S58Y — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovenia Most frequent locator attributed to this token: JN76

Receiver-side FT8 activity involving S58Y, decoded by SO8OO in southeastern Poland. 260 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-14 and 2026-09-18.

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 260 FT8 messages attributed to S58Y as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (67%), followed by 80 m (32%) and 160 m (2%). Several six-hour UTC windows tied for the largest share (81%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (99%); the estimated median was +10 dB.

Overview

260
Messages attributed
3
UTC dates decoded
16
Active 15-min windows
+10 dB
Estimated median S/N

Bands

160m · 4 80m · 83 40m · 173
First attributed message: 2026-09-14
Last attributed message: 2026-09-18 05:47 UTC

Observed FT8 message patterns

Attributed sample
260 messages
Active dates
3 UTC dates
Estimated median S/N
+10 dB
Estimated 10th-90th percentile
+1 to +19 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 258.

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 S58Y 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 S58Y

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
JN76 · 139 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
631 km (approx.)
Last such locator decoded
2026-09-18 05:41 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 UTCBandS58Y S/NCounterpartCounterpart S/NMsgsCapture
09-18 05:46 80m 0 / - OZ6MM -13 / -20 5 ✓ Closing observed
09-18 05:41 80m -5 / -1 SP9WAZ +15 / -9 10 ✓ Full exchange observed
09-18 05:36 80m - / - DL9KM -20 / - 7 Partial capture
09-18 05:36 80m - / - IZ6BYS -23 / - 3 Partial capture
09-18 05:35 80m -1 / -6 DL2HUC -7 / -6 10 Partial capture
09-18 05:33 80m 0 / -7 DA1ST -1 / +1 7 ✓ Full exchange observed
09-18 05:31 80m +3 / -11 PA3CPS -5 / -6 5 ✓ Full exchange observed
09-18 05:30 80m - / - ON4MAP -23 / - 3 Partial capture
09-18 05:30 80m - / - ON7HM -19 / - 3 Partial capture
09-18 05:30 80m - / - DL2HUC -5 / - 4 Partial capture
09-18 05:23 80m - / - DO9UWE -20 / - 4 Partial capture
09-18 05:23 80m +9 / -18 2W0YOX -13 / -15 8 Partial capture
09-18 05:23 80m +8 / - DL3FBI -12 / -13 3 Partial capture
09-18 05:23 80m +7 / +8 DO1ID +2 / -9 4 ✓ Full exchange observed
09-18 05:22 80m - / -1 ON7HM -22 / - 3 Partial capture
09-18 05:21 80m - / - DK3TNA -10 / - 3 Partial capture
09-18 05:21 80m +7 / -13 YO8XFU +4 / -7 6 ✓ Full exchange observed
09-18 05:20 80m - / - G0BLB -14 / - 3 Partial capture
09-18 05:20 80m +11 / - ON3MOH - / -17 2 ✓ Closing fragment
09-18 05:18 80m +4 / -1 IZ2EWN -15 / -2 5 ✓ Full exchange observed
09-17 19:35 80m +9 / -3 OE5ABL -2 / - 4 Partial capture
09-17 19:32 80m - / - OZ1PFH +5 / - 5 Partial capture
09-17 19:30 80m - / -16 HB3YOY -8 / - 11 Partial capture
09-17 19:29 80m - / - PH7GD -8 / - 4 Partial capture
09-17 19:28 80m - / - SV1EKI -12 / - 11 Partial capture
09-17 19:27 80m - / - UX7QV +3 / - 7 Partial capture
09-17 19:26 80m - / - SP3TD -12 / - 4 Partial capture
09-17 19:23 80m - / - DL9KM -10 / - 3 Partial capture
09-17 19:22 80m - / -11 HB3YOY -11 / - 7 Partial capture
09-17 19:21 80m - / - HF5A +11 / - 2 Partial capture
09-17 19:21 80m +7 / -4 OK1DBE +8 / - 6 ✓ Closing observed
09-17 19:19 80m - / - DF5RA -3 / - 2 Partial capture
09-17 19:19 80m - / - SP3TD -3 / - 2 Partial capture
09-17 19:18 80m - / - SV1EKI -12 / - 3 Partial capture
09-17 19:18 80m +7 / +10 DK7ZT +8 / -7 3 ✓ Full exchange observed
09-17 19:18 80m - / -14 RC2DT -2 / - 2 Partial capture
09-17 19:17 80m - / - DH2YBG -9 / - 2 Partial capture
09-17 19:17 80m - / - DO9BAU +3 / - 45 Partial capture
09-17 19:14 80m +10 / -11 HF5A +8 / -14 8 Partial capture
09-17 19:14 80m - / -13 SP6FME +15 / - 3 ✓ Closing fragment
09-17 18:16 40m +3 / - SP9UPH - / +3 2 Partial capture
09-17 18:16 40m - / - RX9ABI -11 / - 3 Partial capture
09-17 18:15 40m - / - F5PBG 0 / - 2 Partial capture
09-17 18:14 40m - / -12 OE5GQQ +16 / - 2 Partial capture
09-17 18:13 40m +6 / - UX7QV -14 / -10 3 ✓ Closing observed
09-17 18:12 40m +6 / +3 SP3HCA +8 / - 3 ✓ Closing observed
09-17 18:10 40m - / - R3LDK -3 / - 2 Partial capture
09-17 18:10 40m +6 / - OH3OJ - / -11 2 ✓ Closing fragment
09-17 18:10 40m - / -1 RC9WC -1 / - 2 Partial capture
09-17 18:08 40m +5 / - US2YW - / -4 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
054145  +5  699  <S58Y> SN40KZE
054200  +1  955  SP9WAZ S58Y -09
054215 +19  451  S58Y SP9WAZ R-01
054230  +2  955  SP9WAZ S58Y RRR
054245 +15  451  S58Y SP9WAZ 73
054300  -2  955  SP9WAZ S58Y RRR (x5)
054600  +3  451  OZ6MM S58Y R-20 (x3)
054745 -14  452  S58Y OZ6MM RR73 (x2)
40m 
UTC    dB Audio  Message
181430 +17 2780  S58Y OE5GQQ -12
181445  +2  877  CQ S58Y JN76
181500 +14 2779  S58Y OE5GQQ -12
181500  +9  877  CQ S58Y JN76 (x2)
181530  +2  877  S58Y F5PBG IN78
181545  +5  877  CQ S58Y JN76
181600 -12  250  S58Y RX9ABI MO05
181600  -5 2584  S58Y RC9WC +03
181600  -2  877  S58Y F5PBG IN78
181615  +5  877  CQ S58Y JN76
181630 -11  250  S58Y RX9ABI MO05
181645  -1  877  SP9UPH S58Y +03
181700  -9  250  S58Y RX9ABI MO05
181715  +7  877  SP9UPH S58Y RRR
160m 
UTC    dB Audio  Message
183630  -4 2729  LY7M S58Y JN76
183800  +0 2729  DJ2XY S58Y JN76
183815  -7 2100  S58Y DJ2XY -06
183830  -4 2729  DJ2XY S58Y R-09
183845 -10 2100  S58Y DJ2XY RR73
183900  +0 2729  DJ2XY S58Y 73

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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