SM3MLX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: JP82

Receiver-side FT8 activity involving SM3MLX, decoded by SO8OO in southeastern Poland. 573 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-17.

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 573 FT8 messages attributed to SM3MLX as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (64%), followed by 40 m (18%) and 80 m (18%). Most decodes (76%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

573
Messages attributed
15
UTC dates decoded
74
Active 15-min windows
-12 dB
Estimated median S/N

Bands

80m · 103 40m · 106 20m · 364
First attributed message: 2026-06-09
Last attributed message: 2026-09-17 21:13 UTC

Observed FT8 message patterns

Attributed sample
573 messages
Active dates
15 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-20 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 195, moderate (-15 to -9 dB) 155, strong (≥ -8 dB) 223.

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 SM3MLX 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 SM3MLX

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
JP82 · 393 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,427 km (approx.)
Last such locator decoded
2026-09-17 21:13 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 UTCBandSM3MLX S/NCounterpartCounterpart S/NMsgsCapture
09-19 05:34 40m - / -12 SN1A -1 / - 5 ✓ Closing fragment
09-17 21:02 80m -12 / -21 DK9CK -10 / - 6 ✓ Closing observed
09-17 20:58 80m - / - R3PLN -8 / - 2 Partial capture
09-17 20:54 80m -7 / -7 DK9MLA +7 / - 5 ✓ Closing observed
09-17 20:50 80m -8 / -9 G0OXO -19 / -12 2 Partial capture
09-17 20:48 80m -12 / -10 SP7AAO +14 / - 5 ✓ Closing observed
09-17 20:46 80m -4 / -12 PA3FPQ +5 / - 4 ✓ Closing observed
09-17 20:37 80m -20 / -13 G8OO -20 / -11 6 ✓ Full exchange observed
09-17 20:35 80m -15 / -13 SP7THE +12 / - 5 ✓ Closing observed
09-17 20:33 80m -12 / - ON4MAP -22 / -25 4 ✓ Closing observed
09-17 20:32 80m - / -17 SP7AAO +7 / - 4 Partial capture
09-17 20:31 80m - / - G8OO -15 / - 6 Partial capture
09-17 20:29 80m -8 / - DL6AZ -8 / -16 7 ✓ Closing observed
09-17 20:29 80m - / - RT6Z +15 / - 2 Partial capture
09-17 20:27 80m - / - DL9PN -16 / - 3 Partial capture
09-17 20:26 80m - / - RA3PGR -6 / - 2 Partial capture
09-17 20:25 80m -12 / -10 SP5EBH +6 / -13 11 ✓ Full exchange observed
09-17 20:20 80m - / -10 F1PBZ +2 / - 3 ✓ Closing fragment
09-17 20:20 80m -10 / -20 PH7GD -13 / -22 10 ✓ Full exchange observed
09-17 20:16 80m - / - OZ/DG4BRT -16 / - 2 Partial capture
09-17 20:13 80m -17 / -19 SP5IDR +9 / - 10 ✓ Closing observed
09-17 20:13 80m - / - SP5EBH +6 / - 5 Partial capture
09-17 20:09 80m - / - SP5IDR +8 / - 2 Partial capture
09-17 20:09 80m -12 / - SA6LDQ -12 / - 4 ✓ Closing observed
09-17 20:06 80m - / -9 DO1KF -8 / - 3 Partial capture
