KO3F — 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 KO3F, decoded by SO8OO in southeastern Poland. 92 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-05.
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 92 FT8 messages attributed to KO3F as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (97%), followed by 80 m (2%) and 40 m (1%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-10-05 00:45 UTC
Observed FT8 message patterns
- Attributed sample
- 92 messages
- Active dates
- 11 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -23 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 12.
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 KO3F in decoded directed-looking exchanges:
Most frequent locator attributed to KO3F
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
- FM19 · 56 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,310 km (approx.)
- Last such locator decoded
- 2026-08-25 21:10 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 | KO3F S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 00:58 | 80m | - / -15 | F4EGM | +11 / - | 3 | ✓ Closing fragment |
| 10-22 00:57 | 80m | - / -16 | CT2HEX | -6 / - | 6 | Partial capture |
| 10-22 00:29 | 40m | - / -18 | 9A5CW | +3 / - | 2 | ✓ Closing fragment |
| 10-21 00:32 | 40m | - / -20 | G7KNF | +3 / - | 10 | Partial capture |
| 10-21 00:29 | 40m | - / -5 | CT7BRV | -3 / - | 2 | ✓ Closing fragment |
| 10-15 00:29 | 40m | - / -16 | ON1JP | -18 / - | 3 | ✓ Closing fragment |
| 10-06 00:57 | 80m | - / -14 | UX5UO | +12 / - | 4 | ✓ Closing fragment |
| 10-05 00:22 | 40m | - / -15 | EI2KM | +2 / - | 2 | Partial capture |
| 10-04 00:39 | 40m | - / -14 | K4GRI | -9 / - | 3 | ✓ Closing fragment |
| 10-03 00:58 | 80m | - / -17 | EC3A | -13 / - | 2 | Partial capture |
| 10-02 00:42 | 40m | - / -11 | HJ6UMR | -8 / - | 2 | Partial capture |
| 10-02 00:26 | 40m | - / -16 | IT9ELM | -20 / - | 2 | ✓ Closing fragment |
| 10-01 00:57 | 80m | - / - | UX5UO | +16 / - | 4 | Partial capture |
| 10-01 00:53 | 80m | - / -2 | KP4AA | -14 / - | 2 | ✓ Closing fragment |
| 09-28 00:39 | 40m | - / -12 | F1PBZ | 0 / - | 4 | Partial capture |
| 09-24 00:52 | 80m | - / -16 | 9Y4D | -14 / - | 2 | ✓ Closing fragment |
| 09-23 01:00 | 40m | - / -13 | CT2HEX | -17 / - | 5 | Partial capture |
| 09-21 00:52 | 40m | - / +2 | KC1OXG | -8 / - | 2 | ✓ Closing fragment |
| 09-19 00:44 | 40m | - / - | F4HXJ | +1 / - | 3 | Partial capture |
| 09-13 00:31 | 40m | - / -1 | EA7R | +1 / - | 2 | ✓ Closing fragment |
| 09-12 00:59 | 40m | - / -18 | GM6URC | -15 / - | 2 | Partial capture |
| 09-12 00:32 | 40m | - / - | EB2FBI | -14 / - | 4 | Partial capture |
| 09-12 00:25 | 40m | - / -11 | F4ACR | -2 / - | 2 | Partial capture |
| 09-09 00:29 | 40m | - / - | 5Z4VJ | -3 / - | 2 | Partial capture |
| 09-08 00:56 | 40m | - / -8 | YU65AEC | -9 / - | 2 | Partial capture |
| 09-07 00:58 | 40m | - / -15 | G3VCQ | -2 / - | 2 | ✓ Closing fragment |
| 09-07 00:46 | 40m | - / -12 | CR7BRV | -5 / - | 2 | ✓ Closing fragment |
| 09-06 00:25 | 40m | - / -15 | OZ7KJ/P | +6 / - | 2 | ✓ Closing fragment |
| 09-06 00:21 | 40m | - / - | OZ7SKB/P | -8 / - | 4 | ✓ Closing fragment |
| 09-06 00:09 | 40m | - / -12 | OU7K/P | -14 / - | 2 | ✓ Closing fragment |
| 08-30 22:26 | 20m | - / -5 | F1PBZ | -6 / - | 2 | ✓ Closing fragment |
| 08-29 01:07 | 40m | - / - | US7KC | -18 / - | 2 | Partial capture |
| 08-25 21:19 | 20m | - / -20 | 9A6NTK | -10 / - | 2 | ✓ Closing fragment |
| 08-25 21:10 | 20m | -14 / -13 | EA5JLN | -2 / - | 6 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 005145 -24 1646 KO3F K8DV +07 005715 +11 1132 KO3F UX5UO KO50 (x4) 005230 +15 1828 KO3F F4EGM JN29 005700 -7 1493 KO3F CT2HEX IM58 (x3) 005830 +10 1978 KO3F F4EGM JN29 005830 -7 1493 KO3F CT2HEX R-16 005900 +14 1978 KO3F F4EGM R-15 005900 -8 1493 KO3F CT2HEX R-16 005930 +10 1978 KO3F F4EGM 73 005930 -3 1493 KO3F CT2HEX R-16
UTC dB Audio Message 003015 -19 1978 KO3F ON1JP RR73 002945 -3 755 KO3F CT7BRV -05 (x2) 003215 -3 312 KO3F G7KNF -20 (x10) 002900 +0 586 KO3F 9A5CW -18 (x2)
UTC dB Audio Message 165000 -19 2236 KO3F IK5RLP RR73
UTC dB Audio Message 210600 -8 1733 IK3FHW/IT9 KO3F FM19 211000 -14 1906 EA5JLN KO3F FM19 211045 +0 1462 KO3F EA5JLN -13 (x5) 211900 -11 2551 KO3F 9A6NTK -20 (x2) 222515 -9 1697 KO3F IU0MBJ RR73 222615 -9 2577 KO3F F1PBZ -05 (x2)
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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