YU1LD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YU1LD, decoded by SO8OO in southeastern Poland. 866 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 39 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-31.
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 866 FT8 messages attributed to YU1LD as the transmitting token by decoded message structure across 39 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (46%), followed by 20 m (30%) and 80 m (21%). Most decodes (90%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -0.5 dB.
Overview
Bands
Last attributed message: 2026-08-31 00:33 UTC
Observed FT8 message patterns
- Attributed sample
- 866 messages
- Active dates
- 39 UTC dates
- Estimated median S/N
- -0.5 dB
- Estimated 10th-90th percentile
- -16 to +17 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 96, moderate (-15 to -9 dB) 145, strong (≥ -8 dB) 625.
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 YU1LD 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 YU1LD
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
- KN04 · 604 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 608 km (approx.)
- Last such locator decoded
- 2026-08-31 00:26 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 | YU1LD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-31 00:31 | 160m | +18 / - | IT9SVJ | -22 / -7 | 3 | ✓ Closing observed |
| 08-31 00:24 | 160m | +16 / - | KP4AA | - / -16 | 14 | ✓ Closing fragment |
| 08-31 00:08 | 160m | +15 / - | KP4AA | - / - | 9 | Partial capture |
| 08-31 00:01 | 160m | +18 / - | KP4AA | - / - | 9 | Partial capture |
| 08-30 23:57 | 160m | +16 / -4 | YO8CKT | +3 / -16 | 7 | ✓ Full exchange observed |
| 08-30 23:54 | 160m | +18 / - | N1CQ | - / - | 5 | Partial capture |
| 08-30 23:45 | 160m | +18 / - | KD2DO | - / - | 2 | Partial capture |
| 08-30 23:31 | 160m | +17 / - | NY1V | - / -19 | 6 | ✓ Closing fragment |
| 08-30 23:26 | 160m | +19 / - | WK2M | - / - | 5 | Partial capture |
| 08-30 23:20 | 160m | +17 / - | TF8YA | - / -19 | 4 | ✓ Closing fragment |
| 08-30 20:52 | 160m | - / - | RY6O | -10 / - | 2 | Partial capture |
| 08-30 20:51 | 160m | +9 / - | RA9YTI | - / -19 | 3 | ✓ Closing fragment |
| 08-30 20:32 | 160m | +13 / - | RI1FJL | - / - | 11 | Partial capture |
| 08-30 00:33 | 160m | -6 / - | KP4U | - / - | 19 | Partial capture |
| 08-30 00:25 | 160m | -8 / - | KP4U | - / - | 11 | Partial capture |
| 08-30 00:03 | 160m | -11 / - | RI1FJL | - / - | 5 | Partial capture |
| 08-29 23:49 | 160m | -17 / - | RI1FJL | - / - | 4 | Partial capture |
| 08-29 18:02 | 80m | - / +10 | DO1ID | +1 / - | 2 | Partial capture |
| 08-29 17:57 | 80m | +20 / - | BX4AQ | - / -15 | 11 | ✓ Closing fragment |
| 08-29 17:48 | 80m | +14 / - | P29YY | - / -15 | 9 | ✓ Closing fragment |
| 08-29 17:39 | 80m | +11 / - | JA0GCI | - / -15 | 3 | ✓ Closing fragment |