09-17 20:02 80m - / -23 DO5WG -14 / - 5 ✓ Closing fragment
09-17 19:50 80m - / - DF7NO 0 / - 10 Partial capture
09-17 19:50 80m -12 / - M8FQT -23 / -20 4 Partial capture
09-17 19:40 80m - / - PA0RDT -18 / - 2 ✓ Closing fragment
09-17 19:36 80m - / - DF7NO 0 / - 2 Partial capture
09-17 19:36 80m -5 / +3 OZ1PFH 0 / - 4 ✓ Closing observed
09-17 19:30 80m -10 / -7 DA6MS -3 / -8 4 ✓ Full exchange observed
09-17 19:27 80m -10 / - ON5RZ - / -12 3 ✓ Closing fragment
09-17 19:26 80m - / - OK1DBE 0 / - 2 Partial capture
09-17 19:16 80m -14 / - OH3CD - / - 2 ✓ Closing fragment
09-17 19:12 80m -11 / -11 DM2GM -4 / -18 6 ✓ Full exchange observed
09-17 19:09 80m - / - SQ9PKM +8 / - 8 Partial capture
09-17 19:07 80m - / +1 DL4BCY +5 / - 3 ✓ Closing fragment
09-17 19:01 80m -5 / -4 RW1AI -7 / +2 4 ✓ Full exchange observed
09-17 18:58 80m - / - IZ3QEU -2 / - 3 Partial capture
09-17 18:56 80m - / - DL3JHK -12 / - 2 ✓ Closing fragment
09-17 18:56 80m -7 / - DO8JB -9 / - 10 ✓ Closing observed
09-17 18:53 80m - / +3 GM4ABX -16 / - 2 ✓ Closing fragment
09-17 18:47 80m -10 / -10 DL4DP -16 / - 4 ✓ Closing observed
09-17 18:45 80m - / - IZ3QEU -1 / - 2 Partial capture
09-17 18:42 80m -14 / -5 DK6QO -1 / -10 4 ✓ Full exchange observed
09-17 18:41 80m - / - IZ3QEU 0 / - 2 Partial capture
09-17 18:40 80m - / - YL3GED +5 / - 4 Partial capture
09-17 18:24 40m - / -14 9A6NTK +4 / - 4 Partial capture
09-17 18:23 40m - / -21 UR4QWW -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
182400  -5 2478  SM3MLX UR4QWW 73
182400  +7 2077  SM3MLX 9A6NTK JN85 (x4)
183130  -1  668  SM3MLX DK9EU JN94
183515 -16  828  CQ SM3MLX JP82
052700 -10 1040  SM3MLX US5RK KO61
052800 -10 1041  SM3MLX IZ2BKS JN55 (x2)
053430  -4 1137  SM3MLX SN1A JO73 (x5)
80m 
UTC    dB Audio  Message
205545  -7 1241  DK9MLA SM3MLX 73
205830  -7 2188  SM3MLX R3PLN KO83 (x2)
205945  -8 1241  GM4YTD SM3MLX 73
210230  -1 2133  SM3MLX DK9CK JO30 (x3)
210415 -12 1241  DK9CK SM3MLX RR73
210430 -17 2132  SM3MLX DK9CK R-21 (x2)
210715 -16 1241  CQ SM3MLX JP82 (x2)
210900  -6 2043  SM3MLX RA3PGR KO84
211115 -23 1241  CQ SM3MLX JP82                        a1 (x2)
20m 
UTC    dB Audio  Message
085845 -19 1714  DL9KM SM3MLX 73
085915 -14 1714  CQ SM3MLX JP82 (x4)
091100 -12  616  SM3MLX DF5DY 73
091545 -24 1715  CQ SM3MLX JP82 (x2)
092245 -24 1715  PD1AJJ SM3MLX RR73
092345 -20 1715  CQ SM3MLX JP82
104430 -11 2090  SM3MLX YO6RK -10
113430 -12 1214  SM3MLX RW6HPI LN25
204530 -18 2120  SM3MLX IU4PPL JN54 (x3)
10m 
UTC    dB Audio  Message
171430 +10 2691  SM3MLX F1PBZ -10
173400 -11 2308  SM3MLX DO1NJN JO30 (x2)
175430  -8 2430  SM3MLX IW5DNZ JN53
075600 -22 1307  SM3MLX DN9DSP JO31
075630  -6  994  SM3MLX ON4AZR R-14
075700  -9  994  SM3MLX TKS 73
162945  -8 1836  SM3MLX RN6MA -11 (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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