SM3LBN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: JP80

Receiver-side FT8 activity involving SM3LBN, decoded by SO8OO in southeastern Poland. 104 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-18.

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 104 FT8 messages attributed to SM3LBN as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (29%), followed by 40 m (26%) and 60 m (22%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -2 dB.

Overview

104

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

160m · 30 80m · 15 60m · 23 40m · 27 20m · 9

First attributed message: 2026-06-07
Last attributed message: 2026-09-18 20:44 UTC

Observed FT8 message patterns

Attributed sample: 104 messages
Active dates: 11 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -13 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 77.

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 SM3LBN in decoded directed-looking exchanges:

K1SFA · United States RA9YTI · Asiatic Russia RI1FJZ · Franz Josef Land YL4U · Latvia UA3POG · European Russia 9J2FI · Zambia DM5KK · Fed. Rep. of Germany ER3UA · Moldova IK4CBO · Italy DC6MY · Fed. Rep. of Germany RI1FJL · Franz Josef Land UA4FKT · European Russia

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 SM3LBN

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: JP80 · 53 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,212 km (approx.)
Last such locator decoded: 2026-09-18 20:43 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	SM3LBN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 20:45	160m	- / -19	Z31PM	-7 / -	3	Partial capture
09-18 20:43	160m	-7 / -	RA9YTI	- / -13	3	✓ Closing fragment
09-18 20:37	160m	-17 / -	R9SAP	- / -	3	Partial capture
09-18 04:48	160m	-16 / -	VP2MAA	- / -	3	Partial capture
09-18 03:01	160m	-2 / -	RI1FJZ	- / -13	2	✓ Closing fragment
09-18 02:44	160m	-1 / -	VP2MAA	- / -	6	Partial capture
09-04 02:38	80m	- / -	W9HT	-17 / -	2	Partial capture
09-04 02:37	80m	+10 / +8	UA4FKT	+4 / -	5	✓ Full exchange observed
09-04 02:35	80m	+10 / 0	DC6MY	+5 / -7	5	✓ Full exchange observed
09-04 02:34	80m	+2 / -	RI1FJL	- / -9	2	✓ Closing fragment
08-30 03:22	160m	-11 / -	PY9MP	- / -5	4	Partial capture
08-30 03:15	160m	-12 / -	PY9MP	- / -	2	Partial capture
08-30 03:14	160m	-11 / -	K1SFA	-16 / -	3	✓ Closing observed
08-30 03:12	160m	-7 / -	YL4U	+2 / -	5	✓ Full exchange observed
08-30 02:49	80m	+12 / -18	AA3B	-6 / -13	10	Partial capture
08-30 02:46	60m	-12 / -2	IK4CBO	-7 / +2	5	✓ Full exchange observed
08-30 02:41	60m	-4 / -	9J2FI	- / -17	8	✓ Closing fragment
07-31 03:07	40m	-14 / -	TJ1GD/P	- / -17	2	Partial capture
06-24 03:39	60m	-11 / -	DM5KK	-7 / -	4	✓ Closing observed
06-24 03:36	60m	-11 / -10	ER3UA	-3 / -5	7	✓ Full exchange observed
06-24 02:02	60m	-10 / -	<...>	- / -1	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
025915  +5 2312  VP2MAA SM3LBN JP80
030115  -3 2313  RI1FJZ SM3LBN R-13 (x2)
044845 -13 2210  VP2MAA SM3LBN JP80 (x3)
203730 -20 1964  R9SAP SM3LBN JP80 (x3)
204315  -9 1290  RA9YTI SM3LBN JP80 (x3)
204530 -10 2417  SM3LBN Z31PM -19 (x3)

80m

UTC    dB Audio  Message
025330 +14 1012  AA3B SM3LBN R-15
023445  +2  932  RI1FJL SM3LBN -09 (x2)
023530  +4  390  SM3LBN DC6MY JN58
023545 +13  932  DC6MY SM3LBN -07
023600  +5  390  SM3LBN DC6MY R+00
023615  +8  932  DC6MY SM3LBN RR73
023630  +6  390  SM3LBN DC6MY 73
023700  +3  934  SM3LBN UA4FKT LO23
023715 +11  932  UA4FKT SM3LBN +12
023730  +1  934  SM3LBN UA4FKT R+08
023745  +9  933  UA4FKT SM3LBN RR73
023800  +7  934  SM3LBN UA4FKT 73
023830 -12 1001  SM3LBN W9HT FN54 (x2)

60m

UTC    dB Audio  Message
023900 -10 2620  9J2FI SM3LBN JP80 (x9)
024645  -6 1929  SM3LBN IK4CBO JN54
024700 -15 2113  IK4CBO SM3LBN +02
024715  -5 1929  SM3LBN IK4CBO R-02
024730  -9 2112  IK4CBO SM3LBN RR73
024745 -11 1929  SM3LBN IK4CBO 73
024815  -8 2489  SM3LBN F5MYK IN97

40m

UTC    dB Audio  Message
030730 -21 1543  SM3LBN UA3POG 73
030745 -12  980  TJ1GD/P SM3LBN JP80 (x2)
040415  -1  814  RI1FJL SM3LBN JP80

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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