SM2OTU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: KP16

Receiver-side FT8 activity involving SM2OTU, decoded by SO8OO in southeastern Poland. 3,376 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 52 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-06.

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 3,376 FT8 messages attributed to SM2OTU as the transmitting token by decoded message structure across 52 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (38%), followed by 60 m (36%) and 80 m (13%). Most decodes (87%) 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 -11 dB.

Overview

3,376
Messages attributed
52
UTC dates decoded
292
Active 15-min windows
-11 dB
Estimated median S/N

Bands

160m · 417 80m · 425 60m · 1,228 40m · 1,276 20m · 30
First attributed message: 2026-06-13
Last attributed message: 2026-10-06 19:05 UTC

Observed FT8 message patterns

Attributed sample
3,376 messages
Active dates
52 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-17 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 578, moderate (-15 to -9 dB) 1,741, strong (≥ -8 dB) 1,057.

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 SM2OTU 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 SM2OTU

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
KP16 · 2,607 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,843 km (approx.)
Last such locator decoded
2026-10-06 19:05 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 UTCBandSM2OTU S/NCounterpartCounterpart S/NMsgsCapture
10-06 18:56 160m -22 / - EW4M - / - 2 Partial capture
10-06 14:09 40m - / -20 9A7BB 0 / - 3 ✓ Closing fragment
10-05 16:56 80m - / -15 SP7IIX +7 / - 3 ✓ Closing fragment
10-05 16:51 80m - / - LY3GY -5 / - 3 Partial capture
10-05 16:12 80m - / -18 RN3AOE 0 / - 3 ✓ Closing fragment
10-05 16:09 80m - / -17 UA3FH -9 / - 3 ✓ Closing fragment
10-05 16:03 80m - / -15 SQ7OBH +8 / - 5 ✓ Closing fragment
10-05 15:46 80m - / -20 RC6OZ -15 / - 3 ✓ Closing fragment
10-04 17:47 160m -20 / - SM0EUI -2 / -16 3 Partial capture
10-03 17:04 10m - / -1 EB1LA +1 / - 3 ✓ Closing fragment
10-02 18:01 80m -20 / -11 DO6WA -5 / - 4 ✓ Closing observed
10-02 17:46 80m - / -17 R3ZMM +2 / - 3 ✓ Closing fragment
10-02 17:37 80m -24 / - SP2SGK +1 / - 2 ✓ Closing observed
10-02 17:32 80m -22 / -23 DO4DXA +6 / -5 7 ✓ Full exchange observed
10-02 17:28 80m -20 / -16 9A6NTK +8 / -8 4 ✓ Full exchange observed
10-02 17:26 80m -24 / -20 RT3K -17 / -8 5 ✓ Full exchange observed
10-02 17:18 80m - / -16 R2SDZ +5 / - 3 ✓ Closing fragment
10-02 17:16 80m - / -15 OE2GEN +10 / - 2 ✓ Closing fragment
10-02 17:14 80m - / -14 RU4SS -11 / - 3 ✓ Closing fragment
10-02 17:09 80m - / -5 OZ1NIB -8 / - 3 ✓ Closing fragment
10-02 17:06 80m -24 / -8 DG6IDA -7 / -12 3 ✓ Full exchange observed
10-02 16:57 80m -24 / -5 OZ1HPS -8 / -4 4 ✓ Full exchange observed
10-02 16:38 80m - / +3 OH3GBW -5 / - 3 Partial capture
10-02 16:31 80m - / +10 OH5KNL +3 / - 3 ✓ Closing fragment
10-02 16:19 80m - / +4 OH7FAE -10 / - 3 ✓ Closing fragment
10-02 16:08 160m - / -20 RA1N -14 / - 3 ✓ Closing fragment
