UB3YFO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO73

Receiver-side FT8 activity involving UB3YFO, decoded by SO8OO in southeastern Poland. 683 related FT8 messages, 417 CQ messages, observed on 80m, 40m, 20m, across 12 UTC dates. Heard between 2026-05-16 and 2026-08-09.

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

683
Related messages
417
CQ messages
12
UTC dates heard
-7 dB
Mean decoder S/N

Bands

80m 20m 40m
First seen: 2026-05-16
Last seen: 2026-08-09 07:57 UTC

Frequent QSO partners observed at SO8OO

Stations UB3YFO worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by UB3YFO

Approximate centre of KO73, decoded 2026-06-13 21:25 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 UTCBandUB3YFO S/NCounterpartCounterpart S/NMsgsCapture
08-09 09:57 40m - / - US8KA -14 / - 2 ✓ Closing fragment
08-09 09:24 20m -22 / - EY7BP - / -10 2 Partial capture
08-09 09:22 20m -21 / - PH3GB - / -19 2 Partial capture
08-09 09:17 20m -22 / - IT9KVQ - / -18 3 Partial capture
08-09 09:16 20m -21 / -19 I0XNH -10 / -20 4 Partial capture
08-09 08:54 20m -22 / - DB2VS - / -19 2 Partial capture
08-09 08:51 20m -22 / - DM5UE - / -8 4 Partial capture
08-09 08:49 20m -23 / - F5SOI - / -8 2 Partial capture
08-09 08:46 20m -23 / - MM0JTV - / -13 2 Partial capture
08-09 08:37 20m -24 / - PD0GIP - / -20 2 Partial capture
08-09 08:34 20m -20 / - IK2ZJP - / -9 2 Partial capture
08-09 08:13 20m -22 / - M7PUC - / -13 2 Partial capture
08-09 08:03 20m - / - EA5HEU -17 / - 3 Partial capture
08-09 07:49 20m -24 / -16 PD2WL -11 / -14 4 Partial capture
07-11 13:41 20m - / -17 DL2MEL -3 / - 3 Partial capture
07-11 13:04 20m - / - IK2ZJR -2 / - 10 Partial capture
06-20 10:09 20m -2 / -13 LZ1BT +9 / +3 9 ✓ Full exchange observed
06-20 10:06 20m +11 / - UD0O - / -19 3 ✓ Closing fragment
06-20 09:56 20m 0 / -6 RG4D/P -8 / +3 5 ✓ Full exchange observed
06-19 08:36 20m -7 / - G6MTI - / -14 3 Partial capture
06-19 08:27 20m -7 / -3 RY9W -19 / +6 3 ✓ Full exchange observed
06-19 08:19 20m -10 / - LZ1BT +4 / -4 9 Partial capture
06-19 08:13 20m -13 / +4 DL2SEW +2 / +10 5 ✓ Full exchange observed
06-19 08:07 20m -12 / - PC1K - / -14 2 ✓ Closing fragment
06-19 08:04 20m -12 / - DA1MHH - / -4 2 Partial capture
06-19 08:01 20m - / -5 IX1HPN -10 / - 3 ✓ Closing fragment
06-19 07:54 20m -2 / - M7YNE - / -17 2 Partial capture
06-19 07:53 20m - / -11 SV9MBH -24 / - 2 ✓ Closing fragment
06-19 04:43 20m - / -21 R6DYK +2 / - 2 ✓ Closing fragment
06-19 04:38 20m - / -19 RA6AVP -12 / - 5 Partial capture
06-14 13:12 20m +2 / -15 DL6KA -2 / -3 3 ✓ Full exchange observed
06-14 12:33 20m - / - R4CBF/P -11 / - 2 ✓ Closing fragment
06-14 12:06 20m - / -5 R2BRU -2 / - 3 ✓ Closing fragment
06-14 11:29 20m -12 / - EA5EE - / - 2 ✓ Closing fragment
06-14 11:18 20m -13 / - IZ1HJU - / -2 2 ✓ Closing fragment
06-14 11:15 20m -17 / - RV1AG - / -17 2 Partial capture
06-14 10:18 20m -17 / - R6DVV - / -3 2 Partial capture
06-14 09:42 20m - / -13 DL3KZA -6 / - 4 ✓ Closing fragment
06-14 09:36 20m - / - EU2ABM -14 / - 3 Partial capture
06-14 09:36 20m -2 / -14 RK6OV 0 / -5 5 ✓ Full exchange observed
06-14 09:17 20m -6 / - OE1AES - / -4 3 ✓ Closing fragment
06-14 09:13 20m -1 / -18 RK6DZ -17 / -18 7 ✓ Full exchange observed
06-14 09:10 20m 0 / -16 UB6OAJ -6 / -8 4 ✓ Full exchange observed
06-14 09:06 20m +2 / -8 IK4LZH +9 / +1 8 ✓ Full exchange observed
06-14 09:06 20m - / -16 M1WLK -4 / - 2 Partial capture
06-14 09:02 20m 0 / - F1ODM -5 / - 2 ✓ Closing observed
06-14 09:01 20m +2 / - DL5MK -13 / -12 3 ✓ Closing observed
06-14 08:58 20m 0 / - RA9YJU -20 / -8 3 ✓ Closing observed
06-14 08:56 20m 0 / -10 RN6HGI -6 / -4 3 ✓ Full exchange observed
06-14 08:53 20m -6 / - R2FBW - / -5 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
091645 -21 1773  I0XNH UB3YFO -20
091700  -6 2712  UB3YFO I0XNH R-19
091715 -24 1773  IT9KVQ UB3YFO -18
091730 -12 2710  UB3YFO I0XNH R-19
091745 -20 1773  IT9KVQ UB3YFO -18
091800 -11 2711  UB3YFO I0XNH R-19
091815 -22 1773  IT9KVQ UB3YFO -18
092215 -21 1773  PH3GB UB3YFO -19 (x2)
092415 -21 1773  EY7BP UB3YFO -10 (x2)
092615 -23 1773  PH3GB UB3YFO -12
092715 -22 1773  ON5TB UB3YFO -13
093100 -22 1458  UB3YFO ON5TB R-18
113430  -9 1777  R5BM/M UB3YFO -18
40m 
UTC    dB Audio  Message
203515 -15 2339  CQ UB3YFO KO73 (x2)
212100  +2 1801  UB3YFO UA2KU -08
212115 -18 2223  UA2KU UB3YFO R-02
212130  +7 1801  UB3YFO UA2KU RR73
212145 -18 2223  UA2KU UB3YFO 73
212215 -15 2224  CQ UB3YFO KO73 (x2)
212415 -15 1892  UA3AVY UB3YFO -15
212515 -19 1069  CQ UB3YFO KO73                        a1 (x2)
212730  +4  768  UB3YFO EA8UP R-15 (x2)
095700 -16 1854  UB3YFO US8KA R+15 (x2)
80m 
UTC    dB Audio  Message
210330  -5  891  UB3YFO RZ4M LO44
210345 -20 1860  RZ4M UB3YFO +01
210400  -9  891  UB3YFO RZ4M R-08 (x2)
210500  +0  689  UB3YFO G0OYQ IO93 (x3)
210630  -4 1850  UB3YFO OZ5AGJ JO47 (x3)
210945 -15 1860  CQ UB3YFO KO73 (x5)

Decoder S/N history by band

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