K4EM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States

Receiver-side FT8 activity involving K4EM, decoded by SO8OO in southeastern Poland. 108 related FT8 messages, 3 CQ messages, observed on 40m, 20m, 10m, across 16 UTC dates. Heard between 2026-05-28 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

108
Related messages
3
CQ messages
16
UTC dates heard
-4 dB
Mean decoder S/N

Bands

20m 40m 10m
First seen: 2026-05-28
Last seen: 2026-08-23 10:54 UTC

Frequent QSO partners observed at SO8OO

Stations K4EM worked most often, as logged from our receiver:

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 UTCBandK4EM S/NCounterpartCounterpart S/NMsgsCapture
08-23 12:53 10m - / - F4VTR -10 / - 2 Partial capture
08-09 00:23 40m - / -12 YO6LM -4 / - 2 Partial capture
08-09 00:17 40m - / -20 CN8NS -24 / - 2 Partial capture
07-26 16:46 20m - / -13 G4YLJ -20 / - 2 Partial capture
07-23 10:51 20m - / - DK3HV 0 / - 2 Partial capture
07-23 10:37 20m - / -15 TK5K +2 / - 2 ✓ Closing fragment
07-09 23:40 40m - / -16 IQ4JO +6 / - 2 ✓ Closing fragment
07-09 23:34 40m - / - PC2J +1 / - 2 Partial capture
06-30 08:37 20m - / -14 UA3GDJ -5 / - 3 ✓ Closing fragment
06-30 08:34 20m - / -7 DL3BUA -10 / - 5 ✓ Closing fragment
06-30 08:32 20m - / - DH5NC -20 / - 2 Partial capture
06-30 08:23 20m - / -2 IZ1DSJ -19 / - 4 Partial capture
06-30 08:23 20m - / - DL1R -1 / - 5 ✓ Closing fragment
06-30 08:23 20m - / -12 IZ8EYN -5 / - 4 Partial capture
06-24 19:39 10m - / -11 IZ4FUA +4 / - 3 ✓ Closing fragment
06-20 01:08 20m -2 / - SP2RG - / -11 2 Partial capture
06-20 00:57 20m -4 / - VC3F - / - 14 Partial capture
06-04 10:32 20m - / -7 UN0GY -10 / - 3 ✓ Closing fragment
06-01 09:26 20m - / -20 R7OV -1 / - 6 ✓ Closing fragment
05-28 10:04 20m - / - PD0OKP -6 / - 2 ✓ Closing fragment
05-28 10:02 20m -11 / -7 R6LKV +10 / - 4 ✓ Closing observed
05-28 09:57 20m - / -7 F4NGR -10 / - 2 Partial capture
05-28 09:53 20m -13 / - YB8APP - / -6 2 ✓ Closing fragment
05-28 09:52 20m - / - IU8ADS +11 / - 10 Partial capture
05-28 09:51 20m -12 / - IT9LCJ -2 / +5 3 ✓ Closing observed
05-28 09:47 20m - / -10 EB4DMH -4 / - 3 ✓ Closing fragment
05-28 09:43 20m - / -15 EA7TS -9 / - 2 ✓ Closing fragment
05-28 09:41 20m - / -20 IK4LZH +14 / - 5 ✓ Closing fragment
05-28 09:38 20m - / -16 MW7IHR -6 / - 4 Partial capture
05-28 09:31 20m - / -13 MW7IHR -11 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
193915  +7 2113  K4EM IZ4FUA JN45 (x3)
164630 -16 1623  K4EM DH1KJ JN48
125330 -12  371  K4EM F4VTR JN25 (x2)
40m 
UTC    dB Audio  Message
014545 -15 1783  K4EM EW6DM RR73
233415  +0 2664  K4EM PC2J JO22 (x2)
233445  +6 2721  K4EM IQ4JO JN63
233845  +2 2665  K4EM PC2J JO22
234045  +5 2721  K4EM IQ4JO R-16 (x2)
234445 -10 2420  K4EM IZ8DBJ JN70
001700 -23 1665  K4EM CN8NS -20 (x2)
002315  -5 2494  K4EM YO6LM -12 (x2)
002545  -8  697  K4EM IU0NAD JN62
20m 
UTC    dB Audio  Message
083700  -8 1929  K4EM UA3GDJ KO92 (x3)
084100 -13 2061  K4EM F6IPV -13
115800 -23 2341  K4EM ON3BM JO10
114645 -12 2617  K4EM F4ENR R-18
113745 -10 2657  K4EM 9A2AA -19
103700  +3  533  K4EM TK5K -15 (x2)
105100  +1  599  K4EM DK3HV JO31 (x2)
164600 -20 1578  K4EM G4YLJ -13 (x2)
110600 -10 1353  K4EM R7MP LN17
111130  -2  365  K4EM R3KF RR73

Decoder S/N history by band

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