SQ9JKM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO90

Receiver-side FT8 activity involving SQ9JKM, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-06-26.

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 17 FT8 messages attributed to SQ9JKM as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -1 dB; no usual signal pattern is inferred.

Overview

17
Messages attributed
3
UTC dates decoded
5
Active 15-min windows
-1 dB
Estimated median S/N

Bands

20m · 17
First attributed message: 2026-06-11
Last attributed message: 2026-06-26 16:06 UTC

Observed FT8 message patterns

Attributed sample
17 messages
Active dates
3 UTC dates
Estimated median S/N
-1 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 14.

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 SQ9JKM in decoded directed-looking exchanges:

Most frequent locator attributed to SQ9JKM

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
JO90 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
208 km (approx.)
Last such locator decoded
2026-06-26 16:06 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 UTCBandSQ9JKM S/NCounterpartCounterpart S/NMsgsCapture
08-27 03:57 20m - / +3 K4HWS -10 / - 2 ✓ Closing fragment
08-26 04:20 20m - / -22 AD9GE -10 / - 2 ✓ Closing fragment
08-26 03:41 20m - / -9 4L1AX +2 / - 2 ✓ Closing fragment
08-26 03:10 20m - / -10 4L1AX -6 / - 2 Partial capture
08-25 11:41 20m - / -18 ON1JP -13 / - 2 ✓ Closing fragment
08-25 11:39 20m - / - G5JCC -18 / - 3 Partial capture
08-24 10:36 20m - / -11 K4RUM -6 / - 2 Partial capture
08-22 05:25 20m - / - V31DL -14 / - 3 ✓ Closing fragment
08-22 05:24 20m - / -8 M0LAD +10 / - 2 ✓ Closing fragment
08-20 04:59 20m - / -25 HK3YL -7 / - 2 Partial capture
08-05 06:37 20m - / -2 9A6NTK +6 / - 2 ✓ Closing fragment
08-04 03:37 20m - / -19 7Z1BQ -22 / - 2 ✓ Closing fragment
07-21 04:51 20m - / -12 M5RJR -8 / - 2 ✓ Closing fragment
07-20 03:39 20m - / -18 N2BJ -12 / - 2 ✓ Closing fragment
07-19 10:16 20m - / -16 TK5K -6 / - 3 ✓ Closing fragment
07-13 10:41 20m - / +1 F4HSB -23 / - 2 Partial capture
07-10 04:36 20m - / -5 EA5ISM -22 / - 2 ✓ Closing fragment
07-07 03:21 20m - / +2 LX1TI -4 / - 2 ✓ Closing fragment
07-03 04:44 20m - / -8 W0QQ -11 / - 3 ✓ Closing fragment
07-03 04:36 20m - / -3 EA1FAC -6 / - 2 Partial capture
07-03 03:44 20m - / -13 K2L -14 / - 2 ✓ Closing fragment
06-30 03:21 20m - / -14 RZ4AZ -4 / - 3 ✓ Closing fragment
06-27 03:17 20m - / -13 WB2WGH -7 / - 3 Partial capture
06-26 16:04 20m 0 / - KF0YOB - / - 4 Partial capture
06-24 11:12 20m - / -9 G1LQT -12 / - 2 Partial capture
06-24 10:36 10m - / -6 EA3AGF -8 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
114200 -10 1579  SQ9JKM ON1JP RR73
114200 -14 1370  SQ9JKM G5JCC R+14
114530 -20 1620  SQ9JKM EA2EWL +00
030100 -11  832  SQ9JKM <...> +01
031030  -7 1550  SQ9JKM 4L1AX -10 (x4)
040145 -17 1138  SQ9JKM TA2PCB +00
042045  -9 2634  SQ9JKM AD9GE -22 (x2)
044845 -16 2248  SQ9JKM EA4ITG -15
035730 -11 1378  SQ9JKM K4HWS +03 (x2)
040330 -24 2331  SQ9JKM N4MRM EM78
10m 
UTC    dB Audio  Message
103445 -17 1944  SQ9JKM IW4BYK RR73
103600  -8 1494  SQ9JKM EA3AGF -06 (x2)
105800 -16 1460  SQ9JKM <...> -01
105930 -14 1124  SQ9JKM F6JUW +04

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