R3LCU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R3LCU, decoded by SO8OO in southeastern Poland. 55 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-30 and 2026-09-15.
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 55 FT8 messages attributed to R3LCU as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (78%), followed by 80 m (22%). Several six-hour UTC windows tied for the largest share (75%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (98%); the estimated median was 0 dB.
Overview
Bands
Last attributed message: 2026-09-15 16:20 UTC
Observed FT8 message patterns
- Attributed sample
- 55 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- 0 dB
- Estimated 10th-90th percentile
- -4 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 54.
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 R3LCU 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 R3LCU
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
- KO64 · 20 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 915 km (approx.)
- Last such locator decoded
- 2026-09-15 16:20 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 | R3LCU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 16:16 | 40m | +4 / - | A41MO | - / - | 2 | Partial capture |
| 09-15 16:15 | 40m | +2 / - | UD1I | - / -7 | 2 | ✓ Closing fragment |
| 09-10 18:12 | 80m | +7 / +3 | RA2FU | 0 / -16 | 7 | ✓ Full exchange observed |
| 09-10 18:09 | 80m | +2 / - | RM5F | +11 / +2 | 3 | Partial capture |
| 09-06 17:02 | 40m | +4 / - | BI3AMG | - / - | 2 | Partial capture |
| 09-06 17:01 | 40m | 0 / -14 | 4X1UF | -13 / -9 | 4 | ✓ Full exchange observed |
| 09-06 16:57 | 40m | +2 / -5 | RC9WC | +6 / -1 | 5 | ✓ Full exchange observed |
| 09-06 16:57 | 40m | 0 / 0 | UA3GDJ | +11 / +4 | 7 | ✓ Full exchange observed |
| 09-06 16:56 | 40m | +1 / - | R2BGZ | - / -19 | 3 | ✓ Closing fragment |
| 09-06 16:55 | 40m | 0 / - | UB3BDB | - / -15 | 2 | ✓ Closing fragment |
| 09-06 16:53 | 40m | +6 / -11 | RM5F | 0 / -5 | 5 | ✓ Full exchange observed |
| 09-06 16:51 | 40m | +2 / - | RA4Y | -11 / - | 2 | ✓ Closing observed |
| 09-06 16:51 | 40m | -2 / - | RU6CH | +4 / -7 | 3 | ✓ Closing observed |
| 09-06 16:50 | 40m | 0 / -9 | UB4HVA | -10 / - | 3 | ✓ Closing observed |
| 09-03 04:39 | 40m | 0 / +1 | UB3DQR | -12 / +2 | 4 | ✓ Full exchange observed |
| 09-03 04:34 | 40m | -2 / - | OK2JKO | - / -16 | 4 | ✓ Closing fragment |
| 09-03 04:33 | 40m | -2 / - | SP7TF | - / 0 | 2 | ✓ Closing fragment |
| 08-30 18:31 | 80m | -8 / -9 | EU1KI | +7 / -3 | 5 | ✓ Full exchange observed |
| 08-30 18:31 | 80m | -6 / -14 | R7OF | +2 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 170100 -14 228 R3LCU 4X1UF -14 170115 -1 2453 4X1UF R3LCU R-09 170130 -12 228 R3LCU 4X1UF RR73 170145 +2 2453 4X1UF R3LCU 73 170245 +5 2452 BI3AMG R3LCU KO64 (x2) 161415 -2 2466 CQ R3LCU KO64 161545 +5 2465 UD1I R3LCU -07 (x2) 161645 +1 2464 A41MO R3LCU KO64 (x2) 161745 +1 2463 CQ R3LCU KO64 a1 161800 -7 2238 R3LCU IQ4JO JN63 161900 -1 2462 RA9CUU R3LCU KO64 162000 +0 2461 CQ R3LCU KO64
UTC dB Audio Message 183415 +12 2947 R3LCU RA4FHO RR73 180900 +11 953 R3LCU RM5F KO85 180945 +3 2426 OH3GBW R3LCU RR73 181015 +4 2426 RM5F R3LCU +02 (x2) 181115 +1 2426 CQ R3LCU KO64 181215 +10 2426 RA2FU R3LCU KO64 181230 +5 1800 R3LCU RA2FU +03 181245 +5 2425 RA2FU R3LCU R-16 181300 +0 1800 R3LCU RA2FU RRR 181315 +5 2425 RA2FU R3LCU 73 181330 +3 1800 R3LCU RA2FU 73 181345 -2 2425 CQ R3LCU KO64 a1 181400 -6 1800 R3LCU RA2FU 73 181445 +5 2424 CQ R3LCU KO64
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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