S54L — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving S54L, decoded by SO8OO in southeastern Poland. 201 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-08-30.
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 201 FT8 messages attributed to S54L as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 160 m (26%) and 40 m (14%). In this small sample, the estimated median decoder S/N was +4 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-30 09:30 UTC
Observed FT8 message patterns
- Attributed sample
- 201 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- +4 dB
- Estimated 10th-90th percentile
- -14 to +15 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 165.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with S54L 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 S54L
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
- JN75 · 66 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 708 km (approx.)
- Last such locator decoded
- 2026-08-30 09:30 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 | S54L S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-30 09:12 | 10m | -8 / - | OH2ZZ | - / -11 | 4 | ✓ Closing fragment |
| 08-30 09:11 | 10m | -6 / - | <...> | - / -18 | 2 | Partial capture |
| 08-30 08:50 | 10m | -18 / - | UT0UE | - / -8 | 3 | ✓ Closing fragment |
| 08-30 08:49 | 10m | -18 / - | SQ9DJQ | - / -19 | 2 | Partial capture |
| 08-30 06:03 | 80m | +19 / -2 | F4FQY | -2 / - | 4 | ✓ Full exchange observed |
| 08-30 05:58 | 80m | +5 / - | F4JBR | - / +3 | 3 | ✓ Closing fragment |
| 08-30 05:56 | 80m | +6 / - | LY7Z | - / - | 2 | Partial capture |
| 08-30 05:40 | 20m | - / - | R8JG | -9 / - | 2 | Partial capture |
| 08-30 04:53 | 80m | +10 / - | AB2E | - / - | 2 | ✓ Closing fragment |
| 08-30 04:52 | 80m | +7 / - | W4KFC | - / - | 3 | ✓ Closing fragment |
| 08-30 04:47 | 80m | +9 / - | W1IE | - / -18 | 5 | Partial capture |
| 08-30 04:44 | 80m | +12 / - | AA3B | - / -6 | 3 | ✓ Closing fragment |
| 08-30 04:42 | 80m | - / - | UT1XU | 0 / - | 2 | Partial capture |
| 08-30 04:40 | 80m | +4 / - | N3FCP | - / - | 3 | ✓ Closing fragment |
| 08-30 04:31 | 160m | -13 / - | K1SFA | - / - | 2 | Partial capture |
| 08-30 04:26 | 160m | -16 / - | K1SFA | - / - | 4 | Partial capture |
| 08-30 02:19 | 80m | +14 / - | OH6FSO | - / -15 | 2 | ✓ Closing fragment |
| 08-30 02:17 | 80m | +17 / -1 | DL9ATW | +3 / - | 4 | ✓ Closing observed |
| 08-30 02:16 | 80m | +16 / - | W1IE | - / -24 | 3 | Partial capture |
| 08-30 02:14 | 80m | 0 / - | VE3LWY | - / -23 | 2 | ✓ Closing fragment |
| 08-30 02:13 | 80m | -2 / - | UR9QQ | - / -21 | 2 | ✓ Closing fragment |
| 08-30 02:10 | 80m | -1 / - | KE4EB | - / -9 | 2 | ✓ Closing fragment |
| 08-30 02:09 | 80m | +1 / - | IT9BYL | - / -10 | 3 | ✓ Closing fragment |
| 08-30 02:08 | 80m | +10 / - | 9A4ZM | +7 / 0 | 5 | ✓ Full exchange observed |
| 08-30 02:07 | 80m | +12 / - | VP2MAA | - / - | 2 | ✓ Closing fragment |
| 08-30 01:20 | 160m | - / - | RA6FC | -7 / - | 3 | Partial capture |
| 08-30 01:19 | 160m | - / - | 9A4ZM | -1 / - | 3 | Partial capture |
| 08-30 01:17 | 160m | +8 / -17 | 4L1FL | -1 / -10 | 5 | ✓ Full exchange observed |
| 08-30 00:29 | 40m | -10 / - | HK3W | - / - | 2 | Partial capture |
