DD0IPA RR73 192330 +7 1984 DD0IPA IZ4FUA 73 190145 +1 1940 II4GCLB IZ4FUA JN45 (x2) 190515 -4 1582 LZ911TD IZ4FUA JN45 190530 -14 1583 IZ4FUA LZ911TD +27 190545 +1 1582 LZ911TD IZ4FUA R+01
UTC dB Audio Message 200645 +8 1060 <EN35UKR> IZ4FUA JN45 (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.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee