SQ5EBM — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving SQ5EBM, decoded by SO8OO in southeastern Poland. 100 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-09-19.

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 100 FT8 messages attributed to SQ5EBM as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (72%), followed by 80 m (28%). Several six-hour UTC windows tied for the largest share (89%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (100%); the estimated median was +10 dB.

Overview

100

Messages attributed

UTC dates decoded

Active 15-min windows

+10 dB

Estimated median S/N

Bands

160m · 72 80m · 28

First attributed message: 2026-08-28
Last attributed message: 2026-09-19 21:39 UTC

Observed FT8 message patterns

Attributed sample: 100 messages
Active dates: 7 UTC dates
Estimated median S/N: +10 dB
Estimated 10th-90th percentile: 0 to +22 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 100.

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 SQ5EBM in decoded directed-looking exchanges:

7X2TT · Algeria R8DX · Asiatic Russia RD1A · European Russia V26OC · Antigua & Barbuda 9A3TGY · Croatia SP6FME · Poland

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 SQ5EBM

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 · 79 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 290 km (approx.)
Last such locator decoded: 2026-09-19 21:38 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	SQ5EBM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 21:35	160m	+6 / +5	7X2TT	0 / -	12	✓ Full exchange observed
09-19 19:00	160m	+24 / -	R8DX	- / +2	2	✓ Closing fragment
09-18 03:59	160m	+18 / -	VP2MAA	- / -	2	Partial capture
09-18 03:52	160m	+14 / -	V26OC	- / -10	9	✓ Closing fragment
09-17 20:19	160m	+1 / -	RI1FJZ	- / -5	2	Partial capture
09-17 20:12	160m	- / -	UA1TAT	-3 / -	4	Partial capture
09-04 20:03	160m	+4 / -	RI1FJL	- / -3	22	Partial capture
09-04 19:56	160m	+19 / -	RI1FJL	- / -20	6	Partial capture
09-03 20:27	160m	+7 / -	RI1FJL	- / -	12	Partial capture
09-03 18:38	160m	+16 / -15	RD1A	-13 / -	4	✓ Full exchange observed
08-31 21:52	80m	- / -	EA1IOK	-6 / -	2	Partial capture
08-31 21:52	80m	+20 / -8	SP6FME	+22 / -	6	✓ Full exchange observed
08-31 21:49	80m	+22 / -12	9A3TGY	-10 / -14	10	✓ Full exchange observed
08-31 20:36	80m	+2 / -	RI1FJL	- / -	8	Partial capture
08-28 22:08	80m	+20 / -	RI1FJL	- / -	11	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
190015 +20 2936  CQ DX SQ5EBM KO02
190045 +26 2936  R8DX SQ5EBM +02 (x2)
213515  +0 2936  7X2TT SQ5EBM KO02 (x8)
213900  -2  496  SQ5EBM 7X2TT +05
213915 +16 2936  7X2TT SQ5EBM R+19
213930  +2  496  SQ5EBM 7X2TT RR73
213945 +15 2936  7X2TT SQ5EBM 73

80m

UTC    dB Audio  Message
215045 +22 2966  9A3TGY SQ5EBM KO02
215100  -9 2752  SQ5EBM 9A3TGY -12
215115 +22 2966  9A3TGY SQ5EBM R-14
215130 -11 2752  SQ5EBM 9A3TGY RR73
215145 +18 2966  9A3TGY SQ5EBM R-14
215200 -10 2753  SQ5EBM 9A3TGY RR73
215215 +25 2967  9A3TGY SQ5EBM 73
215230 +25 2967  SQ5EBM SP6FME JO90
215230  -3  512  SQ5EBM EA1IOK IN62
215300 +18 2967  SQ5EBM SP6FME JO90
215315 +18 2967  SP6FME SQ5EBM +36
215330 +24 2967  SQ5EBM SP6FME R-08
215330  -8  513  SQ5EBM EA1IOK IN62
215345 +23 2967  SP6FME SQ5EBM RR73
215400 +23 2967  SQ5EBM SP6FME 73

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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