IU8LMC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU8LMC, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-01.
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 64 FT8 messages attributed to IU8LMC as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (70%), followed by 40 m (30%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-09-01 02:25 UTC
Observed FT8 message patterns
- Attributed sample
- 64 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -20 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 35, strong (≥ -8 dB) 19.
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 IU8LMC 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 IU8LMC
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
- JN71 · 36 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,075 km (approx.)
- Last such locator decoded
- 2026-08-20 13:15 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 | IU8LMC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-21 01:20 | 40m | - / - | R4HHN | -5 / - | 2 | Partial capture |
| 09-21 01:19 | 40m | - / - | UA9SAV | -4 / - | 3 | Partial capture |
| 09-21 01:06 | 40m | - / -11 | UK8FCM | -12 / - | 2 | ✓ Closing fragment |
| 09-21 00:40 | 40m | - / -4 | G8FAT | -12 / - | 2 | ✓ Closing fragment |
| 09-21 00:39 | 40m | - / -10 | OD5ZZ | -9 / - | 3 | ✓ Closing fragment |
| 09-21 00:25 | 40m | - / - | UA9SY | -14 / - | 2 | Partial capture |
| 09-21 00:21 | 40m | - / -14 | G0YCE | -14 / - | 6 | ✓ Closing fragment |
| 09-21 00:17 | 40m | - / -14 | BG0FQU | -20 / - | 2 | Partial capture |
| 09-01 02:23 | 40m | -6 / - | OA4ENG | - / -15 | 4 | Partial capture |
| 08-25 20:38 | 20m | -20 / -16 | PD0MNO | -8 / -7 | 3 | ✓ Full exchange observed |
| 08-23 00:33 | 20m | - / -15 | XQ1KK | -3 / - | 3 | ✓ Closing fragment |
| 08-22 13:08 | 20m | - / -8 | RA9LL | -6 / - | 2 | ✓ Closing fragment |
| 08-20 13:16 | 20m | - / -10 | R5AV | -2 / - | 2 | ✓ Closing fragment |
| 08-20 12:55 | 20m | - / -17 | M6EQV | -10 / - | 4 | Partial capture |
| 08-18 23:42 | 40m | - / - | F6FDY | -11 / - | 3 | Partial capture |
| 08-18 23:42 | 40m | -6 / +9 | SV2HTW | -6 / -8 | 4 | ✓ Full exchange observed |
| 08-18 23:39 | 40m | -11 / - | OK1WCF | - / -18 | 3 | ✓ Closing fragment |
| 08-18 23:04 | 40m | -7 / - | R2DX | - / -20 | 8 | ✓ Closing fragment |
| 08-11 00:53 | 20m | - / -4 | DL9KM | -20 / - | 3 | ✓ Closing fragment |
| 08-11 00:33 | 20m | - / -9 | 9A2AJ | +3 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 002500 -14 777 IU8LMC UA9SY LO63 002500 -12 1472 IU8LMC G0YCE 73 002530 -13 777 IU8LMC UA9SY LO63 003930 -9 570 IU8LMC OD5ZZ -10 004000 -11 778 IU8LMC G8FAT R-04 (x2) 004130 -10 570 IU8LMC OD5ZZ R-13 (x2) 010600 -14 774 IU8LMC UK8FCM -11 (x2) 011900 -9 2305 IU8LMC UA9SAV LO81 (x3) 012000 -6 922 IU8LMC R4HHN LO43 (x2)
UTC dB Audio Message 125515 -6 1798 IU8LMC M6EQV JO02 (x4) 131530 -24 1926 CQ IU8LMC JN71 131645 -4 1928 IU8LMC R5AV -10 (x2) 130815 -8 2790 IU8LMC RA9LL -08 (x2) 003330 -4 1292 IU8LMC XQ1KK -15 (x3) 203800 -20 1877 PD0MNO IU8LMC -07 203815 +0 1876 IU8LMC PD0MNO R-16 (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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