SM5MEK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: JO89

Receiver-side FT8 activity involving SM5MEK, decoded by SO8OO in southeastern Poland. 257 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 48 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-12.

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 257 FT8 messages attributed to SM5MEK as the transmitting token by decoded message structure across 48 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (62%), followed by 10 m (24%) and 80 m (7%). Most decodes (83%) fell within the six-hour window 09:00-15:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

257
Messages attributed
48
UTC dates decoded
73
Active 15-min windows
-12 dB
Estimated median S/N

Bands

160m · 2 80m · 17 60m · 11 40m · 7 20m · 159 10m · 61
First attributed message: 2026-06-06
Last attributed message: 2026-09-12 18:50 UTC

Observed FT8 message patterns

Attributed sample
257 messages
Active dates
48 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-22 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 86, moderate (-15 to -9 dB) 98, strong (≥ -8 dB) 73.

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 SM5MEK 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 SM5MEK

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
JO89 · 106 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,106 km (approx.)
Last such locator decoded
2026-09-12 18:50 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 UTCBandSM5MEK S/NCounterpartCounterpart S/NMsgsCapture
09-12 18:47 40m - / - DL9KM -9 / - 2 Partial capture
09-12 18:46 40m -10 / -12 9A5E +5 / - 3 ✓ Closing observed
09-12 18:40 80m - / - SQ1KD +2 / - 3 Partial capture
09-12 18:30 80m -22 / - UY5AX - / - 2 Partial capture
09-12 18:29 60m - / - PA3GQM -6 / - 2 Partial capture
09-12 18:26 60m -18 / - DL5DQZ - / - 4 Partial capture
09-12 18:25 60m -20 / -18 YO4NT +6 / -3 4 ✓ Full exchange observed
09-12 18:22 60m -18 / -7 OH7VV -14 / - 3 ✓ Closing observed
09-12 18:20 60m - / -11 LB6OJ -16 / - 2 ✓ Closing fragment
09-12 18:18 60m -17 / - LA1PHA -15 / - 2 ✓ Closing observed
09-12 18:16 60m -14 / -3 LY8O -6 / - 4 ✓ Closing observed
09-11 12:48 40m -20 / - PA7TA/QRP - / - 2 Partial capture
09-08 11:44 40m - / -6 LX1FP -12 / - 2 ✓ Closing fragment
09-08 11:17 40m - / -7 SM7/DL5BTE -9 / - 2 Partial capture
09-03 07:31 40m - / - OE2VDL -12 / - 4 Partial capture
09-03 07:04 40m - / -14 PI4DX 0 / - 2 ✓ Closing fragment
09-03 07:00 40m - / -6 DK5UR 0 / - 3 ✓ Closing fragment
09-03 06:59 40m -13 / -4 HG0NPJ +4 / -5 3 ✓ Full exchange observed
08-31 14:05 20m - / -11 M9UTD +2 / - 2 ✓ Closing fragment
08-30 11:05 40m - / - YL3GAO -22 / - 2 ✓ Closing fragment
08-30 10:57 40m - / -3 DK2M +2 / - 2 ✓ Closing fragment
08-29 13:05 20m -7 / -14 EB3JT +3 / - 4 ✓ Closing observed
08-29 13:03 20m -10 / - RI1FJL - / - 2 ✓ Closing fragment
08-27 12:57 40m - / -9 SQ7TX -17 / - 2 ✓ Closing fragment
08-27 12:42 20m -8 / -12 RW4CB +12 / -5 4 ✓ Full exchange observed
08-27 12:32 20m -3 / - SP7FID - / -2 3 ✓ Closing fragment
08-27 12:30 20m -7 / - ON4CJU -10 / +9 4 ✓ Full exchange observed
08-27 12:28 20m - / -13 UT5MD +7 / - 2 Partial capture
08-24 14:18 20m - / -3 F1UNR -14 / - 2 Partial capture