| 08-29 17:33 | 80m | +14 / - | RD0R | - / -15 | 5 | Partial capture |
| 08-29 16:51 | 80m | +17 / - | RI1FJL | - / - | 5 | Partial capture |
| 08-29 00:55 | 80m | +20 / - | HI7S | - / - | 4 | Partial capture |
| 08-29 00:50 | 80m | +22 / -5 | DO8JB | +5 / -14 | 11 | ✓ Full exchange observed |
| 08-29 00:49 | 80m | +16 / - | YV4KWT | - / -15 | 3 | ✓ Closing fragment |
| 08-29 00:46 | 80m | +16 / - | TI2CC | - / - | 4 | Partial capture |
| 08-29 00:41 | 80m | - / - | OH4JFN | -8 / - | 2 | Partial capture |
| 08-29 00:40 | 80m | +16 / - | YV5IAL | - / -15 | 4 | Partial capture |
| 08-29 00:40 | 80m | - / - | F4GTB | +7 / - | 2 | Partial capture |
| 08-29 00:32 | 80m | +18 / - | YV5IAL | - / -15 | 6 | Partial capture |
| 08-29 00:16 | 80m | +15 / - | TI2CC | - / - | 3 | Partial capture |
| 08-28 23:02 | 80m | - / - | DL9KM | -5 / - | 6 | Partial capture |
| 08-28 23:01 | 80m | +16 / - | 9V1YC | - / -15 | 4 | ✓ Closing fragment |
| 08-28 21:59 | 80m | 0 / - | R2AL | - / - | 4 | Partial capture |
| 08-28 21:54 | 80m | - / -5 | ER5DX | -6 / - | 2 | ✓ Closing fragment |
| 08-28 21:39 | 160m | +3 / - | RA9ACA | - / - | 17 | Partial capture |
| 08-27 21:59 | 80m | -8 / - | RI1FJL | - / - | 15 | Partial capture |
| 08-27 21:46 | 80m | -9 / - | RI1FJL | - / - | 11 | Partial capture |
| 08-27 20:51 | 80m | -2 / - | RI1FJL | - / - | 2 | Partial capture |
| 08-27 19:48 | 80m | -9 / - | RI1FJL | - / - | 4 | Partial capture |
| 08-26 19:17 | 80m | -23 / -23 | RA2FU | 0 / - | 4 | ✓ Closing observed |
| 08-24 22:18 | 40m | +7 / - | LB9ZG | - / -20 | 4 | Partial capture |
| 08-19 23:17 | 80m | +1 / - | CE3SPR | - / - | 3 | Partial capture |
| 08-19 23:13 | 80m | +5 / - | CE3SPR | - / - | 4 | Partial capture |
| 08-19 23:08 | 80m | -9 / - | CE2SV | - / - | 9 | Partial capture |
| 08-19 23:06 | 80m | -1 / - | CE3SPR | - / - | 2 | Partial capture |
| 08-19 23:02 | 80m | -6 / - | CE2SV | - / - | 7 | Partial capture |
| 08-19 22:59 | 80m | -7 / -14 | SP6SR | +1 / -7 | 4 | ✓ Full exchange observed |
| 08-19 22:45 | 80m | 0 / - | CE3SPR | - / - | 7 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 002500 +16 788 KP4AA YU1LD KN04 (x12) 003145 -22 1127 YU1LD IT9SVJ JM68 003230 +18 788 IT9SVJ YU1LD -07 (x2)
UTC dB Audio Message 175145 +9 750 P29YY YU1LD R-15 (x2) 175700 +22 750 BX4AQ YU1LD KN04 (x11) 180245 +1 381 YU1LD DO1ID +10 (x2)
UTC dB Audio Message 221815 +7 1114 LB9ZG YU1LD KN04 (x4)
UTC dB Audio Message 003730 -16 1999 YU1LD WO3T +03 003745 -14 2026 WO3T YU1LD R-09 003800 -17 1999 YU1LD WO3T RRR 003815 -17 2026 WO3T YU1LD 73 003830 -17 2000 YU1LD WO3T 73 003845 -18 1920 K4AOQ YU1LD KN04 003945 -16 1919 N3ZZU YU1LD -17 221345 -14 2296 YU1LD W3FOX -09 222915 -20 1672 CQ USA YU1LD KN04 222930 -16 1347 YU1LD KS4OT EM83 (x2) 230645 -6 640 YU1LD NS4P +00 (x2) 234300 -21 2113 YU1LD WA2TMC +13 (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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