UF5F — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO98

Receiver-side FT8 activity involving UF5F, decoded by SO8OO in southeastern Poland. 826 related FT8 messages, 251 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 77 UTC dates. Heard between 2026-05-26 and 2026-08-24.

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

826
Related messages
251
CQ messages
77
UTC dates heard
-9 dB
Mean decoder S/N

Bands

First seen: 2026-05-26
Last seen: 2026-08-24 00:48 UTC

Activity Heatmap

Locator transmitted by UF5F

Approximate centre of KO98, decoded 2026-08-23 20:07 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 UTCBandUF5F S/NCounterpartCounterpart S/NMsgsCapture
08-23 20:03 80m -1 / - JA5MHD - / - 5 Partial capture
08-23 19:59 80m +3 / -5 IK6GTF -5 / -14 4 ✓ Full exchange observed
08-23 19:54 80m 0 / -15 RK6OV -11 / -3 8 ✓ Full exchange observed
08-23 19:53 80m -8 / -15 JH0NOS -10 / -14 6 ✓ Full exchange observed
08-22 20:56 40m -3 / - JM3UGA - / - 3 Partial capture
08-22 20:51 40m -3 / - HL5BPF - / -8 5 ✓ Closing fragment
08-22 18:40 80m -6 / - R1530IG - / - 2 Partial capture
08-21 21:00 20m - / +6 N1HMT -6 / - 3 ✓ Closing fragment
08-21 20:00 80m -2 / - JA1KNB - / -24 2 Partial capture
08-21 02:25 40m - / -23 R2EC -12 / - 2 Partial capture
08-20 19:53 20m -10 / -6 D2IM -2 / +2 4 ✓ Full exchange observed
08-20 19:46 20m - / +10 DL9MY +3 / - 2 Partial capture
08-20 19:06 40m - / -6 RA4FUP -3 / - 8 Partial capture
08-20 19:01 40m -3 / - BG2GWN - / -9 4 ✓ Closing fragment
08-20 03:25 40m -12 / - N1NRL - / - 4 Partial capture
08-20 01:39 80m -9 / - KF9UG - / - 10 Partial capture
08-19 02:00 80m -4 / -7 IQ4JO +5 / +1 5 ✓ Full exchange observed
08-19 01:57 80m - / - R6LE -2 / - 2 Partial capture
08-19 01:56 80m -2 / +9 DO5PY +4 / +3 5 ✓ Full exchange observed
08-19 01:56 80m -4 / -7 MM0KQC -6 / -6 6 ✓ Full exchange observed
08-19 01:53 80m +2 / - ZP5DBC - / -12 5 ✓ Closing fragment
08-18 02:37 80m -18 / - R4IK -17 / -6 3 ✓ Closing observed
08-18 02:36 80m - / - DO5PY +1 / - 3 Partial capture
08-18 02:36 80m - / - F4FPR -12 / - 2 Partial capture
08-18 02:34 80m -13 / - PT2TD - / -24 3 ✓ Closing fragment
08-18 02:33 80m -14 / - CX6TU - / - 3 Partial capture
08-17 20:59 80m -6 / - D2UY - / -11 10 ✓ Closing fragment
08-17 19:35 40m - / - R9FE -8 / - 2 ✓ Closing fragment
08-16 18:17 20m -9 / - 7X2KF - / - 5 Partial capture
08-16 18:12 20m -14 / - C91RU - / - 6 Partial capture
08-15 20:53 40m -12 / - CT2GQA - / -9 3 Partial capture
08-15 20:51 40m -14 / - EA5FD - / -16 2 ✓ Closing fragment
08-15 20:48 40m -16 / +6 PF1B -16 / -9 4 ✓ Full exchange observed
08-15 20:46 40m -16 / -3 ON3CCM -13 / - 3 ✓ Closing observed
08-15 20:44 40m -12 / - BA6IM - / -22 4 Partial capture
