S59YL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovenia Most frequent locator attributed to this token: JN65

Receiver-side FT8 activity involving S59YL, decoded by SO8OO in southeastern Poland. 1,334 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-09-14.

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 1,334 FT8 messages attributed to S59YL as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (78%), followed by 80 m (18%) and 10 m (3%). Most decodes (81%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.2 dB.

Overview

1,334
Messages attributed
26
UTC dates decoded
115
Active 15-min windows
-7.2 dB
Estimated median S/N

Bands

160m · 9 80m · 240 40m · 1,039 20m · 2 10m · 44
First attributed message: 2026-06-29
Last attributed message: 2026-09-14 22:55 UTC

Observed FT8 message patterns

Attributed sample
1,334 messages
Active dates
26 UTC dates
Estimated median S/N
-7.2 dB
Estimated 10th-90th percentile
-16 to +6.5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 162, moderate (-15 to -9 dB) 451, strong (≥ -8 dB) 721.

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 S59YL 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 S59YL

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
JN65 · 671 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
821 km (approx.)
Last such locator decoded
2026-09-14 22:55 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 UTCBandS59YL S/NCounterpartCounterpart S/NMsgsCapture
09-14 22:50 80m -2 / - KP4AA - / - 11 Partial capture
09-14 22:44 80m +3 / - KP4AA - / - 3 Partial capture
09-09 20:59 80m -8 / - VU2NKS - / - 2 Partial capture
09-09 20:55 80m -6 / -22 EI5JL -20 / -11 7 ✓ Full exchange observed
09-09 20:53 80m -6 / - DO1TEM - / -3 2 ✓ Closing fragment
09-09 20:52 80m -6 / -1 YO4NF +8 / +9 4 ✓ Full exchange observed
09-09 20:49 80m -6 / -13 DL9DX +3 / +4 5 ✓ Full exchange observed
09-09 20:49 80m -6 / -11 PA3BMB -9 / +4 6 ✓ Full exchange observed
09-09 20:48 80m -4 / -10 HB3YBG -15 / +5 4 ✓ Full exchange observed
09-09 20:44 80m -8 / -5 YO9HP -4 / -1 4 ✓ Full exchange observed
09-09 20:42 80m -12 / - TA4RC - / - 3 Partial capture
09-07 05:13 40m +4 / - RK4FF - / -3 5 ✓ Closing fragment
09-07 05:08 40m +4 / - PY2DPM - / -12 4 ✓ Closing fragment
09-07 04:55 40m +2 / - N8WGE - / - 3 Partial capture
09-07 04:53 40m +6 / - J38DX - / 0 4 ✓ Closing fragment
09-06 20:23 40m +2 / - C31KC - / - 3 Partial capture
09-06 20:21 40m +2 / - HS0ZOY - / - 2 Partial capture
09-06 20:19 40m +2 / +2 G7SQS -4 / -4 2 Partial capture
09-06 20:17 40m +4 / - EX7CQ - / +1 3 ✓ Closing fragment
09-06 20:16 40m +1 / - Z68BR - / - 2 Partial capture
09-06 20:15 40m -2 / +9 DL7ARV +2 / -5 5 ✓ Full exchange observed
09-06 20:14 40m 0 / -20 PA8S -2 / - 6 ✓ Closing observed
09-06 20:12 40m +2 / - MW3VJN - / -18 2 ✓ Closing fragment
09-06 20:11 40m -1 / -1 IU2HUQ -3 / - 4 ✓ Full exchange observed
