IU3ISK — 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 IU3ISK, decoded by SO8OO in southeastern Poland. 224 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-31 and 2026-11-04.
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 224 FT8 messages attributed to IU3ISK as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (97%), followed by 40 m (3%). Most decodes (100%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (96%); the estimated median was +2 dB.
Overview
Bands
Last attributed message: 2026-11-04 19:50 UTC
Observed FT8 message patterns
- Attributed sample
- 224 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- +2 dB
- Estimated 10th-90th percentile
- -6 to +10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 214.
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 IU3ISK 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 IU3ISK
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
- JN66 · 94 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 755 km (approx.)
- Last such locator decoded
- 2026-11-04 19:50 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 | IU3ISK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-04 19:47 | 80m | +4 / - | D2UY | - / - | 6 | Partial capture |
| 11-04 19:36 | 80m | +4 / - | VK6EI | - / - | 20 | Partial capture |
| 11-04 19:32 | 80m | +7 / - | G0AZH | - / -14 | 5 | ✓ Closing fragment |
| 11-04 19:23 | 80m | -1 / - | VK3BDL | - / -17 | 6 | ✓ Closing fragment |
| 11-04 19:22 | 80m | - / - | DO2XB | +12 / - | 3 | Partial capture |
| 11-04 19:21 | 80m | -2 / -4 | RJ3DC | -8 / - | 4 | ✓ Closing observed |
| 11-04 19:16 | 80m | +2 / - | SV5BYP | -16 / -3 | 6 | ✓ Closing observed |
| 11-04 19:13 | 80m | - / -3 | SV5BYP | -16 / - | 2 | Partial capture |
| 11-04 19:13 | 80m | +4 / +3 | DO9SAM | +4 / +1 | 7 | ✓ Full exchange observed |
| 11-04 19:13 | 80m | +4 / - | LA2GCA | -17 / -13 | 5 | ✓ Closing observed |
| 11-04 18:28 | 80m | +4 / -9 | RT2F | 0 / -1 | 4 | ✓ Full exchange observed |
| 11-04 18:21 | 80m | 0 / - | JA9BFN | - / -16 | 5 | Partial capture |
| 11-04 18:08 | 80m | -4 / - | IZ4EFV | - / -1 | 2 | ✓ Closing fragment |
| 11-04 18:04 | 80m | +4 / - | OD5ZZ | - / -19 | 5 | Partial capture |
| 11-04 17:55 | 80m | +8 / - | IZ4EFV | -14 / -1 | 3 | Partial capture |
| 11-04 17:55 | 80m | +2 / -18 | UX7QV | -3 / -15 | 7 | ✓ Full exchange observed |
| 11-04 17:48 | 80m | +5 / - | RW9MZ | - / -19 | 3 | Partial capture |
| 11-02 21:14 | 80m | -6 / - | LR5PMA | - / - | 7 | Partial capture |
| 11-02 21:13 | 80m | -4 / - | LZ2VQ | - / -11 | 3 | ✓ Closing fragment |
| 11-02 21:11 | 80m | -11 / - | F5PBG | - / -8 | 3 | ✓ Closing fragment |
| 11-02 21:10 | 80m | -9 / 0 | DL3MIB | +19 / -12 | 6 | ✓ Full exchange observed |
| 11-02 21:08 | 80m | -6 / -9 | RX3DQL | +4 / -7 | 5 | ✓ Full exchange observed |
| 11-02 21:07 | 80m | -7 / - | AP5ARS | - / - | 2 | Partial capture |
| 11-02 21:02 | 80m | -7 / - | CT3HQ | - / - | 3 | Partial capture |
| 11-02 20:55 | 80m | -2 / - | AP5ARS | - / - | 9 | Partial capture |
| 11-02 20:24 | 80m | +3 / - | D2UY | - / - | 3 | Partial capture |
| 11-02 20:21 | 80m | +14 / -11 | 9A4ZM | +10 / -4 | 6 | ✓ Full exchange observed |
| 11-02 20:20 | 80m | +12 / - | YO9HP | +1 / -5 | 4 | ✓ Closing observed |
| 11-02 20:14 | 80m | -2 / - | JH4IFF | - / -11 | 3 | Partial capture |
| 11-02 20:10 | 80m | +6 / - | JH4IFF | - / - | 3 | Partial capture |
| 11-02 20:08 | 80m | +9 / - | D2UY | - / - | 2 | Partial capture |
| 11-02 20:03 | 80m | 0 / -11 | IW9FRA | -12 / -8 | 6 | ✓ Full exchange observed |
| 11-02 19:56 | 80m | -6 / - | UA4FKT | - / -16 | 2 | Partial capture |
| 11-02 19:54 | 80m | 0 / -7 | RV6HE | -19 / -5 | 3 | ✓ Full exchange observed |
| 11-02 19:52 | 80m | +2 / - | DO1HWM | - / -10 | 3 | ✓ Closing fragment |
| 11-02 19:48 | 80m | +6 / - | JA4FKX | -6 / -10 | 5 | ✓ Closing observed |
| 11-02 19:46 | 80m | +6 / - | UA4FKT | - / -6 | 3 | Partial capture |
| 11-02 19:44 | 80m | +7 / -14 | PE1NPS | -4 / -8 | 4 | ✓ Full exchange observed |
| 11-02 19:43 | 80m | -1 / - | IU2THY | - / -3 | 2 | Partial capture |
| 11-02 19:41 | 80m | +3 / - | TA1MB | - / -11 | 3 | ✓ Closing fragment |
| 11-02 19:40 | 80m | -2 / - | DJ7XY | - / -11 | 2 | ✓ Closing fragment |
| 11-02 19:39 | 80m | - / - | IU2THY | +6 / - | 3 | Partial capture |
| 11-02 19:24 | 80m | +4 / - | TA1MB | - / -14 | 4 | Partial capture |
| 11-02 19:23 | 80m | - / -3 | DL8TV | +8 / - | 3 | Partial capture |
| 11-02 19:22 | 80m | 0 / - | SP3JHZ | +13 / -23 | 3 | ✓ Closing observed |
| 11-02 19:21 | 80m | +10 / +3 | DO5PY | -2 / 0 | 4 | Partial capture |
| 11-02 19:14 | 80m | +3 / - | YO4LUP | -13 / -5 | 2 | ✓ Closing observed |
| 11-02 19:11 | 80m | 0 / - | UN0GY | - / -25 | 3 | ✓ Closing fragment |
| 11-02 19:05 | 80m | -3 / - | EX7DY | - / -18 | 6 | ✓ Closing fragment |
| 11-02 19:00 | 80m | +2 / - | UA4FKT | - / -15 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194130 +2 1465 VK6EI IU3ISK JN66 (x9) 194730 +4 1465 D2UY IU3ISK JN66 (x6)
UTC dB Audio Message 205745 +10 2408 RI1FJL IU3ISK JN66 (x6)
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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