KM4RL — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving KM4RL, decoded by SO8OO in southeastern Poland. 35 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-09.
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 35 FT8 messages attributed to KM4RL as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 40 m (20%). Most decodes (100%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-09-09 00:44 UTC
Observed FT8 message patterns
- Attributed sample
- 35 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -19 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 20, 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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with KM4RL in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to KM4RL
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
- EL88 · 19 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,589 km (approx.)
- Last such locator decoded
- 2026-09-08 23:49 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 | KM4RL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 00:48 | 80m | - / -24 | SP6JIU | +24 / - | 2 | ✓ Closing fragment |
| 09-09 00:47 | 40m | - / -24 | 5Z4VJ | -5 / - | 4 | ✓ Closing fragment |
| 09-09 00:40 | 40m | - / -15 | EC5M | -9 / - | 2 | ✓ Closing fragment |
| 09-08 23:49 | 40m | - / -22 | A99AA | -4 / - | 2 | Partial capture |
| 09-08 23:45 | 40m | -12 / - | KM4S | - / - | 3 | Partial capture |
| 08-28 20:16 | 20m | -20 / - | ER3CT | - / -8 | 2 | Partial capture |
| 08-28 19:59 | 20m | -10 / - | W5ELD | - / - | 3 | Partial capture |
| 08-28 19:55 | 20m | -10 / - | AA4AZ | - / - | 2 | Partial capture |
| 08-11 12:29 | 20m | - / -18 | DH9DR | -20 / - | 2 | Partial capture |
| 07-21 19:29 | 20m | - / -16 | F1TXI | -5 / - | 5 | ✓ Closing fragment |
| 07-14 23:01 | 20m | - / -15 | EA1AUO | -8 / - | 2 | ✓ Closing fragment |
| 07-14 22:36 | 20m | - / - | 9A2AA | -4 / - | 2 | ✓ Closing fragment |
| 06-23 20:21 | 20m | - / - | RU3SD | +11 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 234600 -10 2589 KM4S KM4RL EL88 234730 -9 2589 A99AA KM4RL EL88 234930 -13 2589 KC1EDK KM4RL EL88 234945 -3 2990 KM4RL A99AA -22 (x2) 004045 -10 1984 KM4RL EC5M -15 (x2) 004345 -12 1142 KM4RL IT9CMZ -13 004415 -8 2809 N4RDX KM4RL R-06 004715 -5 2537 KM4RL 5Z4VJ KI88 (x4) 005300 -21 2037 KM4RL CO8TW RR73 004145 -6 2833 KM4RL W1FAM 73
UTC dB Audio Message 013245 -11 1019 KM4RL F5BRF -17 004800 +25 2849 KM4RL SP6JIU -24 (x2)
UTC dB Audio Message 013245 -21 1554 KM4RL F5BRF -17
UTC dB Audio Message 113745 -13 2516 KM4RL OZ5NJ RR73 122900 -20 1692 KM4RL DH9DR -18 (x2) 204330 -10 2614 KM4RL OK2CNI -12 195030 -3 1920 KM4RL F4HSB -08 224700 -15 2472 KJ3LLY KM4RL 73 195515 -8 2683 AA4AZ KM4RL EL88 (x2) 195930 -9 2684 W5ELD KM4RL EL88 (x3) 200100 -3 2684 KC9JJS KM4RL EL88 201515 -23 1190 SP3TOT KM4RL 73 201645 -20 1180 ER3CT KM4RL -08 (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.
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