SQ3PMX — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO72

Receiver-side FT8 activity involving SQ3PMX, decoded by SO8OO in southeastern Poland. 2,101 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 80 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-21.

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 2,101 FT8 messages attributed to SQ3PMX as the transmitting token by decoded message structure across 80 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (68%), followed by 80 m (19%) and 20 m (12%). The busiest six-hour window was 14:00-20:00 UTC, containing 44% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

2,101
Messages attributed
80
UTC dates decoded
342
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-21 06:19 UTC

Observed FT8 message patterns

Attributed sample
2,101 messages
Active dates
80 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-19 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 495, moderate (-15 to -9 dB) 608, strong (≥ -8 dB) 998.

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.

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 SQ3PMX

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
JO72 · 1,335 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
552 km (approx.)
Last such locator decoded
2026-10-21 06:18 UTC

Other locator fields attributed to this token: JO74 (10).

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 UTCBandSQ3PMX S/NCounterpartCounterpart S/NMsgsCapture
10-22 18:19 40m - / -8 HB9TOC +3 / - 2 ✓ Closing fragment
10-22 18:16 80m - / -12 SQ2RST +2 / - 2 Partial capture
10-22 04:59 40m - / -4 RN3DEY -15 / - 2 ✓ Closing fragment
10-21 16:52 40m - / -9 R4FAH -14 / - 2 ✓ Closing fragment
10-21 06:18 40m -7 / - HB9TWU -14 / -4 4 ✓ Closing observed
10-21 06:17 40m -14 / - EU1EU - / -5 2 ✓ Closing fragment
10-21 06:16 40m -13 / - F5URG - / -19 3 ✓ Closing fragment
10-21 06:14 40m -12 / - SP/DG1HVL/P - / -14 2 Partial capture
10-21 06:12 40m -1 / - G4ZCN - / -11 3 ✓ Closing fragment
10-21 06:11 40m -6 / - HA3KZ - / -7 4 ✓ Closing fragment
10-21 06:07 40m -6 / - G8ERJ - / -13 2 Partial capture
10-21 06:05 40m -8 / -15 DH5BM -9 / - 4 ✓ Closing observed
10-21 04:25 40m - / -8 CT7BRV -2 / - 2 ✓ Closing fragment
10-20 17:51 40m -11 / - 9M2SWI - / -20 3 Partial capture
10-20 17:47 40m -10 / - 9M2SWI - / - 3 Partial capture
10-20 17:46 40m -8 / - IW2CAK -10 / -12 3 ✓ Closing observed
10-20 17:42 40m -6 / - UA9SY - / -14 3 ✓ Closing fragment
10-20 17:41 40m - / - HA0GZ -20 / - 2 Partial capture
10-20 17:41 40m -7 / -8 M9XPN -7 / -9 10 ✓ Full exchange observed
10-20 17:41 40m -7 / - BG2EFX - / -20 2 Partial capture
10-20 17:38 40m -4 / - BD1TX - / - 2 Partial capture
10-20 17:36 40m -4 / - R9SAP - / -15 2 ✓ Closing fragment
10-20 17:34 40m -6 / - BI3UPU - / -13 4 Partial capture
10-20 17:34 40m -9 / - F4CWQ -2 / -2 3 ✓ Closing observed
10-20 17:28 40m - / -12 EB1EXS -8 / - 4 ✓ Closing fragment
10-20 17:27 40m - / - UA9SY -9 / - 2 Partial capture
10-20 17:26 40m - / - M9XPN -6 / - 2 Partial capture
