EA5JKT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM99

Receiver-side FT8 activity involving EA5JKT, decoded by SO8OO in southeastern Poland. 1,576 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 67 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.

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 1,576 FT8 messages attributed to EA5JKT as the transmitting token by decoded message structure across 67 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (45%), followed by 80 m (25%) and 60 m (20%). Most decodes (71%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

1,576
Messages attributed
67
UTC dates decoded
263
Active 15-min windows
-15 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-09-19 22:45 UTC

Observed FT8 message patterns

Attributed sample
1,576 messages
Active dates
67 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-21 to -2.9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 738, moderate (-15 to -9 dB) 473, strong (≥ -8 dB) 365.

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 EA5JKT

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
IM99 · 1,123 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,129 km (approx.)
Last such locator decoded
2026-09-19 22:39 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 UTCBandEA5JKT S/NCounterpartCounterpart S/NMsgsCapture
09-19 22:44 40m -11 / -7 IK0CHU +4 / - 5 ✓ Closing observed
09-19 22:41 40m - / -13 TA2EE -21 / - 2 ✓ Closing fragment
09-19 22:39 40m -14 / - RK4HS -18 / -22 3 ✓ Closing observed
09-19 22:31 40m -16 / - UB6HTV - / - 2 Partial capture
09-19 21:55 80m -11 / -22 RA3RDN +2 / -15 5 ✓ Full exchange observed
09-19 21:52 80m -16 / -11 UF4S +2 / - 4 ✓ Closing observed
09-19 21:51 80m -11 / - II9IAGM - / - 2 Partial capture
09-19 21:18 40m -13 / -24 RU5A -1 / -12 6 Partial capture
09-19 21:09 40m -10 / -22 UB6LDM +8 / - 7 ✓ Closing observed
09-19 21:05 40m -13 / -14 R3KON +8 / -17 9 ✓ Full exchange observed
09-19 20:58 40m -14 / - EB5URT - / -4 7 Partial capture
09-19 20:56 40m -14 / - R3UDU - / - 3 Partial capture
09-19 20:54 40m -13 / - JA8EPO - / - 3 Partial capture
09-19 20:49 40m -15 / - JA8EPO - / - 4 Partial capture
09-19 20:39 40m -18 / - RM5C - / -26 3 Partial capture
09-19 20:17 40m - / -19 R5CB -10 / - 2 ✓ Closing fragment
09-18 05:50 40m - / -18 EH3ST -19 / - 2 ✓ Closing fragment
09-18 05:22 40m -22 / - W3L - / 0 2 Partial capture
09-18 05:15 40m -18 / - KM4KDF - / -18 2 ✓ Closing fragment
09-17 22:01 40m -9 / -10 NQ3N -10 / -7 2 Partial capture
09-17 22:00 40m -20 / - II4IANT - / -10 2 Partial capture
09-12 19:56 80m -13 / - UB3ADO/P - / -7 3 Partial capture
09-12 19:51 60m - / -18 SP2OSA -8 / - 2 ✓ Closing fragment
09-12 19:49 60m - / 0 EC3A -15 / - 4 Partial capture
09-11 21:49 60m - / - DL7ACA -2 / - 5 Partial capture
09-11 21:46 60m -16 / - II8IHBC - / -9 4 Partial capture
09-11 21:45 60m -16 / - II7IABB - / - 2 Partial capture
09-11 21:42 40m - / -18 DK5EO -8 / - 8 Partial capture
