R8LCA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R8LCA, decoded by SO8OO in southeastern Poland. 1,676 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 69 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-06.
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 1,676 FT8 messages attributed to R8LCA as the transmitting token by decoded message structure across 69 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (61%), followed by 160 m (22%) and 80 m (11%). The busiest six-hour window was 23:00-05:00 UTC, containing 46% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.
Overview
Bands
Last attributed message: 2026-10-06 18:30 UTC
Observed FT8 message patterns
- Attributed sample
- 1,676 messages
- Active dates
- 69 UTC dates
- Estimated median S/N
- -15 dB
- Estimated 10th-90th percentile
- -23 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 769, moderate (-15 to -9 dB) 567, strong (≥ -8 dB) 340.
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 R8LCA 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 R8LCA
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
- MO27 · 1,304 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,909 km (approx.)
- Last such locator decoded
- 2026-10-06 18:28 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 | R8LCA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-06 18:28 | 160m | -13 / - | UA9UDQ | - / -16 | 3 | ✓ Closing fragment |
| 10-06 18:26 | 160m | -14 / - | RU9F | - / - | 5 | Partial capture |
| 10-06 18:24 | 160m | -14 / - | OK4YL | - / - | 3 | Partial capture |
| 10-06 01:16 | 80m | -24 / - | F4JCU | -3 / -20 | 3 | ✓ Closing observed |
| 10-06 01:14 | 80m | -24 / -15 | F5RMK | +1 / -15 | 4 | ✓ Full exchange observed |
| 10-06 01:14 | 80m | - / - | RW9MZ | -16 / - | 2 | Partial capture |
| 10-06 01:12 | 80m | -16 / -14 | S55DX | +6 / -10 | 4 | ✓ Full exchange observed |
| 10-06 00:41 | 40m | - / -11 | EA2AR | -16 / - | 3 | Partial capture |
| 10-06 00:11 | 160m | - / -15 | RA9ACA | -19 / - | 2 | ✓ Closing fragment |
| 10-06 00:04 | 160m | - / -17 | RA7E | -7 / - | 3 | ✓ Closing fragment |
| 10-05 23:58 | 160m | -22 / - | LZ4TL | - / - | 3 | Partial capture |
| 10-05 22:33 | 160m | -24 / - | UA6MF | - / - | 2 | Partial capture |
| 10-05 22:31 | 160m | -22 / - | SN5V | +26 / - | 3 | ✓ Closing observed |
| 10-05 21:49 | 160m | - / -13 | RA1WU | +8 / - | 2 | ✓ Closing fragment |
| 10-05 21:13 | 160m | -24 / -20 | SP3PLD | +14 / - | 3 | ✓ Closing observed |
| 10-05 20:03 | 160m | - / -13 | RA5O | -6 / - | 2 | Partial capture |
| 10-05 19:31 | 160m | -24 / -1 | UA3GX | +5 / - | 3 | ✓ Closing observed |
| 10-05 19:26 | 160m | - / - | G0OIL | -20 / - | 2 | Partial capture |
| 10-05 19:24 | 160m | -22 / -19 | IW4AOT | +7 / -24 | 6 | ✓ Full exchange observed |
| 10-05 18:51 | 160m | - / -12 | RV3V | +2 / - | 2 | ✓ Closing fragment |
| 10-05 18:48 | 160m | - / -11 | RN1CW | -4 / - | 11 | Partial capture |
| 10-05 18:06 | 160m | - / -16 | OM3SX | +8 / - | 2 | Partial capture |
| 10-05 15:13 | 40m | - / -2 | R4RJ | -18 / - | 2 | ✓ Closing fragment |
| 10-05 00:04 | 160m | -24 / +1 | RG8U | -14 / -11 | 5 | ✓ Full exchange observed |
| 10-04 21:36 | 160m | -24 / -15 | SV2JU | -2 / -17 | 4 | ✓ Full exchange observed |
| 10-04 21:29 | 160m | -24 / - | 4L7T | - / -18 | 2 | Partial capture |
| 10-04 21:26 | 160m | -24 / -15 | OM3TWM | +10 / -15 | 4 | ✓ Full exchange observed |
| 10-04 21:23 | 160m | -23 / -17 | SP9MRO | +4 / -13 | 5 | ✓ Full exchange observed |
| 10-04 21:15 | 160m | - / - | DL8UNO | 0 / - | 2 | Partial capture |
