K4NH — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving K4NH, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-24.
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 8 FT8 messages attributed to K4NH as the transmitting token by decoded message structure across 1 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 -9 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 8 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -9 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 4.
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 K4NH in decoded directed-looking exchanges:
Most frequent locator attributed to K4NH
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
- EM64
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,314 km (approx.)
- Last such locator decoded
- 2026-08-24 21:39 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 | K4NH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-24 21:42 | 20m | -8 / - | MW7PPO | - / -17 | 2 | ✓ Closing fragment |
| 08-24 21:41 | 20m | -7 / - | W0OVX | - / -14 | 3 | ✓ Closing fragment |
| 08-24 21:39 | 20m | -9 / -4 | ON5UE | -14 / - | 4 | ✓ Closing observed |
| 08-24 21:39 | 20m | -9 / +3 | 5Z4VJ | -10 / - | 3 | ✓ Closing observed |
| 07-07 17:57 | 20m | - / - | DA1VID | -10 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180800 -16 1001 K4NH <...> -22 213900 -9 2211 5Z4VJ K4NH EM64 213915 -8 2123 K4NH 5Z4VJ +03 213945 -12 1899 K4NH ON5UE JO11 213945 -11 2124 K4NH 5Z4VJ RR73 214045 -14 1898 K4NH ON5UE R-04 214100 -9 2210 ON5UE K4NH RR73 214115 -15 1899 K4NH ON5UE 73 214130 -7 2210 W0OVX K4NH -14 (x2) 214230 -6 2210 MW7PPO K4NH -17 214300 -9 2210 W0OVX K4NH RR73 214330 -9 2210 MW7PPO K4NH RR73 214415 -21 1357 K4NH PA1AA R-07 215200 -8 2210 MD0RTZ K4NH 73
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