SM/DG5LM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden

Receiver-side FT8 activity involving SM/DG5LM, decoded by SO8OO in southeastern Poland. 16 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-19 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 16 FT8 messages attributed to SM/DG5LM as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 16

First attributed message: 2026-09-19
Last attributed message: 2026-09-20 06:53 UTC

Observed FT8 message patterns

Attributed sample: 16 messages
Active dates: 2 UTC dates
Estimated median S/N: -13 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 1.

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 SM/DG5LM in decoded directed-looking exchanges:

SP90K · Poland

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	SM/DG5LM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 07:47	40m	- / -16	R2FBW	-14 / -	2	Partial capture
09-20 07:40	40m	- / -10	DL2LRT	0 / -	2	Partial capture
09-20 06:52	40m	-14 / -	<...>	- / -	2	Partial capture
09-20 06:50	40m	-14 / -	N1IWP	- / -	2	Partial capture
09-20 06:47	40m	-13 / -	<...>	-23 / -	2	✓ Closing fragment
09-20 06:42	40m	-14 / -	EB3JT	- / -10	3	Partial capture
09-20 06:41	40m	- / -3	OH1IM	-13 / -	3	Partial capture
09-20 06:37	40m	-17 / -	<...>	-9 / -	2	✓ Closing fragment
09-20 06:36	40m	- / -11	UT4PA	-12 / -	3	Partial capture
09-20 06:10	40m	- / -	OK2OM	+5 / -	3	Partial capture
09-20 04:20	40m	- / -9	DL1SRS	-4 / -	2	Partial capture
09-19 15:25	40m	- / -4	SP9TEX	+4 / -	3	Partial capture
09-19 08:46	40m	- / -10	DK1XAM	-8 / -	2	Partial capture
09-19 08:44	40m	- / -	<...>	-8 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
064245 -15  969  SM/DG5LM OH1IM R-03
064245 -13 1317  EB3JT SM/DG5LM -10 (x2)
064715 -13 1178  <...> SM/DG5LM RR73
064745 -12 1178  EA3HMM SM/DG5LM -15
064830 -23 1814  SM/DG5LM <...> 73
065015 -14 1176  <N1IWP> SM/DG5LM (x2)
065230 -14 1176  <...> SM/DG5LM (x2)
065330 -15 1176  PD1HPB SM/DG5LM R-04
074015  +1 1321  SM/DG5LM DL2LRT JO61 (x2)
074715 -14 1319  SM/DG5LM R2FBW JO94 (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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