SP5MXW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO02

Receiver-side FT8 activity involving SP5MXW, decoded by SO8OO in southeastern Poland. 88 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-01.

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 88 FT8 messages attributed to SP5MXW as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 80 m (13%) and 40 m (8%). Most decodes (76%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was +1 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+1 dB

Estimated median S/N

Bands

80m · 11 40m · 7 20m · 70

First attributed message: 2026-06-10
Last attributed message: 2026-09-01 21:41 UTC

Observed FT8 message patterns

Attributed sample: 88 messages
Active dates: 10 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -16 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 68.

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 SP5MXW in decoded directed-looking exchanges:

CN2DX · Morocco DB4SNK · Fed. Rep. of Germany G0RVY · England I4IOR · Italy IQ6PE · Italy IT9ECY · Sicily IU4OKS · Italy IW8PQ · Italy IZ5SIH · Italy OK1VM · Czech Republic PC2K · Netherlands 9A3TGY · Croatia

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 SP5MXW

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: KO02 · 63 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 290 km (approx.)
Last such locator decoded: 2026-08-28 18:17 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	SP5MXW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-01 16:56	40m	-3 / -	SP5MXW/P	- / -3	2	Partial capture
08-28 21:36	20m	- / -14	V31DL	-18 / -	2	✓ Closing fragment
08-28 21:13	20m	- / -7	9A3TGY	-9 / -	2	✓ Closing fragment
08-28 21:12	20m	- / +7	IW4DNI	+4 / -	2	✓ Closing fragment
08-28 18:22	20m	- / +3	MW8KUZ/QRZ	+2 / -	2	✓ Closing fragment
08-28 10:34	20m	- / -	IZ0PTY	-10 / -	2	✓ Closing fragment
08-28 10:11	20m	- / +10	IU2WKL	-10 / -	2	✓ Closing fragment
08-28 09:13	10m	- / -14	IN3IZQ	-19 / -	3	Partial capture
08-25 18:58	80m	0 / -	<...>	- / -19	4	Partial capture
08-21 17:36	20m	- / -11	IZ5LDD	+6 / -	2	✓ Closing fragment
08-21 16:45	10m	- / -	F4HSB	-24 / -	2	Partial capture
08-21 16:30	10m	- / -2	DB4SNK	-6 / -	2	✓ Closing fragment
08-07 10:36	10m	- / +3	IT9ECY	-20 / -	2	✓ Closing fragment
08-07 10:05	10m	- / -10	PC2K	-8 / -	2	✓ Closing fragment
08-07 09:10	10m	- / +1	IZ5SIH	-16 / -	2	✓ Closing fragment
07-27 22:01	40m	-15 / -	SP5MXW/P	- / -	2	Partial capture
07-27 21:56	80m	+8 / 0	SP5MXW/P	+14 / -	3	Partial capture
07-24 20:33	20m	- / -8	CX6TU	-13 / -	2	✓ Closing fragment
07-24 19:23	20m	- / 0	OM1DK	+12 / -	2	✓ Closing fragment
07-24 19:18	20m	- / +8	OK1UOZ	-6 / -	3	✓ Closing fragment
07-24 19:10	20m	+4 / -	SM/OV2E	- / +6	2	Partial capture
07-24 18:55	20m	+8 / -	9J2FI	- / -12	7	✓ Closing fragment
07-24 18:46	20m	+7 / -	C91RU	- / -	16	Partial capture
07-24 18:44	20m	+1 / -	I5MPN	- / +5	3	✓ Closing fragment
07-24 18:42	20m	0 / -	DP0POL	- / -	3	Partial capture
07-24 17:12	20m	- / -3	DL9KM	-20 / -	2	Partial capture
07-24 09:26	10m	- / -5	CN2DX	-14 / -	2	✓ Closing fragment
07-24 09:17	10m	- / +3	I4IOR	-10 / -	3	✓ Closing fragment
07-24 09:11	10m	- / -	IU4OKS	-9 / -	2	✓ Closing fragment
07-07 22:58	40m	-6 / -	<...>	- / -13	2	Partial capture
07-07 21:54	80m	- / -	UA4FKT	+15 / -	2	Partial capture
07-07 21:52	80m	-2 / +5	SN93LOT	0 / -9	4	Partial capture
06-26 11:09	20m	- / +1	IQ4JHE	-20 / -	2	✓ Closing fragment
06-26 10:48	20m	-11 / -	M7HID/P	- / +1	3	Partial capture
06-26 10:46	20m	+1 / -	IW2EPE	- / -	4	Partial capture
06-26 09:30	10m	- / 0	OK1VM	-2 / -	2	✓ Closing fragment
06-26 08:47	20m	-16 / -	<...>	-13 / -15	6	Partial capture
06-26 08:39	20m	-8 / -	<...>	- / -	2	Partial capture
06-26 07:46	10m	- / +3	IQ6PE	-2 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
091045 -13 2084  SP5MXW IZ5SIH +01 (x2)
100545  -9 1515  SP5MXW PC2K -10 (x2)
103630 -21 2127  SP5MXW IT9ECY +03 (x2)
163030  -7 2427  SP5MXW DB4SNK -02 (x2)
163330 -12  891  SP5MXW G0RVY 73
164515 -23 1876  SP5MXW F4HSB JN37 (x2)
091345 -20 1645  SP5MXW IN3IZQ -14 (x3)
081545 -16  995  SP5MXW IW8PQ 73

