KI5ZYU — 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 KI5ZYU, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-27 and 2026-10-21.
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 20 FT8 messages attributed to KI5ZYU as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (65%), followed by 80 m (35%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (90%); the estimated median was -19 dB.
Overview
Bands
Last attributed message: 2026-10-21 05:07 UTC
Observed FT8 message patterns
- Attributed sample
- 20 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -19 dB
- Estimated 10th-90th percentile
- -23 to -17 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 0.
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 KI5ZYU in decoded directed-looking exchanges:
Most frequent locator attributed to KI5ZYU
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
- EM51 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,692 km (approx.)
- Last such locator decoded
- 2026-07-27 02:57 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 | KI5ZYU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 05:05 | 80m | -20 / - | F1NQP | -5 / - | 3 | ✓ Closing observed |
| 10-21 05:04 | 80m | -22 / -20 | DK7ZT | +9 / -16 | 6 | Partial capture |
| 10-21 05:04 | 80m | - / - | SP7ENW | +2 / - | 2 | Partial capture |
| 10-21 05:03 | 80m | - / -19 | SP9JBP | +16 / - | 2 | ✓ Closing fragment |
| 10-21 04:41 | 80m | - / - | IK2DZN | -15 / - | 2 | Partial capture |
| 10-21 04:39 | 80m | - / -15 | DL3OCF | +1 / - | 7 | ✓ Closing fragment |
| 10-21 04:39 | 80m | - / -22 | F4EGM | -7 / - | 5 | ✓ Closing fragment |
| 10-21 04:37 | 80m | - / -25 | LY7M | +11 / - | 3 | ✓ Closing fragment |
| 10-16 05:02 | 80m | - / -16 | DK7ZT | +3 / - | 5 | Partial capture |
| 10-16 05:02 | 80m | -23 / -13 | G0BLB | -5 / -11 | 4 | ✓ Full exchange observed |
| 10-16 05:02 | 80m | - / -11 | G4OWT | -12 / - | 2 | ✓ Closing fragment |
| 10-16 05:01 | 80m | - / - | HB9CEV | -18 / - | 3 | Partial capture |
| 10-16 05:01 | 80m | -21 / -13 | SQ7NSN | -4 / -11 | 4 | ✓ Full exchange observed |
| 10-16 04:40 | 80m | -24 / -15 | YU0U | +2 / -16 | 3 | ✓ Full exchange observed |
| 10-16 04:35 | 80m | - / -22 | IZ3ENH | +7 / - | 4 | ✓ Closing fragment |
| 10-16 04:29 | 80m | - / -7 | DL1RNW | +3 / - | 7 | Partial capture |
| 10-16 04:28 | 80m | - / -16 | DK7ZT | -2 / - | 2 | Partial capture |
| 10-16 04:27 | 80m | -20 / - | EU3AA | +2 / - | 2 | ✓ Closing observed |
| 10-11 03:38 | 80m | - / -17 | DL8TV | 0 / - | 5 | Partial capture |
| 10-11 03:38 | 80m | - / -25 | S55DX | +15 / - | 2 | ✓ Closing fragment |
| 09-30 05:04 | 80m | - / - | PE1NMM | -4 / - | 3 | Partial capture |
| 09-30 05:03 | 80m | - / - | F4BPO | +12 / - | 4 | Partial capture |
| 09-28 04:58 | 80m | - / - | F4FPR | -10 / - | 2 | Partial capture |
| 09-28 04:56 | 80m | - / - | PA3KUS | -1 / - | 3 | Partial capture |
| 09-28 03:46 | 40m | - / -7 | I1RJP | -3 / - | 6 | ✓ Closing fragment |
| 09-28 03:33 | 40m | - / - | I1RJP | -8 / - | 4 | Partial capture |
| 09-25 04:54 | 80m | - / - | SM3PZG | -12 / - | 2 | Partial capture |
| 09-25 04:54 | 80m | - / - | SP1TJ | -5 / - | 3 | Partial capture |
| 09-25 04:53 | 80m | - / -12 | S57TW | +4 / - | 4 | Partial capture |
| 09-25 04:53 | 80m | - / -14 | DL8TV | +2 / - | 5 | Partial capture |
| 09-25 04:46 | 80m | - / -16 | DG0OBU | +4 / - | 5 | Partial capture |
| 09-25 04:46 | 80m | - / -17 | ON7GB | +4 / - | 6 | ✓ Closing fragment |
| 09-25 04:45 | 80m | - / - | S57TW | 0 / - | 4 | Partial capture |
| 09-25 04:44 | 80m | - / -18 | HB9DBM | +4 / - | 3 | ✓ Closing fragment |
| 09-25 04:43 | 80m | - / - | OE6JVE | -4 / - | 2 | Partial capture |
| 09-25 04:42 | 80m | - / -16 | ON6AA | +9 / - | 3 | Partial capture |
| 09-19 04:55 | 80m | - / - | EA1B | -7 / - | 3 | Partial capture |
| 09-10 05:05 | 40m | - / - | IZ2QPP | -16 / - | 4 | Partial capture |
| 09-10 05:02 | 40m | - / -18 | YO6LM | -9 / - | 3 | ✓ Closing fragment |
| 09-10 05:01 | 40m | - / -13 | ON4AOI | +8 / - | 2 | ✓ Closing fragment |
| 09-10 04:20 | 80m | - / +2 | KE4EB | -20 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 044200 -2 399 KI5ZYU DL3OCF R-15 (x2) 050300 +16 1794 KI5ZYU SP9JBP -19 (x2) 050400 +4 2591 KI5ZYU SP7ENW JO91 (x2) 050430 +7 826 KI5ZYU DK7ZT -20 (x2) 050530 -6 1835 KI5ZYU F1NQP JN19 050530 +7 826 KI5ZYU DK7ZT -20 050600 -4 1835 KI5ZYU F1NQP JN19 050600 +8 826 KI5ZYU DK7ZT -20 (x2) 050645 -22 1417 DK7ZT KI5ZYU R-16 050745 -20 1417 F1NQP KI5ZYU RR73
UTC dB Audio Message 050545 -16 1477 KI5ZYU IZ2QPP JN46 (x4) 033315 -10 595 KI5ZYU I1RJP JN45 (x10) 031100 -9 2764 KI5ZYU PJ4/DH8BQA R+00
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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