YO4AAC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Locator transmitted in a decoded message: KN35

Receiver-side FT8 activity involving YO4AAC, decoded by SO8OO in southeastern Poland. 387 related FT8 messages, 121 CQ messages, observed on 80m, 40m, 20m, 10m, across 31 UTC dates. Heard between 2026-05-26 and 2026-08-22.

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.

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

Overview

387
Related messages
121
CQ messages
31
UTC dates heard
-7 dB
Mean decoder S/N

Bands

First seen: 2026-05-26
Last seen: 2026-08-22 06:14 UTC

Activity Heatmap

Locator transmitted by YO4AAC

Approximate centre of KN35, decoded 2026-08-22 06:58 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 UTCBandYO4AAC S/NCounterpartCounterpart S/NMsgsCapture
08-22 08:13 10m - / - OZ5AGJ -20 / - 3 Partial capture
08-22 08:03 10m - / +8 IK4LZH +7 / - 3 ✓ Closing fragment
08-22 08:00 10m - / -1 F1PBZ -2 / - 2 ✓ Closing fragment
08-22 06:51 20m - / - DG5PW -8 / - 2 Partial capture
08-21 14:18 10m - / -7 IK1RQX 0 / - 3 ✓ Closing fragment
08-21 14:10 10m - / - DO4RP -19 / - 8 Partial capture
08-21 14:02 10m - / - DO1FDK -2 / - 2 Partial capture
08-21 13:58 10m - / +3 ON7HM -10 / - 7 ✓ Closing fragment
08-21 13:52 10m - / - ON7HM -6 / - 3 Partial capture
08-21 09:21 10m - / - DO1ANB -18 / - 6 Partial capture
08-21 09:18 10m - / -21 DK1MBY -8 / - 4 ✓ Closing fragment
08-21 09:11 10m - / - DK1MBY -12 / - 8 Partial capture
08-21 09:11 10m - / - IK4LZH +10 / - 4 Partial capture
08-21 09:10 10m - / +5 IZ3ZOG +1 / - 3 ✓ Closing fragment
08-07 08:33 20m - / -14 F1PBZ -12 / - 2 ✓ Closing fragment
07-31 19:27 40m -15 / - BA4II - / -16 5 Partial capture
07-31 19:25 40m -13 / -8 EU1EU -16 / -4 4 ✓ Full exchange observed
07-31 19:23 40m -12 / -9 RD3FY -16 / -2 4 ✓ Full exchange observed
07-12 18:12 40m -17 / - DD6IO - / -10 2 ✓ Closing fragment
07-12 18:08 40m -14 / - T22TT - / -18 2 Partial capture
07-04 17:46 20m - / -4 II7WWA -4 / - 2 ✓ Closing fragment
06-30 05:38 20m -10 / -8 II1WWA -24 / - 2 Partial capture
06-29 21:47 40m -14 / -4 GB2WWA -16 / - 3 ✓ Closing observed
06-29 21:13 40m - / -4 TM2WWA -11 / - 2 Partial capture
06-29 21:10 40m -17 / - 8A1WWA - / - 3 Partial capture
06-29 21:09 40m -17 / - TM2WWA - / - 2 Partial capture
06-29 21:07 40m -16 / - II9WWA - / -4 4 ✓ Closing fragment
06-29 21:06 40m -16 / - BI4SSB - / - 2 Partial capture
06-29 21:06 40m - / - SP9MOA -19 / - 3 Partial capture
06-29 21:05 40m -16 / - II0WWA - / -22 2 ✓ Closing fragment
06-29 04:38 40m -24 / -1 SN2WWA -19 / -14 2 Partial capture
06-28 07:22 20m -24 / -8 F1PSX -8 / - 6 ✓ Closing observed
06-27 19:38 40m -18 / - IQ7PU - / - 3 Partial capture
06-27 13:42 20m -17 / -8 <...> -20 / -10 5 Partial capture
06-27 08:26 20m -20 / -16 IQ5AAR -7 / -9 4 ✓ Full exchange observed
06-27 08:12 20m -20 / -17 DL1R -15 / -8 9 ✓ Full exchange observed
06-25 19:11 40m -8 / +4 II0RTER -3 / -4 2 Partial capture
06-25 19:06 40m -15 / - <...> - / -25 14 Partial capture
06-25 06:29 20m -21 / - I4BUQ - / - 3 Partial capture
06-25 06:27 20m -16 / -1 <...> -20 / -4 3 Partial capture
06-25 06:25 20m -15 / - IQ9GD - / - 2 Partial capture
06-23 06:40 40m -17 / - IQ4JO - / - 4 Partial capture
06-19 10:07 20m -15 / -8 IR0RPER -7 / -15 5 Partial capture
06-19 09:58 20m -8 / - IQ3UCY -11 / -20 5 ✓ Closing observed
06-18 19:02 20m - / +3 IQ7PU -2 / - 2 ✓ Closing fragment
06-18 06:13 40m -11 / - IQ4JO - / - 3 Partial capture
06-18 06:10 40m -14 / - IQ4FJ - / - 3 Partial capture
06-17 10:17 20m - / -9 SP2KW -14 / - 3 ✓ Closing fragment
06-16 17:23 40m -10 / -4 IQ3UCY -10 / - 4 ✓ Closing observed
06-16 17:22 40m -11 / - YO2LQF - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
141415 -22 1926  YO4AAC DO4RP JO31 (x3)
141845  -1 2108  YO4AAC IK1RQX JN44 (x3)
080045  +1 2588  YO4AAC F1PBZ -01 (x2)
080315  +5  492  YO4AAC IK4LZH JN54 (x3)
080915 -13 1479  YO4AAC OZ5AGJ JO47 (x4)
20m
UTC    dB Audio  Message
065145 -14 1758  CQ YO4AAC KN35 (x3)
065300  -1 1758  YO4AAC DG5PW JO30
065315 -12 1758  CQ YO4AAC KN35 (x11)
40m
UTC    dB Audio  Message
192330 -12 1350  RD3FY YO4AAC RR73
192345 -15 1350  YO4AAC RD3FY 73
192400 -14 1350  CQ YO4AAC KN35 (x3)
192545 -16 1033  YO4AAC EU1EU -08
192600 -13 1350  EU1EU YO4AAC R-04
192615 -16 1033  YO4AAC EU1EU RR73
192630 -13 1350  EU1EU YO4AAC 73
192700 -16 1350  CQ YO4AAC KN35
192730 -16 1350  BA4II YO4AAC -16 (x5)
80m
UTC    dB Audio  Message
183245  +0 1643  IQ6PE YO4AAC R-06
183345  -3 1643  IQ0VT YO4AAC KN35
183400 -15 2015  YO4AAC IQ0VT +00
183415  +0 1643  IQ0VT YO4AAC R-12
183430 -17 2015  YO4AAC IQ0VT RR73
183445  -3 1643  IQ0VT YO4AAC 73
183515  -1 1643  RA6ZD YO4AAC -02
183530 -14  976  YO4AAC RA6ZD R+00
183545  -4 1644  RA6ZD YO4AAC RR73
183600 -10  976  YO4AAC RA6ZD 73
183615  -7 1643  R9OOF YO4AAC -09 (x2)
183800  -4 1642  YO4AAC R7FG -03 (x2)
191245  -1 1058  IQ7KM YO4AAC KN35

Decoder S/N history by band

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