S56MLZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovenia Most frequent locator attributed to this token: JN76

Receiver-side FT8 activity involving S56MLZ, decoded by SO8OO in southeastern Poland. 382 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-30.

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 382 FT8 messages attributed to S56MLZ as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (36%), followed by 80 m (33%) and 60 m (17%). Most decodes (97%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -6 dB.

Overview

382

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 125 60m · 66 40m · 137 20m · 42 10m · 12

First attributed message: 2026-06-07
Last attributed message: 2026-08-30 21:04 UTC

Observed FT8 message patterns

Attributed sample: 382 messages
Active dates: 9 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -13 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 91, strong (≥ -8 dB) 269.

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 S56MLZ in decoded directed-looking exchanges:

EA4T · Spain ×2 ON3EBR · Belgium ×2 F1PBZ · France ×2 DL7EDU · Fed. Rep. of Germany ×2 EA3RT · Spain ×2 DK5UR · Fed. Rep. of Germany HA7TM · Hungary M3WHB · England F4HSB · France M6WRB · England Z61DX · Republic of Kosovo ON5LW · Belgium

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 S56MLZ

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: JN76 · 184 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 631 km (approx.)
Last such locator decoded: 2026-08-30 21:04 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	S56MLZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 21:20	160m	- / -13	OE6AXG	+6 / -	3	✓ Closing fragment
08-30 21:12	80m	- / -	ON6CQ	-14 / -	2	Partial capture
08-30 21:02	80m	-1 / -2	DL1PAN	-1 / -	4	✓ Closing observed
08-30 20:59	80m	-4 / -15	DL3HN	+1 / -2	5	✓ Full exchange observed
08-30 20:57	80m	- / -	9A0POTA	+4 / -	2	Partial capture
08-30 20:57	80m	- / -19	DL1UDO	+5 / -	3	✓ Closing fragment
08-30 20:55	80m	-6 / -	EA3RT	- / -2	2	✓ Closing fragment
08-30 20:54	80m	- / -10	SP9BEB	+13 / -	3	✓ Closing fragment
08-30 20:50	80m	-16 / -19	UG4L	+4 / +1	5	✓ Full exchange observed
08-30 20:50	80m	-17 / -11	OK1DLA	+8 / -	5	✓ Closing observed
08-30 20:48	80m	-8 / -7	DK9JC	-7 / -8	5	✓ Full exchange observed
08-30 20:46	80m	-11 / -16	G6LEE	-12 / -11	4	✓ Full exchange observed
08-30 20:44	80m	-6 / -3	F5MXH	+2 / -	3	✓ Closing observed
08-30 20:43	80m	- / -11	F5NAA	-1 / -	2	Partial capture
08-30 20:36	80m	-11 / -12	ON3EBR	-8 / -11	10	✓ Full exchange observed
08-30 20:33	80m	- / -14	F1PBZ	+9 / -	4	Partial capture
08-30 20:30	80m	-22 / -10	DK3ME	-4 / -6	4	✓ Full exchange observed
08-30 20:29	80m	-20 / -15	DO1DX	-1 / 0	5	✓ Full exchange observed
08-30 20:26	80m	-14 / -13	II3DRC	-9 / -	3	✓ Closing observed
08-30 20:21	80m	-8 / -	DA6IT	-7 / 0	7	✓ Closing observed
08-30 20:21	80m	0 / -	2W0YOX	+3 / -4	5	Partial capture
08-30 20:19	80m	-8 / -	DK8CX	+6 / +1	3	✓ Closing observed
08-30 20:14	80m	- / -	DL3IKE	-5 / -	3	Partial capture
08-30 20:14	80m	- / -11	DL3MIB	+6 / -	4	✓ Closing fragment
08-30 20:08	60m	-2 / -	F4CYH	-12 / -3	4	✓ Closing observed
08-30 20:06	60m	-3 / +1	DL7MDX	+3 / -	4	✓ Closing observed
08-30 20:03	60m	-6 / -5	IK4CBO	-14 / -	5	✓ Full exchange observed
08-30 20:01	60m	-1 / -14	SP5JMA	+11 / -	4	✓ Closing observed
08-30 20:00	60m	-3 / -	IT9IVN	+2 / -	4	✓ Closing observed
08-30 19:59	60m	-4 / -	EA3RT	- / -3	2	✓ Closing fragment
08-30 19:58	60m	-4 / -11	PA1POS	-9 / +9	5	✓ Full exchange observed
08-30 19:57	60m	-6 / -3	9A9N	0 / -	5	✓ Full exchange observed
08-30 19:53	60m	-1 / -	DG3IS	- / -17	5	✓ Closing fragment
08-30 19:49	40m	- / -	YO3FVR	+2 / -	3	Partial capture
08-30 19:49	40m	+1 / -	TA1GRH	- / -	2	Partial capture
08-30 19:47	40m	-2 / -3	RM6OS	+13 / -	5	✓ Full exchange observed
08-30 19:44	40m	-2 / -19	EA7GRB	-15 / -5	4	✓ Full exchange observed
08-30 19:43	40m	-1 / -	YO3FVR	-11 / -8	2	Partial capture
08-30 19:41	40m	+2 / +6	OM3PR	+7 / +3	5	✓ Full exchange observed
08-30 19:39	40m	-1 / -12	PA2RO	+9 / -4	3	✓ Full exchange observed
08-30 19:38	40m	+1 / -9	DL5KIM	0 / -2	4	✓ Full exchange observed
08-30 19:38	40m	- / -	HA9OA	+4 / -	22	Partial capture
08-30 19:36	40m	+1 / -	EA1DMP	-7 / -5	2	✓ Closing observed
08-30 19:00	20m	- / -2	G4BWQ	+6 / -	3	✓ Closing fragment
08-30 18:59	20m	- / +7	F4HSB	-9 / -	3	✓ Closing fragment
08-30 18:57	20m	- / +5	R7OV	-11 / -	3	✓ Closing fragment
08-30 18:53	20m	- / +1	PD0PWH	-1 / -	3	✓ Closing fragment
08-30 18:47	20m	- / -10	DL2BS	-10 / -	2	Partial capture
08-30 18:42	20m	- / -	ON5AI	-6 / -	11	Partial capture
08-23 14:18	20m	-8 / -	UR5TOB	- / -16	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
212030  +7 1231  S56MLZ OE6AXG JN77 (x3)

