K4F — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States

Receiver-side FT8 activity involving K4F, decoded by SO8OO in southeastern Poland. 491 related FT8 messages, 15 CQ messages, observed on 40m, 20m, across 9 UTC dates. Heard between 2026-06-14 and 2026-06-23.

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

491
Related messages
15
CQ messages
9
UTC dates heard
-5 dB
Mean decoder S/N

Bands

First seen: 2026-06-14
Last seen: 2026-06-23 01:14 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 UTCBandK4F S/NCounterpartCounterpart S/NMsgsCapture
06-23 03:13 40m - / - IU5TUG -6 / - 2 Partial capture
06-22 20:50 20m - / -8 WP4U +2 / - 4 ✓ Closing fragment
06-22 20:19 20m - / - DL1ZU -12 / - 2 Partial capture
06-22 05:02 20m - / - EA5D -13 / - 2 Partial capture
06-22 04:37 40m - / -12 OE9DAI -12 / - 5 ✓ Closing fragment
06-22 04:36 40m - / - F4NGR -19 / - 3 Partial capture
06-22 04:31 40m - / -14 DL3OCF -4 / - 5 Partial capture
06-22 04:26 40m - / -6 F8NHF +2 / - 5 ✓ Closing fragment
06-22 04:21 40m - / -15 DL3OCF -4 / - 4 Partial capture
06-22 04:20 40m - / - DL2RPN +4 / - 7 Partial capture
06-21 04:02 20m - / -11 LZ2KV -10 / - 2 Partial capture
06-21 02:33 40m - / -24 PE1NPS -13 / - 2 Partial capture
06-21 02:26 40m - / -15 DK7ZT -14 / - 2 ✓ Closing fragment
06-21 02:19 40m - / - YO6LM -6 / - 2 ✓ Closing fragment
06-21 02:08 40m - / - PA3DZM -18 / - 2 Partial capture
06-21 02:07 40m - / -12 DK7ZT -12 / - 4 Partial capture
06-21 02:05 40m - / -25 YO6LM -18 / - 2 Partial capture
06-21 02:04 40m - / - IQ4JO 0 / - 2 ✓ Closing fragment
06-20 04:20 20m - / - EB3JT +13 / - 5 Partial capture
06-20 04:12 20m - / -14 UA4FEN +10 / - 3 ✓ Closing fragment
06-20 04:09 20m -13 / - F4IIX - / -21 4 ✓ Closing fragment
06-20 04:07 20m - / -12 UA4FEN +15 / - 3 Partial capture
06-19 23:47 20m - / -16 RZ1OA -8 / - 4 ✓ Closing fragment
06-19 23:37 20m - / -13 N3FMC -16 / - 5 Partial capture
06-19 19:06 20m - / - F5PBG -9 / - 3 Partial capture
06-19 04:57 40m - / -12 DK7ZT -15 / - 4 Partial capture
06-19 04:57 40m - / - G3YPD -10 / - 2 Partial capture
06-19 04:55 40m - / -16 F1MXE -10 / - 7 Partial capture
06-19 04:53 40m - / - F4BYA -2 / - 4 Partial capture
06-19 04:47 40m - / -16 DK7ZT -9 / - 3 Partial capture
06-19 04:47 40m - / -15 F8MRQ -6 / - 3 ✓ Closing fragment
06-19 03:47 40m - / -10 DK7ZT -5 / - 4 Partial capture
06-19 03:43 40m - / -5 DK7ZT -10 / - 3 Partial capture
06-19 03:43 40m - / - DM4TRX -1 / - 3 Partial capture
06-19 03:40 40m - / - F5RRS -8 / - 3 Partial capture
06-19 03:35 40m - / -6 DK7ZT -9 / - 3 Partial capture
06-19 03:34 40m - / - EA5TE 0 / - 3 Partial capture
06-19 03:33 40m - / - F5PBG -1 / - 3 Partial capture
06-19 03:29 40m - / -8 DK7ZT -7 / - 3 Partial capture
06-19 03:29 40m - / -1 F5MNW +4 / - 4 ✓ Closing fragment
06-19 03:25 40m - / -3 DK7ZT -2 / - 3 Partial capture
06-19 03:23 40m - / - LZ1ST +3 / - 3 Partial capture
06-19 03:20 40m - / - F5PBG 0 / - 3 Partial capture
06-19 03:15 40m - / -11 DK7ZT -7 / - 3 Partial capture
06-19 03:14 40m - / - ON4MAP -20 / - 3 Partial capture
06-19 03:06 40m - / - F4BYA +5 / - 7 Partial capture
06-19 03:05 40m - / - F8NHF +5 / - 5 Partial capture
06-19 03:04 40m - / - PA3DZM -3 / - 2 Partial capture
06-19 03:03 40m - / - F5RRS -2 / - 3 Partial capture
06-19 03:02 40m - / - DK7UY +6 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
043645 -17 1508  K4F F4NGR JN33 (x2)
043745 -10 2176  K4F OE9DAI JN47
043815 -21 1508  K4F F4NGR JN33
043815 -15 2176  K4F OE9DAI JN47 (x4)
044245  -8 2701  K4F IK1QLD JN34
013215 -16 1168  K4F EA6AOD -17
014145 -19 1873  K4F LZ3GH KN32
014645 -12 2591  K4F F1PBZ -08
030915 -17 2138  K4F DL8TT JO30
031345  -8  980  K4F IU5TUG JN53 (x2)
20m
UTC    dB Audio  Message
042145 +12 2832  K4F EB3JT JN01 (x3)
040245 -12 2483  K4F LZ2KV KN33 (x2)
041045 -21 1359  K4F UR5EDX R-12
050215 -16 1250  K4F EA5D JN00 (x2)
201915 -12  900  K4F DL1ZU JO40 (x2)
205045  +0 2811  K4F WP4U FK68 (x4)
234045 -19 1793  K4F M7CLI -15

Decoder S/N history by band

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