| 08-30 00:25 | 40m | - / -4 | UA9CR | -8 / - | 2 | Partial capture |
| 08-30 00:24 | 40m | -8 / - | W1IE | - / - | 2 | ✓ Closing fragment |
| 08-30 00:18 | 80m | +10 / -11 | LZ2VQ | -3 / +1 | 30 | ✓ Full exchange observed |
| 08-30 00:17 | 80m | +8 / - | NG2O | -24 / - | 2 | ✓ Closing observed |
| 08-30 00:17 | 80m | +10 / - | F5RRS | - / +1 | 2 | ✓ Closing fragment |
| 08-30 00:15 | 80m | +8 / -5 | WM4W | -13 / -14 | 3 | ✓ Full exchange observed |
| 08-30 00:14 | 80m | +12 / - | VA3TIC | -21 / - | 4 | ✓ Closing observed |
| 08-30 00:09 | 80m | +10 / 0 | 4X1UF | -19 / -12 | 4 | ✓ Full exchange observed |
| 08-29 23:58 | 40m | 0 / 0 | RW9ULK | -13 / -1 | 4 | ✓ Full exchange observed |
| 08-29 23:56 | 40m | - / - | EA1IOK | -11 / - | 2 | Partial capture |
| 08-29 23:54 | 40m | -5 / - | PT7RF | - / -5 | 3 | ✓ Closing fragment |
| 08-29 23:53 | 160m | 0 / - | SP3EFD | -8 / -11 | 3 | Partial capture |
| 08-29 23:52 | 40m | -5 / - | VA2WMA | - / - | 2 | Partial capture |
| 08-29 23:50 | 160m | -1 / -11 | 4X1YA | -6 / -15 | 5 | ✓ Full exchange observed |
| 08-29 23:49 | 40m | -9 / - | OA4ENG | - / -12 | 2 | Partial capture |
| 08-29 23:47 | 40m | -16 / -9 | NP4EI | -23 / - | 4 | ✓ Closing observed |
| 08-29 23:10 | 80m | - / - | UA4FKT | +9 / - | 3 | Partial capture |
| 08-29 23:09 | 80m | +10 / -4 | RC6OU | +10 / +4 | 5 | ✓ Full exchange observed |
| 08-29 23:08 | 80m | +11 / - | 4X1UF | - / - | 2 | Partial capture |
| 08-29 22:44 | 40m | -10 / - | N2BJ | - / - | 2 | ✓ Closing fragment |
| 08-29 22:27 | 40m | - / -3 | EA2DR | -14 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 084930 -18 1866 SQ9DJQ S54L -19 (x2) 085030 -18 1866 UT0UE S54L JN75 (x3) 091145 -7 1863 <...> S54L JN75 (x2) 091245 -15 1863 OH2ZZ S54L JN75 (x4) 093000 -22 1863 VK6RO S54L JN75
UTC dB Audio Message 045245 +4 2073 W4KFC S54L R JN75 (x2) 045345 +12 1265 AB2E S54L JN75 045415 +7 1801 W1IE S54L JN75 045515 +9 1265 AB2E S54L RR73 055615 +2 1236 LY7Z S54L JN75 (x2) 055845 +6 1313 F4JBR S54L JN75 (x3) 060200 +1 1703 IR7MGGC S54L R+10 060315 -1 2823 S54L F4FQY -02 060330 +18 2823 F4FQY S54L R+12 060345 -2 2823 S54L F4FQY RR73 060400 +20 2823 F4FQY S54L 73
UTC dB Audio Message 171100 -20 1612 BG4UVR S54L RR73 171115 -10 1679 S54L DL3MIB JN57 (x5) 212045 -17 1368 S54L PP5HR -09 (x2) 212445 -11 2693 LU1GBS S54L R JN75 232600 -9 534 S54L TJ1GD -11 045730 +7 1774 S54L UA4FEN -15 053315 -14 970 S54L ZL2BX +13 053645 -4 1822 S54L TA2EE KM69 054015 -7 2620 S54L R8JG MP61 (x2)
UTC dB Audio Message 011815 +9 1593 4L1FL S54L R-10 011830 -1 1593 S54L 4L1FL RR73 011845 +10 1593 4L1FL S54L 73 011900 +0 1589 S54L 9A4ZM JN86 (x2) 012000 -6 945 S54L RA6FC LN13 012000 -1 1589 S54L 9A4ZM JN86 012030 -8 945 S54L RA6FC LN13 (x2) 042630 -18 1651 K1SFA S54L JN75 (x6)
UTC dB Audio Message 235930 +0 2491 RW9ULK S54L 73 000030 -4 2491 EB2EMZ S54L +03 000130 -1 2491 RO6G S54L 73 002415 -7 1835 W1IE S54L JN75 (x2) 002530 -7 987 S54L UA9CR -04 (x2) 002900 -9 1785 HK3W S54L JN75 (x2) 003745 +5 436 UI6O S54L JN75 031700 -5 2437 S54L YO4NF -07 032215 -11 2650 RM6OS S54L R+00 033300 -19 1743 S54L YO4NF -02 033600 -11 2416 S54L RK4FF +10 033745 -17 2415 W3IF S54L R JN75
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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