K4AV — 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 K4AV, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-25 and 2026-11-05.
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 11 FT8 messages attributed to K4AV as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (55%), followed by 80 m (45%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-11-05 23:43 UTC
Observed FT8 message patterns
- Attributed sample
- 11 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -13 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 7, 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. 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 K4AV in decoded directed-looking exchanges:
Most frequent locator attributed to K4AV
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
- FM16 · 5 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,551 km (approx.)
- Last such locator decoded
- 2026-11-05 23:38 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 | K4AV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 23:41 | 40m | -12 / - | 4L1FL | - / -13 | 4 | ✓ Closing fragment |
| 11-05 23:40 | 40m | - / - | LY1DX | -4 / - | 9 | Partial capture |
| 10-06 23:32 | 80m | - / - | F5RAV | -2 / - | 3 | Partial capture |
| 10-06 23:32 | 80m | - / - | HF1Z | +2 / - | 3 | Partial capture |
| 10-06 23:32 | 80m | - / - | PA3FPQ | +5 / - | 3 | Partial capture |
| 10-06 23:31 | 80m | -21 / - | LU2BA | - / +1 | 2 | ✓ Closing fragment |
| 09-27 22:20 | 40m | - / - | G0BIX | -11 / - | 3 | Partial capture |
| 09-27 22:16 | 40m | - / -9 | ZC4OL | -3 / - | 3 | ✓ Closing fragment |
| 09-25 22:48 | 80m | - / - | PE0JBE | -4 / - | 2 | Partial capture |
| 09-25 22:42 | 80m | -23 / - | Z62NS | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 233430 -13 1951 SV9QWC K4AV FM16 233830 -13 1951 4L1FL K4AV FM16 234045 +1 781 K4AV LY1DX KO24 234100 -13 1951 4L1FL K4AV R-13 234115 -2 1460 K4AV LY1DX KO24 (x2) 234200 -10 1951 4L1FL K4AV R-13 234215 -6 1460 K4AV LY1DX KO24 234230 -13 1951 4L1FL K4AV R-13 234245 -6 1460 K4AV LY1DX KO24 234300 -12 1951 4L1FL K4AV 73 234315 -2 1460 K4AV LY1DX KO24 (x4)
UTC dB Audio Message 224730 -13 1880 K4AV DO1YSF JO61 224830 -3 2854 K4AV PE0JBE JO32 (x2) 233130 -22 1834 LU2BA K4AV R+01 (x2) 233215 +4 317 K4AV PA3FPQ JO32 233215 +3 1702 K4AV HF1Z JO73 233245 +6 317 K4AV PA3FPQ JO32 233245 +2 1702 K4AV HF1Z JO73 233245 -1 1182 K4AV F5RAV JN09 233315 +6 317 K4AV PA3FPQ JO32 233315 +2 1702 K4AV HF1Z JO73 233315 -2 1182 K4AV F5RAV JN09 (x2) 221645 -2 2233 K4AV SP4LO KO13
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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