10-02 15:59 80m - / -17 RA3TK -13 / - 2 ✓ Closing fragment
10-01 22:27 80m - / -18 DG5PW -5 / - 3 ✓ Closing fragment
10-01 21:36 80m - / -18 DO1OAS -5 / - 9 Partial capture
10-01 21:28 80m - / -6 EW8DU -7 / - 3 ✓ Closing fragment
10-01 21:19 80m -24 / - DG4BRT 0 / - 3 ✓ Closing observed
10-01 21:18 80m - / -9 SN4K +8 / - 3 ✓ Closing fragment
10-01 21:15 80m -20 / - 2W0YLE - / -15 2 Partial capture
10-01 21:11 80m -20 / - SM2DCU - / -9 3 Partial capture
10-01 21:03 80m - / -18 F4JYH -1 / - 3 ✓ Closing fragment
10-01 20:41 80m -24 / - UA9SY - / - 2 ✓ Closing fragment
10-01 20:35 80m - / -14 SP6U +5 / - 3 ✓ Closing fragment
10-01 05:22 80m - / - SM5VSS -5 / - 6 Partial capture
09-30 21:20 160m -12 / -16 IZ0BVU +4 / -9 4 ✓ Full exchange observed
09-30 21:16 160m -8 / - DF5AH -10 / +4 4 ✓ Closing observed
09-30 05:44 80m - / -16 OH1CMV -18 / - 2 Partial capture
09-29 19:23 160m -10 / -17 DO9AO +4 / +5 3 ✓ Full exchange observed
09-29 19:23 160m -18 / -4 SM5ACQ -15 / +6 5 ✓ Full exchange observed
09-29 19:21 160m -20 / -25 DL4BBY -5 / -6 5 ✓ Full exchange observed
09-29 19:18 160m -15 / - SP4LIN +5 / - 2 ✓ Closing observed
09-29 18:59 160m -16 / - OM3TWM +10 / +8 4 ✓ Closing observed
09-29 18:49 160m -18 / -5 SP9WUJ +1 / - 3 ✓ Closing observed
09-29 18:43 160m -15 / -25 IZ7NLJ -3 / -4 5 ✓ Full exchange observed
09-29 18:41 160m -13 / -24 SV8KOU -7 / +3 6 ✓ Full exchange observed
09-29 18:36 160m -20 / -13 OE3KJO -1 / -23 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
191030 -12 2123  CQ SM2OTU KP16 (x4)
174700 -19 2374  SM0EUI SM2OTU -16
174715  -2  858  SM2OTU SM0EUI JO99
174830 -21 2374  SM0EUI SM2OTU -12
175000 -22 2374  CQ SM2OTU KP16 (x2)
200230 -11 1080  SM2OTU SM0EUI JO99
185645 -23 2190  EW4M SM2OTU KP16 (x2)
185945 -24 2191  CQ SM2OTU KP16 (x3)
40m 
UTC    dB Audio  Message
212345  -6 1336  SM2OTU IU3WZJ RR73 (x2)
212430 -10 2631  IU3WZJ SM2OTU R+08
212445  -4 1336  SM2OTU IU3WZJ RR73
212630 -11 2630  CQ SM2OTU KP16                        a1 (x2)
212730 -13 2630  TA3TCW SM2OTU -16
213215  -5 2631  SM2OTU RZ6AKF RR73
213245 -16 2626  SM2OTU IZ2CDP JN45
213945  -9  740  SM2OTU GX7RAF/P R-15 (x2)
163445 -13 2220  SM2OTU E75BO JN93
140945  +2  588  SM2OTU 9A7BB JN75 (x3)
80m 
UTC    dB Audio  Message
161015  -8 2128  SM2OTU UA3FH R-17 (x2)
161245  +2 2184  SM2OTU RN3AOE KO95 (x3)
161430 -22 2184  CQ SM2OTU KP16 (x2)
165115  -2 2184  SM2OTU LY3GY KO24 (x3)
165615  +6 1503  SM2OTU SP7IIX JO92 (x3)
170115  +0 2291  SM2OTU OZ9FF RR73
173030 -24 2184  CQ SM2OTU KP16
10m 
UTC    dB Audio  Message
093115  -6 2689  SM2OTU F1PBZ RR73
093845  -5 2728  SM2OTU PD4WAC R-23
170415  -1 1414  SM2OTU EB1LA IN73 (x3)
60m 
UTC    dB Audio  Message
185915  -2 2078  SM2OTU DC5CH 73
185930 -15 1728  CQ SM2OTU KP16 (x14)
20m 
UTC    dB Audio  Message
004530  -2 2737  SM2OTU WA0DYJ FM18 (x4)
005900 -17 1242  SM2OTU K1LDO FM14 (x3)
015100 -18 1408  SM2OTU VA2KS FN35
020800  +1 2792  SM2OTU K9KU EN65 (x3)
032030  -5 2794  SM2OTU EX8ABQ 73
033030  -9  926  SM2OTU UN2PL MO60 (x3)

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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