YC2ULK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Indonesia Locator transmitted in a decoded message: OI52

Receiver-side FT8 activity involving YC2ULK, decoded by SO8OO in southeastern Poland. 1,022 related FT8 messages, 57 CQ messages, observed on 40m, 20m, 10m, across 57 UTC dates. Heard between 2026-05-26 and 2026-08-23.

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

1,022
Related messages
57
CQ messages
57
UTC dates heard
-9 dB
Mean decoder S/N

Bands

First seen: 2026-05-26
Last seen: 2026-08-23 21:14 UTC

Activity Heatmap

Locator transmitted by YC2ULK

Approximate centre of OI52, decoded 2026-08-19 23:26 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 UTCBandYC2ULK S/NCounterpartCounterpart S/NMsgsCapture
08-23 23:11 40m - / -10 DK7ZT -6 / - 3 Partial capture
08-23 23:10 40m - / -22 DK9WI -1 / - 2 Partial capture
08-23 23:07 40m - / -17 IT9VCE -3 / - 3 ✓ Closing fragment
08-23 23:06 40m - / -19 DM2AB +8 / - 8 Partial capture
08-23 22:58 40m - / -12 DK7ZT +4 / - 4 Partial capture
08-23 21:17 40m - / - DA1EA +10 / - 4 Partial capture
08-23 14:07 10m - / -9 UA6ADA -10 / - 2 ✓ Closing fragment
08-23 14:06 10m - / - DN9OPA -17 / - 5 Partial capture
08-23 14:03 10m - / - DN9SHA -11 / - 3 Partial capture
08-21 17:13 20m - / - PD4RJ -16 / - 2 Partial capture
08-21 14:06 10m - / - DN9CHV -18 / - 5 Partial capture
08-20 00:12 20m - / -14 YV5IAL -8 / - 2 ✓ Closing fragment
08-19 23:26 20m -18 / -5 J68TT +4 / -5 4 ✓ Full exchange observed
08-09 23:17 40m - / -19 EA3AAY -21 / - 8 ✓ Closing fragment
08-09 23:16 40m - / -7 IU4PSV -14 / - 4 ✓ Closing fragment
08-09 23:16 40m - / - PD0IFI -3 / - 5 Partial capture
08-08 21:04 40m - / - UI7N -4 / - 2 Partial capture
08-07 23:20 40m - / -11 9K2GR -19 / - 2 ✓ Closing fragment
08-07 18:19 20m - / -10 G5MJF -21 / - 3 Partial capture
08-07 18:17 20m - / - SV5BYP 0 / - 4 Partial capture
08-07 18:14 20m - / -17 GM4CXM 0 / - 2 ✓ Closing fragment
08-05 23:18 40m - / - SQ3MQD -14 / - 4 Partial capture
08-05 23:11 40m - / - DK7UY -9 / - 3 Partial capture
08-05 23:11 40m - / -19 IK2UEC -17 / - 3 ✓ Closing fragment
08-05 23:11 40m - / - PD0IFI -9 / - 9 Partial capture
08-05 23:01 40m - / - PD0IFI -7 / - 4 Partial capture
08-05 23:00 40m - / -18 RD3FY -11 / - 3 ✓ Closing fragment
08-05 22:54 40m - / -13 RX9WM -17 / - 3 Partial capture
08-05 22:52 40m - / - PA1PXL -14 / - 2 Partial capture
08-05 22:43 40m - / -13 SP0DF -18 / - 3 Partial capture
08-05 22:40 40m - / -20 <...> -5 / - 4 Partial capture
08-04 14:22 20m - / -3 GB2CG +4 / - 2 ✓ Closing fragment
08-04 14:08 20m - / -5 LY1BZ -17 / - 3 Partial capture
08-04 13:56 20m - / - F4LNM -20 / - 2 Partial capture
08-04 13:53 20m - / - F1PFU -16 / - 2 Partial capture
08-04 13:51 20m - / - DH2RL -17 / - 5 Partial capture
08-04 13:47 20m - / - PD3LKN -23 / - 2 Partial capture
08-04 13:30 20m - / -16 UT7UJ +2 / - 5 Partial capture
08-04 13:23 20m - / - IU5HIU -7 / - 2 Partial capture
08-04 12:48 20m - / - DL6MRM -19 / - 3 Partial capture
08-04 12:47 20m - / - PG1C -12 / - 5 Partial capture
08-02 23:34 40m - / - IU2VBP -15 / - 4 Partial capture
08-02 12:11 10m - / -12 EA8UP -20 / - 2 ✓ Closing fragment
08-01 23:26 40m - / -10 ER3ZW -14 / - 2 ✓ Closing fragment
08-01 23:17 40m - / +4 DF8RU -5 / - 4 ✓ Closing fragment
08-01 23:16 40m - / - OZ5GW -20 / - 3 Partial capture
08-01 23:12 40m - / - PD1EN -18 / - 5 Partial capture
08-01 23:11 40m - / - PE1NPS -11 / - 5 Partial capture
08-01 23:10 40m - / - DL1AUW -12 / - 4 Partial capture
08-01 23:10 40m - / -20 PA2AZ -4 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
230730  +9 2619  YC2ULK DM2AB R-19
230800  -2  738  YC2ULK IT9VCE R-17
230800  +7 2619  YC2ULK DM2AB R-19
230830  -4  738  YC2ULK IT9VCE 73
230830  +2 1623  YC2ULK DM2AB R-24 (x2)
231000  +1 2228  YC2ULK DK9WI JO30
231000  +3 1687  YC2ULK DM2AB JN49
231030  -3 2228  YC2ULK DK9WI R-22
231130 -13 1906  YC2ULK DK7ZT -10
231200  -5 1103  YC2ULK EA1RT R-17
231200  +3 1906  YC2ULK DK7ZT -10 (x2)
231300 -19 1258  YC2ULK SP8NR R-13
231430  -5 2028  YC2ULK F5HNQ R-12
10m
UTC    dB Audio  Message
140730 -20 1286  YC2ULK DN9CHV JO31 (x3)
140900  +3  902  YC2ULK F4JJS -19
172600 -19 1618  YC2ULK IZ5WTV JN53
140315 -15 1003  YC2ULK DN9SHA JO31 (x3)
140645 -20 2154  YC2ULK DN9OPA JN38 (x2)
140715 -10 2440  YC2ULK UA6ADA R-09 (x2)
140745 -15 2154  YC2ULK DN9OPA JN38 (x3)
20m
UTC    dB Audio  Message
181830  -4 1701  YC2ULK SV5BYP KM46
181900 -22 1671  YC2ULK G5MJF -10 (x3)
232630 -19 1713  J68TT YC2ULK OI52
232645  +4  827  YC2ULK J68TT -05
232700 -16 1713  J68TT YC2ULK R-05
232715  +5  827  YC2ULK J68TT RR73
001015  -9  517  YC2ULK YV5KTM RR73
001245  -8  363  YC2ULK YV5IAL -14 (x2)
171130  -1 1736  YC2ULK TK5AE RR73
171330 -16 1422  YC2ULK PD4RJ JO33
171330 -11 1737  YC2ULK PD0RDD JO22
171430 -15 1422  YC2ULK PD4RJ JO33

Decoder S/N history by band

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