WC4H — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States

Receiver-side FT8 activity involving WC4H, decoded by SO8OO in southeastern Poland. 956 related FT8 messages, 141 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 29 UTC dates. Heard between 2026-05-24 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

956
Related messages
141
CQ messages
29
UTC dates heard
-7 dB
Mean decoder S/N

Bands

First seen: 2026-05-24
Last seen: 2026-08-22 00:04 UTC

Activity Heatmap

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 UTCBandWC4H S/NCounterpartCounterpart S/NMsgsCapture
08-22 02:03 80m -22 / - KC2RDX - / -12 2 ✓ Closing fragment
08-22 02:00 80m - / - G8OO -3 / - 9 Partial capture
08-22 01:59 80m -18 / -17 DO3KTY +1 / -24 13 ✓ Full exchange observed
08-22 01:54 80m - / - UT7UA +6 / - 6 Partial capture
08-22 01:52 80m - / - OK1DX +8 / - 3 Partial capture
08-22 01:31 60m - / -13 OZ7FOC -12 / - 19 Partial capture
08-22 01:12 80m - / -17 MM0KQC -20 / - 2 Partial capture
08-22 00:34 80m - / -6 OH1MLZ +3 / - 3 ✓ Closing fragment
08-19 02:32 80m -22 / -13 IU8SDA +15 / - 6 Partial capture
08-19 02:29 80m -22 / - DO9BAU - / - 4 Partial capture
08-19 02:27 80m - / - 9A4AA +4 / - 2 Partial capture
08-19 02:24 80m -24 / -10 9A5E +22 / - 5 ✓ Closing observed
08-19 02:20 80m -24 / -15 IZ2DVI +10 / -21 5 ✓ Full exchange observed
08-19 02:15 80m -24 / -11 OK1XD +12 / -18 4 ✓ Full exchange observed
08-19 02:11 80m - / - DL5YCL -10 / - 2 Partial capture
08-19 02:10 80m - / -11 SV8JE +18 / - 7 ✓ Closing fragment
08-19 02:08 80m -24 / - CE2SV - / -16 5 ✓ Closing fragment
08-19 02:04 80m -19 / - A67TED - / - 3 Partial capture
08-19 02:03 80m - / - SP9IZV +10 / - 4 Partial capture
08-19 02:02 80m - / - EA2FBG -15 / - 4 Partial capture
08-19 02:01 80m - / -15 9A2LM 0 / - 2 Partial capture
08-19 02:01 80m - / - IW8RQA -4 / - 2 Partial capture
08-19 01:57 80m -24 / -7 HB9CXZ +4 / - 4 ✓ Closing observed
08-19 01:54 80m -24 / -10 SP6JIU +29 / - 3 ✓ Closing observed
08-18 05:30 80m - / -11 DL6II 0 / - 15 Partial capture
08-18 04:24 60m - / -14 DG9RAB -13 / - 8 Partial capture
08-18 03:20 60m - / -8 F8NHF +4 / - 3 ✓ Closing fragment
08-18 03:08 60m - / -16 SV2HTI -3 / - 2 ✓ Closing fragment
08-18 03:03 60m - / -19 DK0RPO -11 / - 3 ✓ Closing fragment
08-18 02:55 60m - / -12 DB3OI +6 / - 2 ✓ Closing fragment
08-18 02:50 60m - / -17 G4ATX +3 / - 7 ✓ Closing fragment
08-18 02:48 60m - / -19 IV3IRO +10 / - 2 ✓ Closing fragment
08-08 03:08 40m - / - PD1WMD -17 / - 4 Partial capture
08-07 07:03 40m - / - IZ5SIH -14 / - 2 Partial capture
08-07 04:11 80m - / - DO1BOC +1 / - 9 Partial capture
08-07 03:57 80m - / -8 DO1ID +7 / - 5 ✓ Closing fragment
08-07 03:46 80m - / -1 HI8UD -15 / - 3 Partial capture
08-07 03:31 80m - / - SQ2BXI +18 / - 4 Partial capture
08-07 03:21 80m - / -18 DO1OAS -5 / - 5 Partial capture
08-07 03:15 80m -20 / -15 SQ2BXI +15 / -18 11 Partial capture
08-07 03:14 80m - / -18 DO1OAS -12 / - 6 Partial capture
08-07 03:11 80m -21 / - W5ART - / -10 2 ✓ Closing fragment
08-07 03:02 80m - / -16 UR4SXA +2 / - 4 Partial capture
08-07 03:01 80m - / -11 DL1STG -1 / - 3 ✓ Closing fragment
08-07 03:01 80m - / - UX7QV -3 / - 5 Partial capture
08-07 02:58 80m -18 / - KR4EOD - / -15 2 ✓ Closing fragment
08-07 02:56 80m -17 / - KZ8C -14 / -1 3 ✓ Closing observed
08-07 02:56 80m -22 / - T45FCR - / -3 2 ✓ Closing fragment
08-07 02:55 80m - / -24 DO1OAS -2 / - 4 Partial capture
08-07 02:53 80m -14 / - T42FCR - / +5 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
020130  +2 1225  WC4H DO3KTY R-19
020145 -18 1560  DO3KTY WC4H -24
020200  -2  662  WC4H G8OO JO02
020200  +1 1225  WC4H DO3KTY R-19
020215 -20 1560  DO3KTY WC4H RR73
020230  -3  662  WC4H G8OO JO02
020230  +0 1225  WC4H DO3KTY R-19 (x2)
020300  -5  662  WC4H G8OO JO02
020315 -17 1560  DO3KTY WC4H RR73
020330  +5 1225  WC4H DO3KTY 73
020330  -3  662  WC4H G8OO JO02
020345 -24 1560  KC2RDX WC4H -12
020400  -3  662  WC4H G8OO JO02
020415 -20 1560  KC2RDX WC4H RR73
40m
UTC    dB Audio  Message
041830 -18 1354  WC4H YO6FNF -16
041930 -20 1739  WC4H IU5TUG 73
042200 -14 1351  WC4H YO6FNF -14
042300 -19 1396  WC4H YT5KD JN93
070345 -14 2128  WC4H IZ5SIH JN53 (x2)
030430  -8  805  WC4H R2EC KO82
030830 -15 1395  WC4H PD1WMD JO21 (x4)
024330  -4 2965  WC4H RQ6B KN94
024500 -13  983  WC4H RA6FC LN13
043300 -12 1645  WC4H YO6QDY KN26
015630  -2  356  WC4H DH1KJ -09
60m
UTC    dB Audio  Message
013330 -12 1251  WC4H OZ7FOC -13 (x15)
20m
UTC    dB Audio  Message
054115  -4  462  WC4H IK4LZH JN54 (x2)
054215 -19 1775  WC4H IK7DTM R-18
213615  -1  462  WC4H IK4LZH JN54 (x4)
215945  -5 2671  WC4H DL1R JN58 (x8)
10m
UTC    dB Audio  Message
200645 -20 1793  WC4H XQ3SK -08 (x2)

Decoder S/N history by band

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