| 10-04 21:13 | 160m | -17 / - | SV1EKI | -5 / -18 | 4 | ✓ Closing observed |
| 10-04 21:11 | 160m | -20 / -9 | UA6XT | -16 / -16 | 6 | ✓ Full exchange observed |
| 10-04 21:04 | 160m | -24 / - | OH2FNR | - / - | 4 | Partial capture |
| 10-04 20:52 | 160m | -13 / - | SV3DVW | - / - | 5 | Partial capture |
| 10-04 20:50 | 160m | - / -15 | YO2NAA | -7 / - | 2 | ✓ Closing fragment |
| 10-04 20:43 | 160m | - / - | YO2NAA | -11 / - | 3 | Partial capture |
| 10-04 20:41 | 160m | -15 / - | JA5XAE | - / - | 5 | Partial capture |
| 10-04 20:38 | 160m | -15 / -12 | SM1NJC | 0 / -4 | 7 | ✓ Full exchange observed |
| 10-04 20:36 | 160m | - / - | YO2NAA | -10 / - | 2 | Partial capture |
| 10-04 20:34 | 160m | -22 / -8 | 9A4ZM | -10 / -24 | 4 | ✓ Full exchange observed |
| 10-04 20:28 | 160m | -16 / -21 | E73S | +10 / -14 | 5 | ✓ Full exchange observed |
| 10-04 20:27 | 160m | - / - | YO2NAA | -2 / - | 4 | Partial capture |
| 10-04 20:26 | 160m | -21 / - | R3YCJ | - / - | 3 | Partial capture |
| 10-04 20:23 | 160m | -20 / - | RA6FYL | - / - | 3 | Partial capture |
| 10-04 20:19 | 160m | -21 / -7 | RX3PX | -2 / -10 | 5 | ✓ Full exchange observed |
| 10-04 20:11 | 160m | - / -19 | SP4LIN | +10 / - | 2 | ✓ Closing fragment |
| 10-04 20:00 | 160m | - / - | SQ3RX | -11 / - | 2 | Partial capture |
| 10-04 19:59 | 160m | -14 / - | R5ZQ | -4 / -8 | 3 | ✓ Closing observed |
| 10-04 19:57 | 160m | -13 / +3 | SP5GW | +4 / -14 | 6 | ✓ Full exchange observed |
| 10-04 19:55 | 160m | -9 / -19 | HA5AO | 0 / -19 | 6 | ✓ Full exchange observed |
| 10-04 19:51 | 160m | -15 / - | OK2BPU | - / - | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 181500 -12 1802 CQ R8LCA MO27 (x3) 182400 -12 1802 OK4YL R8LCA MO27 (x3) 182600 -14 1802 RU9F R8LCA MO27 (x5) 182830 -13 1803 UA9UDQ R8LCA MO27 (x2) 182945 -10 2342 R8LCA LY2BNL KO24 183000 -13 1802 UA9UDQ R8LCA 73
UTC dB Audio Message 011300 -16 1503 S55DX R8LCA R-10 011315 +5 1356 R8LCA S55DX RR73 011330 -17 1503 S55DX R8LCA 73 011415 -16 1765 R8LCA RW9MZ MO74 011415 +0 1209 R8LCA F5RMK -15 011430 -24 1503 F5RMK R8LCA R-15 011445 -16 1765 R8LCA RW9MZ MO74 011445 +2 1209 R8LCA F5RMK RR73 011500 -24 1503 F5RMK R8LCA 73 011615 -3 1497 R8LCA F4JCU JN16 011630 -24 1503 F4JCU R8LCA -20 (x2) 011730 -15 1503 IK5CHL R8LCA MO27 012000 -19 1503 Z61DX R8LCA MO27 012230 -17 1503 ON3ANY R8LCA MO27
UTC dB Audio Message 152015 +3 538 R8LCA DL6UM -13 154215 -1 2746 R8LCA R3DPZ -15 (x2) 154745 -3 2036 R8LCA SV2BWY -11 (x4) 141015 -3 2230 R8LCA R5ZQ RR73 150600 -7 2730 R8LCA RX6LG RR73 151115 +1 1897 R8LCA OE1TKS RR73 151300 -18 1792 R8LCA R4RJ -02 (x2) 004145 -14 1052 R8LCA EA2AR -11 (x3)
UTC dB Audio Message 163730 -7 2034 R8LCA G3ZSU -04 (x2) 171315 -12 2124 R8LCA IK2LRF -22 171500 -17 2074 F4NBB R8LCA MO27 171545 +4 897 R8LCA F4NBB -15 (x2) 171715 -4 1309 R8LCA I5PXF -10 171730 -23 2073 I5PXF R8LCA R-13 171745 -1 1309 R8LCA I5PXF RR73 171800 -19 2073 I5PXF R8LCA 73 172230 -23 2074 OE3BHM R8LCA MO27 172415 +15 1036 R8LCA OE3BHM -18 172430 -18 2074 SP4FCA R8LCA MO27 172445 +14 1036 R8LCA OE3BHM -18 (x2)
UTC dB Audio Message 091800 -16 1783 R8LCA HB9ACA RR73 072200 -10 1448 R8LCA M0MDS -13 (x2) 074115 -16 2166 R8LCA IZ4TSV -09 074115 +5 675 R8LCA DH8BAC -11 074145 -10 2166 R8LCA IZ4TSV -09 (x4) 074315 -14 675 R8LCA DH8BAC RR73 074345 -14 2166 R8LCA IZ4TSV -09 074345 -10 675 R8LCA DH8BAC RR73 074415 -8 2166 R8LCA IZ4TSV -09 074415 +1 675 R8LCA DH8BAC RR73 074445 -14 2166 R8LCA IZ4TSV RR73
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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