80m

UTC    dB Audio  Message
205945  +4  403  S56MLZ DL3HN R-15
210000  -8  605  DL3HN S56MLZ RR73
210015  +2  403  S56MLZ DL3HN 73
210030 -13  605  CQ POTA S56MLZ JN76 (x2)
210130  -3  605  IU1DXU S56MLZ JN76
210215  -5 2459  S56MLZ DL1PAN R-02
210230  -1  605  DL1PAN S56MLZ RR73
210245  +1 2459  S56MLZ DL1PAN 73
210300  -4  604  CQ POTA S56MLZ JN76
210315  +1 2459  S56MLZ DL1PAN JN58
210330  -5  604  CQ POTA S56MLZ JN76 (x2)
211245 -15 1558  S56MLZ ON6CQ JO11 (x2)

60m

UTC    dB Audio  Message
200345 -11  439  IK4CBO S56MLZ RR73
200400 -12 2098  S56MLZ IK4CBO 73
200415  -9  440  CQ POTA S56MLZ JN76 (x2)
200600  -6  440  DL7MDX S56MLZ JN76
200615  +3  928  S56MLZ DL7MDX +01 (x2)
200700  +0  440  DL7MDX S56MLZ 73
200730  -5  440  CQ POTA S56MLZ JN76
200800  -3  440  F4CYH S56MLZ JN76 (x2)
200845 -12  813  S56MLZ F4CYH RR73
200900  -5  440  F4CYH S56MLZ 73
200930  -5  440  CQ POTA S56MLZ JN76
201000  -4  440  IZ5OPW S56MLZ JN76

40m

UTC    dB Audio  Message
194730 +13 2324  S56MLZ RM6OS -03
194745  -1  452  RM6OS S56MLZ R+17
194800  +2 2989  S56MLZ HA9OA KN08
194800 +13 2324  S56MLZ RM6OS RR73
194815  -7  452  RM6OS S56MLZ 73
194830  +2 2989  S56MLZ HA9OA KN08
194845  -1  452  CQ POTA S56MLZ JN76
194900  +2 2988  S56MLZ HA9OA KN08
194915  +1  452  TA1GRH S56MLZ JN76
194930  +4 1014  S56MLZ YO3FVR KN34
194945  +1  452  TA1GRH S56MLZ JN76
195000  +0 1015  S56MLZ YO3FVR KN34
195030 -10 2137  CQ POTA S56MLZ JN76
195100  +1 1016  S56MLZ YO3FVR KN34
195100  -4 2137  CQ POTA S56MLZ JN76

20m

UTC    dB Audio  Message
184730 -13  628  S56MLZ DL2BS JO32
184730  -8 1022  S56MLZ ON5AI JO21
184800  -6  629  S56MLZ DL2BS R-10
185345  -4 2425  S56MLZ PD0PWH JO21 (x3)
185715  -8 2427  S56MLZ R7OV KN87 (x3)
185915  -7 1815  S56MLZ F4HSB JN37 (x3)
190045  +7 2425  S56MLZ G4BWQ IO90 (x3)

10m

UTC    dB Audio  Message
195800  -4  374  SP7MKG S56MLZ JN76 (x3)
195915  -1 1484  S56MLZ LZ1ZF KN22
195930  -8  373  LZ1ZF S56MLZ +20
195945  +2 1483  S56MLZ LZ1ZF R-02
200200  -2  374  M0VGX S56MLZ 73
200230  -7  374  DJ0MAB S56MLZ +03
200600  -4  505  S56MLZ EA1AA -06 (x2)
200730  -4  433  S56MLZ PA1AZ JO33 (x2)
191430 -14  894  S56MLZ IK8PLJ R-10
182530  +0 2635  S56MLZ F1PBZ -06 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee