JK1KDD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan

Receiver-side FT8 activity involving JK1KDD, decoded by SO8OO in southeastern Poland. 174 related FT8 messages, 14 CQ messages, observed on 40m, 20m, 10m, across 34 UTC dates. Heard between 2026-05-23 and 2026-08-21.

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

174
Related messages
14
CQ messages
34
UTC dates heard
-4 dB
Mean decoder S/N

Bands

First seen: 2026-05-23
Last seen: 2026-08-21 17:10 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 UTCBandJK1KDD S/NCounterpartCounterpart S/NMsgsCapture
08-21 19:09 40m - / - DN4TG +2 / - 2 Partial capture
08-17 18:27 20m - / -16 MM0GTU -4 / - 3 ✓ Closing fragment
08-16 17:57 20m - / - UA3ZQN -6 / - 2 Partial capture
08-10 21:17 20m - / -9 EA6UE -8 / - 2 ✓ Closing fragment
08-04 17:38 20m - / -9 HA8TI -7 / - 3 ✓ Closing fragment
07-27 18:48 20m - / -4 LX1TI +12 / - 4 ✓ Closing fragment
07-26 18:50 20m - / - PA8DC -14 / - 2 Partial capture
07-26 18:41 20m - / - DL1R -6 / - 8 Partial capture
07-26 18:34 20m - / - RZ4AZ -5 / - 2 Partial capture
07-24 19:30 20m - / -8 GI4SNA -20 / - 2 Partial capture
07-18 19:31 20m - / -20 SV5BYP -16 / - 3 ✓ Closing fragment
07-16 20:06 20m - / -16 IT9BCC -10 / - 2 ✓ Closing fragment
07-12 18:24 20m - / -15 SP6DT -7 / - 3 ✓ Closing fragment
07-12 17:54 20m - / -19 E77FN -16 / - 2 ✓ Closing fragment
07-07 18:31 20m - / -15 DL8HXP -3 / - 3 ✓ Closing fragment
07-05 18:43 20m - / - DL1R -2 / - 7 Partial capture
07-05 18:22 20m - / -18 R2FDU -8 / - 2 ✓ Closing fragment
07-05 18:17 20m - / -18 DL6NDN +6 / - 4 ✓ Closing fragment
07-05 18:13 20m - / -18 Z61DX -4 / - 2 ✓ Closing fragment
06-19 19:38 20m - / -12 TJ1GD/P -10 / - 2 ✓ Closing fragment
06-18 18:39 20m - / -6 UD3T +4 / - 2 ✓ Closing fragment
06-18 18:39 20m - / - YO9DEH +6 / - 2 Partial capture
06-16 18:24 20m -13 / - Z34CMF - / - 2 Partial capture
06-12 19:39 20m -6 / -20 EA1B -1 / - 4 ✓ Closing observed
06-12 19:24 20m - / -11 E70A +18 / - 2 ✓ Closing fragment
06-12 18:59 20m - / -15 RK3IR -10 / - 2 ✓ Closing fragment
06-11 17:44 20m -13 / -15 YM4KT +10 / -14 4 ✓ Full exchange observed
06-11 10:19 20m - / -17 UD8S -16 / - 13 Partial capture
06-10 20:05 20m - / -19 A61OK -7 / - 6 Partial capture
06-07 18:53 20m -15 / - SQ2OMK - / -14 2 Partial capture
06-07 18:47 20m -12 / -16 R6DXP +7 / -14 5 ✓ Full exchange observed
06-07 18:43 20m -6 / -16 R7BI +3 / - 5 ✓ Closing observed
06-07 18:42 20m -12 / -15 UA3IVF -8 / -16 3 ✓ Full exchange observed
06-07 18:24 20m - / -13 IQ9BH -9 / - 2 Partial capture
06-07 18:21 20m - / +1 IK8PPG +13 / - 3 ✓ Closing fragment
06-07 18:11 20m - / -17 YO9PH +4 / - 2 ✓ Closing fragment
06-06 19:44 20m - / -19 HB10GBT +5 / - 3 Partial capture
06-06 19:44 20m -12 / - F5OYA/P - / -15 2 Partial capture
06-06 19:37 20m -7 / -16 OH3EZ -9 / - 6 ✓ Closing observed
06-05 20:50 20m -4 / - 9H2TM - / - 2 Partial capture
06-04 20:10 20m -9 / - OJ0Z - / - 3 Partial capture
06-04 20:05 20m -7 / - OJ0Z - / - 3 Partial capture
06-01 18:53 20m -14 / - Z33B - / - 2 Partial capture
06-01 18:31 20m -16 / 0 BI1AFK -8 / - 2 ✓ Closing observed
05-31 18:43 20m -12 / - <...> - / -13 2 Partial capture
05-31 18:35 20m - / - OE2LEX -10 / - 2 Partial capture
05-31 17:50 20m -12 / - BG4OOO - / -2 2 ✓ Closing fragment
05-31 17:44 20m - / - IV3VER -6 / - 2 Partial capture
05-31 17:38 20m - / -14 R6DJR +2 / - 2 ✓ Closing fragment
05-29 19:09 20m - / -8 R8LCP -5 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
190930  +2 2508  JK1KDD DN4TG JO52 (x2)
20m
UTC    dB Audio  Message
185015 +12  452  JK1KDD LX1TI RR73
184815  -8 2957  JK1KDD SV1TNK KM17
173800  -9 1848  JK1KDD HA8TI JN96 (x3)
183300  -7  525  JK1KDD CR7BRV IM58
184400  -6 2670  JK1KDD DL1R JN58
184900 -10 2493  JK1KDD OK2CNI RR73
211700  -6 1923  JK1KDD EA6UE -09 (x2)
175700  -5 2526  JK1KDD UA3ZQN KO90 (x2)
182730  -1 1970  JK1KDD MM0GTU -16 (x3)
10m
UTC    dB Audio  Message
102400 -21 1767  JK1KDD BI8SSW OL15 (x2)

Decoder S/N history by band

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