SM4LMV — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SM4LMV, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 60m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-05.
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 5 FT8 messages attributed to SM4LMV as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (100%). In this small sample, the estimated median decoder S/N was -7 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 5 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -7 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 4.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with SM4LMV in decoded directed-looking exchanges:
Most frequent locator attributed to SM4LMV
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
- JO79
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,148 km (approx.)
- Last such locator decoded
- 2026-09-05 22:24 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 UTC | Band | SM4LMV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-05 22:31 | 40m | - / +7 | IN3LHF | -3 / - | 3 | Partial capture |
| 09-05 22:30 | 40m | - / - | UR9QQ | -2 / - | 4 | Partial capture |
| 09-05 22:27 | 60m | - / - | OH3GBW | 0 / - | 2 | Partial capture |
| 09-05 22:26 | 60m | -2 / +9 | DK7ZT | -13 / -5 | 4 | ✓ Full exchange observed |
| 09-05 22:25 | 60m | -8 / - | G0AZH | -6 / -5 | 4 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 223000 -2 935 SM4LMV UR9QQ KN77 (x2) 223030 +2 626 SM4LMV F1IQH JN27 223100 -7 935 SM4LMV UR9QQ KN77 223100 -7 624 SM4LMV IN3LHF +07 223130 +1 935 SM4LMV UR9QQ KN77 223130 -3 624 SM4LMV IN3LHF +07 (x2)
UTC dB Audio Message 222445 -7 728 CQ DX SM4LMV JO79 222500 -7 580 SM4LMV G0AZH IO83 222515 -8 728 G0AZH SM4LMV -05 (x2) 222600 -5 580 SM4LMV G0AZH 73 222600 -10 1901 SM4LMV DK7ZT +09 222615 -4 728 DK7ZT SM4LMV R-05 222630 +4 2404 SM4LMV DL7GP JO52 222630 -16 1901 SM4LMV DK7ZT RR73 222645 +1 728 DK7ZT SM4LMV 73 222730 +0 490 SM4LMV OH3GBW KP21 (x2)
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