09-11 21:39 40m -14 / -4 II0IHMG -4 / - 4 Partial capture
09-11 21:37 40m -16 / -9 II6IGTO -22 / - 3 Partial capture
09-11 21:35 40m -16 / - II9IAGM - / - 4 Partial capture
09-11 21:10 40m - / -12 II9IAGM -6 / - 3 Partial capture
09-11 20:52 60m - / -4 EC3A -17 / - 2 Partial capture
09-11 20:48 60m -20 / -13 UD6AWH -12 / - 6 ✓ Closing observed
09-11 20:48 60m - / - DL7ACA +4 / - 11 Partial capture
09-11 04:02 80m -10 / - ZS6BUN - / -24 10 ✓ Closing fragment
09-11 04:00 80m -14 / - N2SU - / - 4 Partial capture
09-11 03:58 80m -5 / - CT2HEX - / -6 2 ✓ Closing fragment
09-11 03:55 80m -1 / - TM35DCM - / -12 2 Partial capture
09-11 03:52 80m -8 / +8 HB9NBN -14 / -12 4 ✓ Full exchange observed
09-11 03:48 80m -12 / -5 OZ6MM -10 / -9 8 ✓ Full exchange observed
09-11 03:44 80m -11 / - HF100PKP - / - 8 Partial capture
09-11 03:40 80m -16 / - W3GO - / -13 2 ✓ Closing fragment
09-11 03:39 80m -22 / - KP2B - / -17 3 ✓ Closing fragment
09-11 03:36 80m -7 / - SN100PKP - / -10 2 Partial capture
09-11 03:33 80m -3 / -14 R7DX -7 / -12 7 ✓ Full exchange observed
09-11 03:31 80m -14 / -9 SN100PKP -1 / -11 3 Partial capture
09-11 03:29 80m -12 / - CT7ARQ -24 / -6 3 ✓ Closing observed
09-11 03:28 80m - / - G3WGC -11 / - 3 Partial capture
09-11 03:27 80m -16 / 0 HA3TBL 0 / 0 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
212115  -2 1871  EA5JKT RU5A -24 (x2)
223115 -14 2047  UB6HTV EA5JKT IM99 (x2)
223930 -13 2047  RK4HS EA5JKT IM99 (x2)
224045 -18 1609  EA5JKT RK4HS 73
224115 -22  234  EA5JKT TA2EE R-13 (x2)
224415  +5 1329  EA5JKT IK0CHU JN62 (x3)
224530 -11 2047  IK0CHU EA5JKT RR73
224545  +2 1329  EA5JKT IK0CHU 73
225200  +5  900  EA5JKT IR0IADU +08
80m
UTC    dB Audio  Message
195815 -14 1999  UB3ADO/P EA5JKT R-07
195945 -18 1999  EH3ST EA5JKT IM99
214930  -6 2015  EA7L EA5JKT RR73
215145 -10 2016  II9IAGM EA5JKT IM99 (x2)
215245 -16 2016  UF4S EA5JKT IM99
215300  -3 1087  EA5JKT UF4S -11
215300 +14 1031  EA5JKT SP100PKP -15
215330  +4 1086  EA5JKT UF4S RR73 (x2)
215515 -14 2016  RA3RDN EA5JKT IM99
215530  +2 2015  EA5JKT RA3RDN -22
215545 -10 2016  RA3RDN EA5JKT R-15
215630  +2 2015  EA5JKT RA3RDN RR73
215645  -8 2016  RA3RDN EA5JKT 73
60m
UTC    dB Audio  Message
214815 -13 1476  II8IHBC EA5JKT IM99 (x2)
214900  +1 2058  EA5JKT DL7ACA JO40 (x5)
194830 -18 1062  EA5JKT II0IHMG -13
194930 -12 1641  EA5JKT EC3A +00
195000  -4 2771  EA5JKT II7IABB -07
195100 -18 1641  EA5JKT EC3A +01
195130 -10 1535  EA5JKT SP2OSA -18 (x2)
195230 -13 1641  EA5JKT EC3A +02 (x2)
20m
UTC    dB Audio  Message
230615 -15 1969  EA5JKT 5Z4VJ R-17 (x2)
070200  -9 2112  EA5JKT PD5RAY -17
080200 -10 2057  RG8G EA5JKT IM99 (x12)
10m
UTC    dB Audio  Message
141700 -24 1753  EA5JKT 7Q5MP -03
141445 -12  956  EA5JKT RA4FEQ -08
142430 -11  803  EA5JKT R50RKZ RR73 (x4)
091045 -23 2068  CR5VP EA5JKT IM99 (x3)

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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