ON5LC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ON5LC, decoded by SO8OO in southeastern Poland. 1,618 FT8 messages attributed to this token as transmitter, on 40m, across 44 UTC dates in the available aggregate history. Observed between 2026-08-15 and 2026-10-13.
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 1,618 FT8 messages attributed to ON5LC as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (90%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-10-13 16:41 UTC
Observed FT8 message patterns
- Attributed sample
- 1,618 messages
- Active dates
- 44 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -17 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 252, moderate (-15 to -9 dB) 725, strong (≥ -8 dB) 641.
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 ON5LC 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 ON5LC
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
- JO20 · 878 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,194 km (approx.)
- Last such locator decoded
- 2026-10-13 16:41 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 | ON5LC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-13 16:39 | 40m | - / -8 | SV8NAJ | -19 / - | 2 | Partial capture |
| 10-13 16:39 | 40m | -10 / -4 | UT3RO | 0 / -8 | 5 | ✓ Full exchange observed |
| 10-13 16:37 | 40m | -10 / +4 | F4PCM | -9 / -1 | 5 | ✓ Full exchange observed |
| 10-13 16:32 | 40m | - / - | DF0BT | -2 / - | 2 | Partial capture |
| 10-13 16:30 | 40m | -6 / +3 | OH3MB | +6 / -10 | 5 | ✓ Full exchange observed |
| 10-13 16:24 | 40m | -10 / - | R8LCA | - / -20 | 4 | Partial capture |
| 10-13 16:15 | 40m | - / - | F4JYH | -8 / - | 5 | Partial capture |
| 10-13 10:03 | 40m | - / -12 | HA1BF | -6 / - | 3 | ✓ Closing fragment |
| 10-12 21:15 | 40m | - / -8 | EA5EE | -4 / - | 2 | Partial capture |
| 10-12 20:18 | 40m | - / -12 | EA5HM | -17 / - | 3 | ✓ Closing fragment |
| 10-12 14:36 | 40m | - / - | SP9AWP | -1 / - | 2 | Partial capture |
| 10-12 14:30 | 40m | - / +9 | DL8TV | +1 / - | 3 | ✓ Closing fragment |
| 10-12 14:22 | 40m | -24 / - | DL1TRK | -14 / - | 3 | ✓ Closing observed |
| 10-12 14:17 | 40m | -24 / - | DH5HS | -13 / +8 | 6 | ✓ Full exchange observed |
| 10-12 14:12 | 40m | - / -15 | UT4WT | -1 / - | 6 | ✓ Closing fragment |
| 10-12 12:05 | 40m | - / - | OM8AMF | -8 / - | 2 | Partial capture |
| 10-12 12:00 | 40m | - / -17 | OE3SKB | -20 / - | 3 | ✓ Closing fragment |
| 10-09 09:02 | 40m | - / -9 | DF3IS | -9 / - | 3 | ✓ Closing fragment |
| 10-08 15:08 | 40m | - / - | HB9TTZ | -17 / - | 2 | Partial capture |
| 10-08 15:00 | 40m | - / -15 | OK1ND | -6 / - | 6 | Partial capture |
| 10-08 10:08 | 40m | - / - | OH3MB | -16 / - | 2 | Partial capture |
| 10-07 16:14 | 40m | - / -5 | ON1AJ | -9 / - | 4 | ✓ Closing fragment |
| 10-07 16:12 | 40m | - / - | F4IIX | -12 / - | 2 | ✓ Closing fragment |
| 10-07 15:55 | 40m | - / - | ON1AJ | -12 / - | 2 | Partial capture |
| 10-07 15:45 | 40m | - / - | F4BYA | 0 / - | 3 | Partial capture |
| 10-07 15:38 | 40m | - / -5 | G8VJU | -12 / - | 2 | Partial capture |
| 10-07 15:29 | 40m | - / -17 | I4BUQ | -7 / - | 4 | ✓ Closing fragment |
| 10-07 15:25 | 40m | - / - | ON3BKY | -16 / - | 2 | ✓ Closing fragment |
| 10-07 13:31 | 40m | - / -9 | OT4R | -19 / - | 2 | ✓ Closing fragment |
| 10-07 13:27 | 40m | - / +10 | F5ADE | -23 / - | 3 | ✓ Closing fragment |
| 10-05 19:25 | 40m | - / - | F4BYA | +2 / - | 2 | Partial capture |
| 10-02 19:09 | 40m | -13 / +2 | G0THY | -16 / - | 5 | ✓ Closing observed |
| 10-02 19:02 | 40m | - / - | F4BYA | -2 / - | 4 | Partial capture |
| 10-02 19:00 | 40m | -9 / -20 | IU8VMZ | -6 / -6 | 2 | Partial capture |
| 10-02 18:58 | 40m | - / - | F4BYA | -3 / - | 4 | Partial capture |
| 10-02 18:45 | 40m | -8 / - | OZ0A | -7 / -9 | 3 | Partial capture |
| 10-02 18:42 | 40m | -9 / - | R8LB | -2 / - | 3 | ✓ Closing observed |
| 10-02 18:39 | 40m | -8 / - | SQ9BDB | - / -12 | 3 | ✓ Closing fragment |
| 10-02 18:38 | 40m | - / - | F4BYA | 0 / - | 4 | Partial capture |
| 10-02 18:37 | 40m | -10 / - | PA1MOS | - / +5 | 2 | ✓ Closing fragment |
| 10-02 18:33 | 40m | -7 / - | SP3EIE | - / -10 | 3 | ✓ Closing fragment |
| 10-02 18:29 | 40m | -8 / -19 | UR3CFC | -2 / -10 | 5 | ✓ Full exchange observed |
| 10-02 18:27 | 40m | -6 / +6 | GJ0KYZ | -3 / - | 3 | ✓ Full exchange observed |
| 10-02 18:26 | 40m | - / - | F4BYA | +2 / - | 4 | Partial capture |
| 10-02 18:23 | 40m | -5 / -7 | DL6ZOG | -9 / +7 | 2 | Partial capture |
| 10-02 18:21 | 40m | -4 / 0 | DC5CH | -4 / +3 | 4 | ✓ Full exchange observed |
| 10-02 18:20 | 40m | -2 / - | MW9VVX | - / +1 | 2 | ✓ Closing fragment |
| 10-02 18:16 | 40m | -3 / -14 | SP2SGZ | -1 / - | 5 | ✓ Closing observed |
| 10-02 18:16 | 40m | -8 / -11 | F5JAE | -13 / -2 | 4 | ✓ Full exchange observed |
| 10-02 05:28 | 40m | -18 / - | SP1MGM | - / +5 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 163715 -10 2437 F4PCM ON5LC -01 163730 -7 2435 ON5LC F4PCM R+04 163745 -10 2436 F4PCM ON5LC RR73 163800 -9 2435 ON5LC F4PCM 73 163815 -10 2436 CQ ON5LC JO20 (x2) 163900 +2 2430 ON5LC UT3RO KO60 163915 -8 2436 M7XRW ON5LC +00 163930 -17 1765 ON5LC SV8NAJ -08 164015 -11 2437 UT3RO ON5LC -08 164030 +2 2430 ON5LC UT3RO R-04 164045 -8 2437 UT3RO ON5LC RR73 164100 -3 2429 ON5LC UT3RO 73 164100 -21 1765 ON5LC SV8NAJ -08 164145 -12 2437 CQ ON5LC JO20
UTC dB Audio Message 193000 +13 260 ON5LC UX7QV KN29 (x7) 200115 -18 2306 ON5LC RZ6ALZ LN06
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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