KM4KDF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving KM4KDF, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-08-28.
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 9 FT8 messages attributed to KM4KDF 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 (100%). In this small sample, the estimated median decoder S/N was -7 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 9 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -7 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 6.
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 KM4KDF in decoded directed-looking exchanges:
Most frequent locator attributed to KM4KDF
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
- FM07 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,591 km (approx.)
- Last such locator decoded
- 2026-08-28 22:01 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 | KM4KDF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 05:17 | 40m | - / -5 | F5LOW | -16 / - | 2 | Partial capture |
| 09-14 05:54 | 40m | - / - | M0CKX | -16 / - | 5 | Partial capture |
| 09-14 05:31 | 40m | - / -15 | GJ0KYZ | -6 / - | 3 | Partial capture |
| 09-14 05:31 | 40m | - / - | OE9DAI | +4 / - | 5 | Partial capture |
| 09-14 05:27 | 40m | - / -3 | DL5KR | -8 / - | 7 | ✓ Closing fragment |
| 09-14 05:27 | 40m | - / -15 | IT9DVZ | -4 / - | 5 | ✓ Closing fragment |
| 09-14 05:17 | 40m | - / - | IN3WZS | -4 / - | 12 | Partial capture |
| 09-13 06:06 | 40m | - / - | PD0WL | -11 / - | 4 | Partial capture |
| 08-28 22:00 | 20m | -6 / - | VA7GEM | - / - | 2 | Partial capture |
| 08-28 03:27 | 20m | -19 / -7 | RK4FF | -10 / 0 | 3 | ✓ Closing observed |
| 08-28 03:24 | 20m | - / -20 | A99AA | 0 / - | 5 | ✓ Closing fragment |
| 08-20 04:59 | 20m | - / -14 | LZ3BS | -6 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 053200 -6 2262 KM4KDF GJ0KYZ -15 053230 +0 2201 KM4KDF OE9DAI JN47 (x2) 053630 -19 1117 KM4KDF EA5PS IM99 055430 -21 1882 KM4KDF M0CKX IO93 (x5) 045430 -11 2334 KM4KDF HB9IRO JN46 050030 -7 2434 KM4KDF PD0NYL JO21 050100 -14 1630 KM4KDF IZ8XJJ JN70 051730 -18 1155 KM4KDF F5LOW -05 (x2) 051830 -21 1668 KM4KDF EA5GQB IM97
UTC dB Audio Message 050000 -4 2130 KM4KDF LZ3BS -19 050130 -24 2084 KM4KDF HB9TIH 73 042945 -13 907 KM4KDF TI5RR 73 032430 -3 2570 KM4KDF A99AA R-20 (x5) 032730 -11 2293 KM4KDF RK4FF -07 (x2) 032845 -19 2294 RK4FF KM4KDF +00 033400 -2 952 KM4KDF UB3GER R-12 034200 -21 1627 KM4KDF RX9ABI MO05 220045 -7 2559 VA7GEM KM4KDF FM07 (x2)
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