SM4UEF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Locator transmitted in a decoded message: JP70

Receiver-side FT8 activity involving SM4UEF, decoded by SO8OO in southeastern Poland. 72 related FT8 messages, observed on 40m, 20m, 10m, across 14 UTC dates. Heard between 2026-05-14 and 2026-08-06.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

72
Related messages
0
CQ messages
14
UTC dates heard
-7 dB
Mean decoder S/N

Bands

First seen: 2026-05-14
Last seen: 2026-08-06 14:52 UTC

Activity Heatmap

Locator transmitted by SM4UEF

Approximate centre of JP70, decoded 2026-08-11 21:14 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandSM4UEF S/NCounterpartCounterpart S/NMsgsCapture
08-11 21:15 40m -1 / - BG4UVR - / -16 3 ✓ Closing fragment
08-11 21:14 40m 0 / - 9J2FI - / -15 2 Partial capture
08-06 16:49 20m - / -7 DL1FOB +2 / - 6 ✓ Closing fragment
08-06 16:31 20m -12 / - 7Z1BQ - / - 2 ✓ Closing fragment
08-06 14:44 20m -5 / - 3B8HK - / -4 3 ✓ Closing fragment
07-24 20:47 20m -8 / - JA3HDM - / -6 2 ✓ Closing fragment
07-24 19:31 40m - / +4 DG0JW -9 / - 3 ✓ Closing fragment
07-24 19:30 40m - / - HG8LXL -8 / - 3 Partial capture
07-24 19:27 40m - / +1 SP1I -13 / - 6 Partial capture
07-24 18:37 80m 0 / - ZS6WAB - / - 2 Partial capture
07-24 18:34 80m -5 / - ZS6WAB - / - 2 Partial capture
07-23 15:11 20m -18 / - A41ZZ - / -9 2 ✓ Closing fragment
07-23 15:10 20m -20 / - JH4BYS - / -12 2 ✓ Closing fragment
07-23 15:06 20m -15 / - VU4R - / -20 2 ✓ Closing fragment
07-23 15:01 20m -9 / - VU4R - / - 5 Partial capture
07-23 14:27 20m -14 / - VU4R - / - 3 Partial capture
07-14 16:08 20m -11 / -5 7Z1BM -18 / -6 5 ✓ Full exchange observed
07-14 15:47 20m -19 / - RI0SP - / -1 3 ✓ Closing fragment
07-14 15:26 20m - / - R6DVV -16 / - 3 Partial capture
07-09 15:31 20m -5 / - S09S - / -16 6 ✓ Closing fragment
06-26 11:21 10m +9 / - C91RU - / -12 3 Partial capture
06-23 14:53 20m -16 / - N6AX - / -15 2 Partial capture
06-16 17:01 20m - / - EA3EDU +11 / - 2 Partial capture
06-16 16:58 20m - / - BI8SSW -4 / - 2 Partial capture
06-13 12:01 20m 0 / - RI0SP -14 / -10 4 ✓ Closing observed
06-13 11:51 20m +12 / - 3B8HK - / - 4 Partial capture
06-12 20:13 40m -8 / - 9X5KM - / - 8 Partial capture
06-12 20:02 40m -7 / - 9X5KM - / - 9 Partial capture
06-12 19:55 40m - / - IU4PPL -4 / - 2 Partial capture
06-12 19:52 40m -4 / - 9X5KM - / - 9 Partial capture
06-10 20:42 40m +5 / - TL8BNW -10 / -13 6 ✓ Closing observed
06-09 21:37 40m -10 / - 9X5KM - / - 5 Partial capture
06-09 21:27 40m +1 / - 9X5KM - / - 7 Partial capture
06-03 14:59 20m +1 / -4 DK4BP -21 / - 2 ✓ Closing observed
06-03 14:55 20m -5 / -1 SV9TLU -9 / -5 6 ✓ Full exchange observed
06-02 21:48 20m - / - DF8DO -14 / - 2 Partial capture
06-02 21:42 20m +5 / - CP7DX - / - 8 Partial capture
05-31 14:51 10m -9 / -13 RW6A +12 / -16 3 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
193000 -14 1188  SM4UEF SP1I R+01
193000  -8 1493  SM4UEF HG8LXL KN06
193100 -10 1237  SM4UEF DG0JW +04
193100  -9 1492  SM4UEF HG8LXL KN06
193130  -9 1237  SM4UEF DG0JW +04
193130  -7 1491  SM4UEF HG8LXL KN06
193200  -8 1237  SM4UEF DG0JW RR73
193315 -19 1305  F5PBG SM4UEF RR73
193430  -7 1492  SM4UEF HG8LXL 73
193445 -17 1305  SQ3KO SM4UEF -12
211400  +0 2867  9J2FI SM4UEF JP70 (x2)
211530  +1 2867  BG4UVR SM4UEF -16 (x3)
20m
UTC    dB Audio  Message
204730  -9  379  JA3HDM SM4UEF R-06 (x2)
144445  -5  308  3B8HK SM4UEF JP70 (x3)
163115 -12  353  7Z1BQ SM4UEF JP70 (x2)
164945  +1 2920  SM4UEF DL1FOB JO63 (x6)
165845 -10  365  W8DOD SM4UEF JP70
170430  -6  324  WY0V SM4UEF JP70
80m
UTC    dB Audio  Message
183400  -4  307  ZS6WAB SM4UEF JP70 (x4)
10m
UTC    dB Audio  Message
144345  -1  398  OJ0MN SM4UEF R-16
145145 +14  964  SM4UEF RW6A -13
145200  -9  624  RW6A SM4UEF R-16
145215 +11  964  SM4UEF RW6A RR73
145345  -9  474  SM4UEF R4PEX 73
112115  +9  501  C91RU SM4UEF JP70 (x3)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.