10-20 17:21 40m - / - SP2KW -3 / - 4 Partial capture
10-20 17:16 40m -8 / - G8XDD/P - / - 7 Partial capture
10-20 17:14 40m -5 / - RT8T - / -17 3 ✓ Closing fragment
10-20 17:10 40m -7 / - G8XDD/P - / - 2 Partial capture
10-20 13:14 40m -11 / - OM1DHI - / - 2 Partial capture
10-20 13:12 40m -12 / +2 OT4R -16 / -1 6 ✓ Full exchange observed
10-20 13:10 40m -13 / - ON3ONX - / -4 3 ✓ Closing fragment
10-20 13:08 40m -13 / - SQ2NUH -9 / 0 4 ✓ Closing observed
10-20 13:07 40m -14 / - ON3ONX - / - 2 Partial capture
10-20 13:05 40m -18 / - OR82CLM - / 0 2 Partial capture
10-20 13:04 40m -17 / +7 SP4WJ -22 / -5 3 ✓ Full exchange observed
10-20 13:02 40m -16 / - OH1TEV - / -5 4 ✓ Closing fragment
10-19 04:25 80m +3 / 0 IZ2QPP -7 / -15 5 ✓ Full exchange observed
10-19 04:22 80m +2 / -8 DO1FZL +4 / -17 5 ✓ Full exchange observed
10-19 04:22 80m +6 / - DG1YHP +2 / -8 3 ✓ Closing observed
10-18 23:00 60m -16 / +6 EB1LA -2 / +1 6 ✓ Full exchange observed
10-18 22:58 60m -12 / - SM2OTU -22 / -12 3 ✓ Closing observed
10-17 07:20 40m -17 / -13 HA8UM -2 / -5 5 ✓ Full exchange observed
10-17 05:45 40m -13 / - C5R - / -22 2 Partial capture
10-17 05:42 40m -8 / -15 R5CB -14 / -1 6 ✓ Full exchange observed
10-16 05:24 40m - / -15 RU3GC +6 / - 2 ✓ Closing fragment
10-16 04:17 40m - / -4 UA3RBM -13 / - 2 ✓ Closing fragment
10-16 04:13 40m - / -17 R7MP -6 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
061900  +1 1722  HB9TWU SQ3PMX R-04
061915 -14 1703  SQ3PMX HB9TWU RR73
061930  -6 1722  HB9TWU SQ3PMX 73
164915 -20 1758  SQ3PMX RU4LM -06
165215 -15 1981  SQ3PMX R4FAH -09 (x2)
175045  -9 1908  SQ3PMX PD0MNO RR73
175115 -24 2032  SQ3PMX DK1ZB JN57
044600 -17  828  SQ3PMX EA7R -11
045930 -17 2227  SQ3PMX RN3DEY -04 (x2)
054115  -9 1042  SQ3PMX F4AHJ RR73
181900  +3  685  SQ3PMX HB9TOC -08 (x2)
182100 -12  238  SQ3PMX M1EPZ RR73
80m
UTC    dB Audio  Message
042230  +2 1002  SQ3PMX DO1FZL JO50
042245  +7 1002  DG1YHP SQ3PMX RR73
042315  +7 1002  DO1FZL SQ3PMX -17
042330  +7 1003  SQ3PMX DO1FZL R-08
042345  -2 1001  DO1FZL SQ3PMX RR73
042400  +2 1003  SQ3PMX DO1FZL 73
042415  +9 1001  CQ SQ3PMX JO72 (x2)
042500  -3  547  SQ3PMX IZ2QPP JN46
042515  +6 1001  IZ2QPP SQ3PMX -15
042530 -10  547  SQ3PMX IZ2QPP R+00
042545  +0 1001  IZ2QPP SQ3PMX RR73
042600  -8  547  SQ3PMX IZ2QPP 73
181600  +4  325  SQ3PMX SQ2RST -12 (x2)
60m
UTC    dB Audio  Message
200330 -17 1807  SQ3PMX RR73; PA3ANG <...> -14
200345  -2 2430  OJ0YL SQ3PMX 73
200500  +0 1330  SQ3PMX SN1A JO73 (x4)
225845 -11 1190  SM2OTU SQ3PMX -12 (x2)
225930 -22 1933  SQ3PMX SM2OTU 73
230030  -2  788  SQ3PMX EB1LA IN73 (x2)
230115 -17 1450  EB1LA SQ3PMX +01
230130  -2  788  SQ3PMX EB1LA R+06
230145 -14 1450  EB1LA SQ3PMX RR73
230200  -2  788  SQ3PMX EB1LA 73
20m
UTC    dB Audio  Message
201600  -2 2542  SQ3PMX D2IM RR73
040200 -16 1264  SQ3PMX R0ACR -10 (x2)
064945  +2 1710  SQ3PMX <...> -16 (x11)
161415  -9 1348  SQ3PMX CT1END/P RR73
10m
UTC    dB Audio  Message
094200 -16 2178  SQ3PMX IK4JPP -06

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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