YU1LD — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Serbia Most frequent locator attributed to this token: KN04

Receiver-side FT8 activity involving YU1LD, decoded by SO8OO in southeastern Poland. 2,098 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 67 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-05.

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 2,098 FT8 messages attributed to YU1LD as the transmitting token by decoded message structure across 67 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (47%), followed by 80 m (22%) and 60 m (14%). Most decodes (83%) 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 (62%); the estimated median was -5 dB.

Overview

2,098
Messages attributed
67
UTC dates decoded
260
Active 15-min windows
-5 dB
Estimated median S/N

Bands

160m · 976 80m · 472 60m · 295 40m · 96 20m · 259
First attributed message: 2026-06-06
Last attributed message: 2026-11-05 01:35 UTC

Observed FT8 message patterns

Attributed sample
2,098 messages
Active dates
67 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-19 to +15 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 358, moderate (-15 to -9 dB) 446, strong (≥ -8 dB) 1,294.

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 · 1,714 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
608 km (approx.)
Last such locator decoded
2026-11-05 01:35 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 UTCBandYU1LD S/NCounterpartCounterpart S/NMsgsCapture
11-05 01:35 160m -8 / - 6W/IK2HKT - / - 2 Partial capture
11-05 01:32 160m -12 / - <...> - / - 2 Partial capture
11-05 01:29 160m -12 / - HI8ML - / - 5 Partial capture
11-05 01:28 160m -8 / - <...> - / - 2 Partial capture
11-05 01:27 160m -9 / - HI3A - / - 2 Partial capture
11-05 01:22 160m -9 / - HK4EIC - / - 3 Partial capture
11-05 01:21 160m -8 / - HI8ML - / - 7 Partial capture
11-05 01:20 160m -7 / - <...> - / - 2 Partial capture
11-05 01:15 160m -7 / - PY5XT - / -20 6 ✓ Closing fragment
11-04 10:11 10m - / - 4X5CG -5 / - 5 Partial capture
11-04 10:07 10m - / - CR7BUW -21 / - 2 Partial capture
11-04 00:20 160m -6 / - RK3AW/P - / - 5 Partial capture
11-04 00:10 160m -11 / - RK3AW/P - / - 9 Partial capture
11-04 00:05 160m -3 / +7 DL5EBS -5 / - 8 ✓ Closing observed
11-04 00:04 160m -3 / - DL4RAQ -9 / -18 4 ✓ Closing observed
11-04 00:03 160m -18 / - RK3AW/P - / - 2 Partial capture
11-03 23:49 160m -13 / - 6W/IK2HKT - / - 25 Partial capture
11-03 23:38 160m -14 / - 6W/IK2HKT - / -26 16 Partial capture
11-03 23:34 160m -14 / - 6W/IK2HKT - / -26 3 Partial capture
11-03 23:24 160m -12 / - RK3AW/P - / - 18 Partial capture
11-03 23:23 160m -13 / - YO1BRANCUSI - / - 2 Partial capture
11-03 23:13 160m -12 / - RK3AW/P - / - 9 Partial capture
11-03 23:10 160m -4 / - DUSANE73 - / - 6 Partial capture
11-03 23:04 160m -4 / - 6W/IK2HKT - / - 9 Partial capture
11-03 21:29 160m -13 / - 6W/IK2HKT - / - 3 Partial capture
11-03 21:09 160m -20 / - RK3AW/P - / - 2 Partial capture
11-03 21:05 160m -20 / - RK3AW/P - / - 2 Partial capture
11-03 20:47 160m -21 / - RK3AW/P - / - 9 Partial capture
11-03 20:41 160m -5 / -5 I8OHQ 0 / - 3 ✓ Closing observed
11-02 00:37 160m -13 / - RU4CK/P - / - 4 Partial capture
11-02 00:28 60m -8 / - C5R - / -24 6 ✓ Closing fragment
11-02 00:27 60m -13 / -1 DC6MY +11 / - 4 ✓ Closing observed
11-02 00:26 60m -8 / - AA9JC - / -23 2 ✓ Closing fragment
11-02 00:22 60m -7 / - C5R - / - 5 Partial capture
11-02 00:09 60m -10 / - 8P6GY - / -24 6 ✓ Closing fragment
11-02 00:06 60m -12 / - 8P6GY - / - 2 Partial capture
11-02 00:00 60m -6 / - OK1TRJ - / 0 3 Partial capture
11-01 23:59 60m +2 / - C5R - / - 3 Partial capture
11-01 23:56 60m -1 / - 6P6GY - / - 5 Partial capture
11-01 23:54 60m -3 / - C5R - / - 3 Partial capture
11-01 23:49 60m -6 / - C5R - / - 4 Partial capture
11-01 23:48 60m -2 / +7 ON8WR -13 / - 6 ✓ Closing observed
11-01 23:46 60m -9 / - 6W/IK2HKT - / -18 3 Partial capture
11-01 21:34 80m -8 / - II4GCLB - / - 5 Partial capture
10-28 21:06 160m -17 / -14 UA3ALY -3 / - 3 ✓ Closing observed
10-28 21:05 160m -14 / -7 IK1MJK -16 / -16 5 ✓ Full exchange observed
10-28 20:56 160m -12 / - XX9TXN - / - 2 Partial capture
10-28 20:53 160m - / - DL1FLW -18 / - 3 Partial capture
10-28 20:53 160m - / - DF4WQ -15 / - 2 Partial capture
10-28 20:48 160m -11 / - XX9TXN - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

160m 
UTC    dB Audio  Message
012515  -4 1525  HI8ML YU1LD KN04 (x2)
012715  -8 1525  HI3A YU1LD KN04 (x2)
012845  -6 1525  <...> YU1LD KN04 (x2)
012945 -15 1525  HI8ML YU1LD KN04 (x5)
013215 -10 1525  <...> YU1LD KN04 (x2)
013515  -8 2125  6W/IK2HKT YU1LD KN04 (x2)
10m 
UTC    dB Audio  Message
105945 -12 2217  YU1LD EP2AES -01 (x3)
100330 -22 1595  YU1LD CR7BUW IM58 (x3)
101100  -5 1583  YU1LD 4X5CG KM71 (x5)
60m 
UTC    dB Audio  Message
002315  -5 1980  C5R YU1LD KN04 (x3)
002615  -9 1980  AA9JC YU1LD -23 (x2)
002700 +14  793  YU1LD DC6MY JN58 (x2)
002745 -13 1980  DC6MY YU1LD RR73
002800  +7  793  YU1LD DC6MY 73
002815  -7 1980  C5R YU1LD KN04 (x6)
80m 
UTC    dB Audio  Message
172830  -4 2115  YU1LD IQ4JO JN63
172900  -7 1937  YU1LD DO1MDO JO50
172915  -1 1513  3D2USU YU1LD KN04
172930 -18 1937  YU1LD DO1MDO JO50
173015  -8 1557  3D2USU YU1LD KN04
174230 -24 2442  YU1LD DO5AX JO52
200045  -3 1563  XX9TXN YU1LD KN04 (x4)
213415 -10 1512  II4GCLB YU1LD KN04 (x5)
40m 
UTC    dB Audio  Message
161215  +2 1626  XX9TXN YU1LD KN04 (x15)

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.

Explore CW reception at SO8OO

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