40m

UTC    dB Audio  Message
225815  -9  585  <...> SP5MXW KO02
225830 -13 1916  SP5MXW YR50NADIA -06
225845  -4  585  <...> SP5MXW R-13
225930 -20 2134  SP5MXW YO9PH +02
225930 -12  584  SP5MXW R1BEO KP50
220100 -15 1729  SP5MXW/P SP5MXW +14 (x2)
191530 -11 1510  SP5MXW SP5MXW/P R+00
222130  -9 1254  SP5MXW II7MGBR -09
143100  -5 1547  SP5MXW SP100PKP -11
143115  -6 1443  <...> SP5MXW R+04
165630  -6 1442  SP5MXW/P SP5MXW -03 (x2)
211545 -11 1738  SP5MXW IR7MGGC +06
214545 -24 1233  SP5MXW II7MGLE +05

80m

UTC    dB Audio  Message
215345  -2  551  SN93LOT SP5MXW R-09
215430 +15  551  SP5MXW UA4FKT LO23 (x2)
215645  +8 1213  SP5MXW/P SP5MXW +16 (x2)
215800 +14 1213  SP5MXW SP5MXW/P R+00
180500 -11 1665  SP5MXW EN35UKR -13
180515  +8 1308  SP5MXW/P SP5MXW R+02
185830  -3  478  <...> SP5MXW KO02 (x3)
190015  -3 1733  SP5MXW II7MGXX -20
190030  +3  478  <...> SP5MXW R-19
214100  -4 1697  SP5MXW IR7MGGC -04
214115 +10 1109  SP5MXW/P SP5MXW R+08

20m

UTC    dB Audio  Message
101130 -10 2868  SP5MXW IU2WKL +10 (x2)
101645 -12 1015  SP5MXW G4BWQ/P +01
103445 -10 1393  SP5MXW IZ0PTY RRR (x2)
181730 -24 1392  MW8KUZ/QRZ SP5MXW KO02
182215  +4 1392  SP5MXW MW8KUZ/QRZ +03 (x2)
211030  +9  377  SP5MXW <...> -04
211200  +5 1665  SP5MXW IW4DNI +07 (x2)
211345  -9 2841  SP5MXW 9A3TGY -07 (x2)
213645 -16 1277  SP5MXW V31DL -14 (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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