08-24 14:12 20m -6 / -16 JN1ILK +4 / +1 3 ✓ Full exchange observed
08-24 13:31 10m - / +3 G8VHI -20 / - 2 ✓ Closing fragment
08-22 09:37 10m - / -5 IN3XUG -6 / - 3 ✓ Closing fragment
08-22 09:34 10m - / - PD5MVH -17 / - 2 ✓ Closing fragment
08-22 09:31 10m - / -3 DA2DA -8 / - 2 ✓ Closing fragment
08-22 09:30 10m - / -5 DF3RD -12 / - 2 ✓ Closing fragment
08-21 09:08 40m - / -19 PD0HLA -6 / - 2 ✓ Closing fragment
08-21 08:48 40m - / - DL6UM -12 / - 4 ✓ Closing fragment
08-21 08:48 40m - / -5 SP2WZ -15 / - 3 ✓ Closing fragment
08-21 08:42 40m - / - DB3MAX -10 / - 2 ✓ Closing fragment
08-21 08:25 40m - / -15 ON4AOI -5 / - 2 ✓ Closing fragment
08-21 08:16 40m - / -14 ON4AOI -4 / - 3 ✓ Closing fragment
08-19 09:29 20m -20 / - PD1RGW -10 / -4 3 ✓ Closing observed
08-18 13:54 10m - / -7 DD3HB -4 / - 2 ✓ Closing fragment
08-16 13:25 20m - / -1 IU1DXU -21 / - 2 Partial capture
08-15 05:59 20m -11 / -11 LZ2KV +1 / - 5 ✓ Full exchange observed
08-15 05:09 20m - / +3 5B4AMX -4 / - 2 ✓ Closing fragment
08-14 06:29 60m - / -22 DK7UY -14 / - 2 ✓ Closing fragment
08-14 06:15 20m - / 0 LZ2KV +10 / - 2 Partial capture
08-13 10:03 10m - / 0 DL1NCH -18 / - 2 ✓ Closing fragment
08-13 09:46 10m - / - DO1ID +1 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
111530  +1 1880  SM5MEK SQ100PKP -02
111600  +2 1880  SM5MEK RR73; SP3Q <...> -26
111730 -11 2388  SM5MEK SM7/DL5BTE -07 (x2)
114430 -13 2291  SM5MEK LX1FP -06 (x2)
093145 -22 2039  SM5MEK PI4TX JO22
124845 -20 1786  PA7TA/QRP SM5MEK JO89 (x2)
184645  +8 2170  SM5MEK 9A5E -12 (x2)
184730 -10 2170  9A5E SM5MEK 73
184745 -10 1399  SM5MEK DL9KM JN68 (x2)
185030 -12 1037  GW5VOG SM5MEK JO89
80m 
UTC    dB Audio  Message
220630  -6 2014  SM5MEK DL5DQZ -21
220645 -24 2013  DL5DQZ SM5MEK R-06
220700  -2 2014  SM5MEK DL5DQZ RR73
220715 -24 2014  DL5DQZ SM5MEK 73
220845 -15 2013  UA4FKT SM5MEK RR73
183030 -23  953  UY5AX SM5MEK JO89 (x2)
183230 -13 1905  SM5RYW SM5MEK JO89
184015  -1 2386  SM5MEK SQ1KD JO73 (x3)
184130 -19  808  DO5HOK SM5MEK JO89
60m 
UTC    dB Audio  Message
182045 -15 2009  SM5MEK LB6OJ RR73
182130 -22 1922  DG0OFT SM5MEK JO89
182230 -18 2168  OH7VV SM5MEK JO89
182245 -14 2168  SM5MEK OH7VV -07 (x2)
182500 +11 1819  SM5MEK YO4NT -18
182515 -21 1819  YO4NT SM5MEK R-03
182530  +2 1819  SM5MEK YO4NT RR73
182545 -19 1819  YO4NT SM5MEK 73
182615 -18 1664  DL5DQZ SM5MEK JO89 (x4)
182900  -5  669  SM5MEK PA3GQM JO22 (x2)
20m 
UTC    dB Audio  Message
123630 -15 1369  PD5DSL SM5MEK JO89
124200 +14 1758  SM5MEK RW4CB -12
124215  -9 1758  RW4CB SM5MEK R-05
124230  +9 1758  SM5MEK RW4CB RR73
124245  -6 1758  RW4CB SM5MEK 73
130315 -15  355  RI1FJL SM5MEK JO89 (x2)
130530  +4  416  SM5MEK EB3JT JN01 (x3)
130645  -7  416  EB3JT SM5MEK RR73
130745 -10 1106  OK2AA SM5MEK R-04
091030  +8 2883  SM5MEK F4IOH/P RR73
140545  +4 1838  SM5MEK M9UTD -11 (x2)
10m 
UTC    dB Audio  Message
135430  -3 2565  SM5MEK DD3HB -07 (x2)
140500 -16 2089  SM5MEK DO1DMR RR73
093015 -11  256  SM5MEK DF3RD -05 (x2)
093145  -8 1802  SM5MEK DA2DA -03 (x2)
093415 -18 2202  SM5MEK PD5MVH RR73 (x2)
093700  -6 1624  SM5MEK IN3XUG -05 (x3)
133130 -19 1993  SM5MEK G8VHI +03 (x2)
103200 -14 1163  SM5MEK CU2AP RR73

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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