S56OB — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving S56OB, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 15 UTC dates in the available aggregate history. Observed between 2026-07-09 and 2026-09-20.

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 94 FT8 messages attributed to S56OB as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (40%), followed by 20 m (26%) and 80 m (18%). Most decodes (88%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (62%); the estimated median was -17 dB.

Overview

94
Messages attributed
15
UTC dates decoded
24
Active 15-min windows
-17 dB
Estimated median S/N

Bands

160m · 1 80m · 17 60m · 6 40m · 38 20m · 24 10m · 8
First attributed message: 2026-07-09
Last attributed message: 2026-09-20 19:28 UTC

Observed FT8 message patterns

Attributed sample
94 messages
Active dates
15 UTC dates
Estimated median S/N
-17 dB
Estimated 10th-90th percentile
-22 to -11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 58, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 2.

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 S56OB 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 S56OB

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 · 48 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
631 km (approx.)
Last such locator decoded
2026-08-05 17:02 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 UTCBandS56OB S/NCounterpartCounterpart S/NMsgsCapture
09-20 19:38 60m - / -9 CN8DN -22 / - 8 ✓ Closing fragment
09-20 19:27 60m -18 / -13 EB3JT -16 / +4 5 Partial capture
09-20 19:24 40m -17 / -10 OK8UQ +9 / -10 5 Partial capture
09-13 21:38 40m - / - DJ0MAB -16 / - 2 Partial capture
09-13 21:35 40m - / -3 M0BEW -6 / - 3 ✓ Closing fragment
09-13 14:11 40m - / - HG8LXL -6 / - 4 Partial capture
09-13 14:10 40m -18 / -14 9A4AA -8 / -13 3 Partial capture
09-13 13:43 40m - / - HG8LXL -6 / - 4 Partial capture
09-12 17:24 60m -16 / -4 OE5DML -1 / +5 5 ✓ Full exchange observed
09-12 17:24 60m -15 / -14 YO8AAZ -12 / - 4 ✓ Closing observed
09-12 17:23 60m -21 / 0 ON7GB -7 / - 9 Partial capture
08-31 17:20 40m - / -1 9A5MP -18 / - 2 ✓ Closing fragment
08-25 18:26 20m - / -12 EA2WX/P -8 / - 3 Partial capture
08-24 14:14 20m - / -16 CT3MD +4 / - 2 ✓ Closing fragment
08-23 20:01 20m - / -17 VE3ARF -14 / - 3 Partial capture
08-23 19:14 20m - / - S51BB -22 / - 2 ✓ Closing fragment
08-23 14:35 20m - / -12 EK1KE -20 / - 2 Partial capture
08-22 17:06 20m -17 / - BV2NF - / -20 2 Partial capture
08-14 20:11 40m - / -14 OK2USB -3 / - 3 Partial capture
08-08 14:57 10m - / -11 7Q6UJ -18 / - 2 Partial capture
08-08 14:54 10m - / -9 7Q6UJ -18 / - 2 Partial capture
08-08 14:33 20m - / -13 MM0TBH -14 / - 2 Partial capture
08-07 13:36 20m - / -16 EB3JT -12 / - 5 ✓ Closing fragment
08-07 13:33 20m - / - PD3LKN -21 / - 2 Partial capture
08-06 20:03 80m - / - DL6UM -12 / - 2 Partial capture
08-06 19:37 80m -17 / -12 US2YW +6 / -7 5 Partial capture