08-15 20:42 40m -11 / - BA7NLL - / -19 2 ✓ Closing fragment
08-15 20:33 40m -15 / - BI6PWL - / -18 3 Partial capture
08-15 20:23 80m -5 / - JA5MHD - / -12 3 ✓ Closing fragment
08-15 20:13 20m - / - M9LCB -18 / - 2 Partial capture
08-14 02:35 80m -6 / - TF3VS - / - 5 Partial capture
08-14 02:35 80m - / - EA5HM -12 / - 4 Partial capture
08-14 02:33 80m -4 / -10 IW2DNI +12 / 0 5 ✓ Full exchange observed
08-14 02:31 80m -6 / - 9A4BP/P - / -13 2 Partial capture
08-14 02:30 80m -4 / - TN8GD - / - 2 Partial capture
08-13 02:31 80m -9 / - ZY7F - / - 5 Partial capture
08-12 02:03 20m - / -12 IU2VBP -16 / - 4 ✓ Closing fragment
08-11 02:04 40m -13 / - K8USA - / -11 3 Partial capture
08-11 01:53 40m -17 / - KT4WI - / -5 5 ✓ Closing fragment
08-11 01:51 40m -16 / - HC1BG - / - 2 Partial capture
08-10 03:26 20m -17 / - HK3YL - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
194700  +3  410  UF5F DL9MY R+10
195315 -10 1612  D2IM UF5F KO98
195330  +1 2377  UF5F D2IM -06
195345 -10 1612  D2IM UF5F R+02
195400  -4 2377  UF5F D2IM RR73
195445  -8 1612  CQ JA UF5F KO98 (x4)
195845  -3 1612  IK0XBU/P UF5F -21
202030 -17  814  UF5F NP3RK RR73
210045  -4 1324  UF5F N1HMT +06 (x3)
024815 -24 1357  UF5F XE1RBV -02
80m
UTC    dB Audio  Message
195845  +1 1549  CQ JA UF5F KO98
195900  -7 1494  UF5F IK6GTF JN72
195915  +3 1549  IK6GTF UF5F -14
195930  -2 1493  UF5F IK6GTF R-05 (x2)
200115  +6 1549  CQ JA UF5F KO98 (x4)
200315  -1 1549  JA5MHD UF5F KO98 (x5)
200715  -7 1549  JA5XAE UF5F KO98
40m
UTC    dB Audio  Message
022530 -10 2359  UF5F R2EC KO82 (x2)
205100  -2 1580  HL5BPF UF5F KO98 (x5)
205330  +0 1580  CQ DX UF5F KO98 (x2)
205430  +1 1580  DL3RSK UF5F -15
205445  -8  434  UF5F SK7OL JO66
205600  +1 1580  CQ DX UF5F KO98
205630  -4 1580  JM3UGA UF5F KO98 (x3)
10m
UTC    dB Audio  Message
192915 -15 1400  UF5F RV3KC 73
194545 -23 1408  IK1RQX UF5F RR73
194645 -24 1408  LU9IMM UF5F RR73
194715 -21 1408  CQ SA UF5F KO98 (x3)
195445 -21 1408  ZW1WEB UF5F KO98
134615 -14  778  UF5F A71AT -16
060100 -11 2297  UF5F <...> -08
130230  -7 1413  UF5F DK3HV JO31
130700 -18 1413  PY2DS UF5F R-17 (x2)
130800 -23 1413  CQ JA UF5F KO98
131630 -22 1413  JH5FTY UF5F -21
174730 -14 2576  UF5F R6OE KN87
160m
UTC    dB Audio  Message
194745 -10  980  UF5F R6ML LN17 (x2)
194815  +4 1497  UF5F OM2WQ JN88
194830 -16  843  R6ML UF5F RR73
194845 -16 2002  UF5F RA6ATZ KN96
194845  -6  981  UF5F R6ML 73
194845  +2 1497  UF5F OM2WQ JN88
194900 -11  844  OM2WQ UF5F -17
194915  +0 1497  UF5F OM2WQ R-18
194930 -12  844  OM2WQ UF5F RR73
194945 -16 2003  UF5F RA6ATZ KN96
194945  +6 1497  UF5F OM2WQ 73
195015 -17 2003  UF5F RA6ATZ KN96 (x3)

Decoder S/N history by band

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