09-06 20:10 40m -1 / - SV5BYP -3 / - 4 ✓ Closing observed
09-04 05:32 40m -4 / -11 S56A +2 / - 3 ✓ Closing observed
09-04 05:30 40m -2 / - UR4QWW -16 / -10 3 ✓ Closing observed
09-04 05:28 40m -6 / - HK3YL - / -11 4 ✓ Closing fragment
09-03 20:40 40m -1 / - SV9QWC - / +3 4 ✓ Closing fragment
09-03 20:34 160m -2 / +1 SP5EWX -2 / +1 7 ✓ Full exchange observed
09-03 20:33 160m +1 / +7 OK1DXR -2 / -1 5 ✓ Full exchange observed
09-03 20:32 160m - / -10 SP5FWT -8 / - 4 Partial capture
09-03 20:32 160m +1 / - SP3BPU +11 / - 5 ✓ Closing observed
09-03 20:31 160m -1 / -4 SO1CJ -7 / -12 4 ✓ Full exchange observed
09-03 05:12 40m +2 / - HA5LB -11 / -10 4 Partial capture
09-03 05:11 40m +3 / - YV6BXN - / - 6 Partial capture
09-02 20:47 80m 0 / -13 GM6URC 0 / - 3 ✓ Closing observed
09-02 20:45 80m +3 / -17 5Z4VJ -12 / -15 6 ✓ Full exchange observed
09-02 20:27 80m -6 / - 5Z4VJ - / - 20 Partial capture
09-02 20:24 80m -2 / - ON8HW - / - 2 Partial capture
09-02 20:21 80m -7 / -9 OZ7CL +8 / +3 5 ✓ Full exchange observed
09-02 20:14 80m -13 / - PE1NPS - / -17 2 ✓ Closing fragment
09-02 20:09 80m -3 / - V51WH - / -17 9 ✓ Closing fragment
09-02 20:07 80m -4 / -9 RL2F +7 / -5 6 ✓ Full exchange observed
09-02 20:05 80m -4 / - V51WH - / - 2 Partial capture
09-02 19:58 80m -6 / -17 V51WH -13 / - 6 Partial capture
09-02 19:51 80m +8 / - YO4LUP - / -22 2 ✓ Closing fragment
09-02 19:50 80m +10 / - JH2FXK - / -24 2 ✓ Closing fragment
09-02 19:48 80m +4 / - OG6N -14 / -17 3 ✓ Closing observed
09-02 19:47 80m +6 / - DL6SAK - / -3 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
205945  -9 2053  VU2NKS S59YL JN65
224415  +4 1734  KP4AA S59YL JN65 (x14)
40m 
UTC    dB Audio  Message
045500  +4 2202  J38DX S59YL 73
045530  +3 2202  N8WGE S59YL JN65 (x3)
050800  +3 2202  PY2DPM S59YL -12 (x4)
051230  +9 2202  CQ S59YL JN65
051315  -4 2636  S59YL SP5EXA KO02
051315  +6 2202  RK4FF S59YL JN65 (x5)
160m 
UTC    dB Audio  Message
203345  +3 1295  S59YL OK1DXR JO60
203400  +5 2251  OK1DXR S59YL -01
203415  -6 1295  S59YL OK1DXR R+07
203430  -3 2251  OK1DXR S59YL RR73
203445  -8  550  S59YL SP5FWT -08
203445  -3 1809  S59YL SP5EWX KO01
203445  -2 1295  S59YL OK1DXR 73
203515  -6 1809  S59YL SP5EWX KO01 (x2)
203600  +0 2251  SP5EWX S59YL +01
203615  +3 1809  S59YL SP5EWX R+01
203630  -5 2251  SP5EWX S59YL RR73
203645  -6  550  S59YL SP5FWT -04
203645  -2 1809  S59YL SP5EWX 73
203815 -10  549  S59YL SP5FWT -04
10m 
UTC    dB Audio  Message
181815 -18 1528  OZ2BMN S59YL JN65 (x2)
181945 -17 1527  CQ S59YL JN65                         a1
182100 -13 2129  DN9NP S59YL JN65 (x4)
192230 -15 2176  LA1HW S59YL JN65 (x4)
195330  +3 2843  S59YL RD7KW R-19 (x2)
161945 -23 1630  PP5HR S59YL JN65
162045 -14 1551  ZA5G S59YL JN65
20m 
UTC    dB Audio  Message
165815 -12 2064  3A2MW S59YL JN65 (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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