08-06 19:32 80m -12 / - Z62NS - / +6 2 Partial capture
08-05 17:04 40m - / -4 DL7ARV -17 / - 4 Partial capture
08-04 18:46 20m - / - RW6HPS -12 / - 10 Partial capture
08-04 18:46 60m - / - ON7GB +3 / - 2 Partial capture
08-04 18:44 40m - / - HA7TM -6 / - 2 Partial capture
08-04 18:43 60m - / -7 OM5JG +4 / - 2 ✓ Closing fragment
08-04 18:40 60m - / +2 DK4RH -16 / - 6 Partial capture
08-04 18:34 80m - / -14 RY6O +1 / - 9 ✓ Closing fragment
08-04 18:32 80m -10 / -21 ON5RJ -11 / -8 13 Partial capture
08-04 18:32 80m -12 / -13 DK4RH -13 / -10 5 ✓ Full exchange observed
08-04 18:31 80m -12 / -4 HA7TM +12 / - 6 Partial capture
08-03 20:11 40m - / +4 OE9DAI -13 / - 2 Partial capture
08-03 20:09 40m - / - DL7ACA -12 / - 6 Partial capture
08-03 19:10 40m - / -14 EI8GS -14 / - 2 ✓ Closing fragment
07-24 18:07 40m - / - HG8LXL -16 / - 4 Partial capture
07-24 18:05 40m - / -12 9A2L -6 / - 2 ✓ Closing fragment
07-21 19:22 80m - / - 9A4ZM +7 / - 3 Partial capture
07-21 19:21 80m - / -20 OH2BVT +1 / - 2 Partial capture
07-19 10:11 10m -20 / - RA9LL - / -17 4 Partial capture
07-18 12:27 20m - / -14 DB2VS -23 / - 3 Partial capture
07-18 12:24 20m - / -14 DB2VS -22 / - 2 Partial capture
07-18 12:24 20m - / -7 F5RRS -6 / - 4 ✓ Closing fragment
07-18 11:51 10m - / - EB3JT -4 / - 7 Partial capture
07-18 11:51 10m - / -9 PD0HLA -4 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
192630  -4 1051  S56OB 9A60CBM R-07
192700 -18 1470  S56OB EB3JT JN01
192745 -18 1470  EB3JT S56OB +04
192800 -16 1470  S56OB EB3JT R-13 (x3)
193200 -21 1534  S56OB CN8DN R-09 (x9)
80m 
UTC    dB Audio  Message
183815  +3 1288  S56OB RY6O R-14 (x2)
170100 -19 1860  CQ S56OB JN76 (x3)
193200 -12 1485  Z62NS S56OB +06 (x2)
193715  +6 1585  S56OB US2YW KN28
193730 -17 1699  US2YW S56OB -07
193745  +6 1585  S56OB US2YW R-12 (x3)
200315 -15  646  S56OB DL6UM JO60 (x2)
192845  +0 1275  EB3JT S56OB RR73
40m 
UTC    dB Audio  Message
141145  -5 1647  S56OB HG8LXL KN06
141145  -5  517  S56OB 9A4AA R-14
141215  -5 1647  S56OB HG8LXL KN06 (x3)
213500  -6 1211  S56OB M0BEW -03 (x3)
213830 -13 1212  S56OB DJ0MAB JN49 (x2)
192430 -17 1475  OK8UQ S56OB -10
192515  +9 2441  S56OB OK8UQ R-10 (x4)
20m 
UTC    dB Audio  Message
170630 -16  413  BV2NF S56OB -20
143230 -21 1554  S56OB EK1KE R-12 (x3)
191415 -22 1980  S56OB S51BB +23 (x2)
200145 -15 2445  S56OB VE3ARF -17 (x3)
141445  +2 1312  S56OB CT3MD R-16 (x2)
141715  -5 1124  S56OB DK7ZT -25
182615  -6 1675  S56OB EA2WX/P R-12 (x3)
160m 
UTC    dB Audio  Message
194715 -21 1382  SM5KNV S56OB -13
10m 
UTC    dB Audio  Message
115315  -5 2716  S56OB EB3JT JN01 (x4)
100845 -19 2020  <...> S56OB -18
101115 -20 1672  RA9LL S56OB -17 (x4)
110430 -20 1467  RA9CUU S56OB -10
111115 -24 1830  EA6YK S56OB -11
145400 -18 2228  S56OB 7Q6UJ -09 (x4)

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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