KD4EBL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM18

Receiver-side FT8 activity involving KD4EBL, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-16.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 37 FT8 messages attributed to KD4EBL as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (81%), followed by 20 m (16%) and 80 m (3%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (65%); the estimated median was -13 dB.

Overview

37
Messages attributed
7
UTC dates decoded
12
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-09-16 02:07 UTC

Observed FT8 message patterns

Attributed sample
37 messages
Active dates
7 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-18 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 2.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to KD4EBL

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
FM18 · 21 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,390 km (approx.)
Last such locator decoded
2026-09-15 23:31 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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 UTCBandKD4EBL S/NCounterpartCounterpart S/NMsgsCapture
10-02 02:49 160m - / -15 DL1RWN +13 / - 3 Partial capture
10-02 00:37 60m - / -12 ON1JP -20 / - 2 Partial capture
10-02 00:35 60m - / -6 GW4FRX +1 / - 2 ✓ Closing fragment
10-02 00:33 60m - / -12 EA4GRZ -7 / - 3 Partial capture
10-02 00:30 60m - / -1 VA3DIF -18 / - 2 ✓ Closing fragment
10-02 00:27 60m - / - W1SBW -17 / - 2 ✓ Closing fragment
10-02 00:24 60m - / -12 OK1XD -12 / - 2 ✓ Closing fragment
10-01 23:30 60m - / -18 OK2ZDL -17 / - 4 ✓ Closing fragment
10-01 23:19 60m - / - LA9JKA -13 / - 6 Partial capture
10-01 23:16 60m - / - DK5WO -8 / - 3 Partial capture
10-01 23:15 60m - / - DL1DBR -14 / - 2 Partial capture
10-01 23:13 60m - / - S56EPX -6 / - 5 Partial capture
10-01 23:12 60m - / - EB5BZM -17 / - 7 Partial capture
10-01 23:09 60m - / - DL1DBR -14 / - 2 Partial capture
10-01 22:53 60m - / -11 ON6ZK -9 / - 8 ✓ Closing fragment
10-01 21:54 60m - / -13 F5MYK -10 / - 4 ✓ Closing fragment
10-01 21:53 60m - / +3 VE1YX -8 / - 2 ✓ Closing fragment
10-01 00:35 60m - / - F5MYK -9 / - 2 Partial capture
09-30 07:48 60m - / -18 F6AOJ -10 / - 4 ✓ Closing fragment
09-30 06:56 60m - / - G7GXK -14 / - 2 ✓ Closing fragment
09-30 06:25 60m - / -20 PC6A -6 / - 4 ✓ Closing fragment
09-30 05:14 60m - / -22 OM0UA -6 / - 3 ✓ Closing fragment
09-30 05:12 60m - / -18 PC2J -4 / - 3 ✓ Closing fragment
09-30 05:09 60m - / -8 IZ0MQN -17 / - 5 ✓ Closing fragment
09-30 05:09 60m - / -10 IZ8VYU -3 / - 3 ✓ Closing fragment
09-30 05:04 60m - / -15 SP1MGM +1 / - 3 ✓ Closing fragment
09-30 05:04 60m - / -15 SP9JBX +3 / - 4 ✓ Closing fragment
09-30 05:01 60m - / -25 SQ2WHH -10 / - 5 ✓ Closing fragment
09-30 05:00 60m - / +4 DL1RNW +4 / - 2 ✓ Closing fragment
09-30 04:54 60m - / -22 SV8MQP -6 / - 5 ✓ Closing fragment
09-30 04:51 60m - / -15 EA8WU -10 / - 2 ✓ Closing fragment
09-30 04:49 60m - / -16 EA3NE +2 / - 3 ✓ Closing fragment
09-30 04:46 60m - / -5 SM0EJR -8 / - 2 Partial capture
09-30 04:44 60m - / -9 EA3CUU 0 / - 3 ✓ Closing fragment
09-30 04:41 60m - / -23 EA5IT -17 / - 3 ✓ Closing fragment
09-30 04:39 60m - / -19 OH6JD +1 / - 3 ✓ Closing fragment
09-30 04:36 60m - / -15 OE2EJN -11 / - 4 ✓ Closing fragment
09-30 04:33 60m - / -16 OM3WBY -11 / - 2 ✓ Closing fragment
09-30 04:32 60m - / - IZ0HEI -11 / - 2 Partial capture
09-30 04:25 60m - / -13 DL5MG -1 / - 4 ✓ Closing fragment
09-30 04:18 60m - / -16 DH3YAK -12 / - 4 ✓ Closing fragment
09-30 04:08 60m - / -16 DG9RAB -15 / - 4 Partial capture
09-30 04:08 60m - / -7 OM5FM +10 / - 2 ✓ Closing fragment
09-30 03:49 60m - / -14 DL5CK +1 / - 4 ✓ Closing fragment
09-30 03:49 60m - / -12 S55DX +16 / - 6 Partial capture
09-30 03:46 60m - / -15 YO3CUS +12 / - 3 ✓ Closing fragment
09-30 03:40 60m - / -20 OM8GT -14 / - 2 ✓ Closing fragment
09-30 03:28 60m - / -23 I3QDK +10 / - 2 Partial capture
09-30 03:24 60m - / -5 UT5ECZ +3 / - 2 ✓ Closing fragment
09-30 03:22 60m - / -22 IZ7DJS +1 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
024945 +12 2439  KD4EBL DL1RWN -15 (x3)
035645 -15 1116  KD4EBL W3LL 73
60m
UTC    dB Audio  Message
233145 -18 2096  KD4EBL OK2ZDL RR73
002430 -12 1095  KD4EBL OK1XD -12 (x2)
002715 -19 1525  KD4EBL W1SBW +15 (x2)
003015 -17 1989  KD4EBL VA3DIF -01 (x2)
003315  -7  453  KD4EBL EA4GRZ -12 (x3)
003545  +1  852  KD4EBL GW4FRX -06 (x2)
003715 -20 1519  KD4EBL ON1JP -12 (x2)
003745 -12 2102  KD4EBL I1JQJ JN35
80m
UTC    dB Audio  Message
020700 -24 1792  6Y5HN KD4EBL R-08
004115  +6 2162  KD4EBL UT7EV -18 (x3)
40m
UTC    dB Audio  Message
230230  -5 2150  KD4EBL M7HET IO91 (x3)
231230 -12 2149  KD4EBL DA0O JO30
231300 -13 1786  KD4EBL EA8AR IL18
231300 -13 2149  KD4EBL DA0O JO30
231330 -12 1786  KD4EBL EA8AR R-07 (x2)
231700  -9 1126  KD4EBL G7TPR IO94
231700  -9 2149  KD4EBL DA0O JO30
231730  -5 1127  KD4EBL G7TPR IO94
233045 -16 2148  HK3LUI KD4EBL RR73
233115 -22 2148  CQ KD4EBL FM18                        a1
233145 -18 2148  N4UCU KD4EBL -04 (x2)
20m
UTC    dB Audio  Message
193430 -13 1611  KD4EBL 2E0EUI IO91 (x3)
193600  +8 2491  KD4EBL G0DEL -14 (x2)
193700 -18 1612  KD4EBL 2E0EUI IO91 (x3)
194430  -3  965  KD4EBL M9KTM IO91 (x5)
195730  -1  621  KD4EBL M9OOS R-15 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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