EA3HKA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: JN11

Receiver-side FT8 activity involving EA3HKA, decoded by SO8OO in southeastern Poland. 6,253 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 76 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-05.

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 6,253 FT8 messages attributed to EA3HKA as the transmitting token by decoded message structure across 76 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (89%), followed by 10 m (11%) and 40 m (1%). Most decodes (86%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

6,253
Messages attributed
76
UTC dates decoded
524
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-05 16:36 UTC

Observed FT8 message patterns

Attributed sample
6,253 messages
Active dates
76 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-19 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,401, moderate (-15 to -9 dB) 2,087, strong (≥ -8 dB) 2,765.

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 EA3HKA

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
JN11 · 5,172 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,727 km (approx.)
Last such locator decoded
2026-08-31 17:46 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 UTCBandEA3HKA S/NCounterpartCounterpart S/NMsgsCapture
10-05 16:34 40m -16 / - G0OFD -9 / -3 4 Partial capture
10-03 15:55 40m - / -2 M8MFU -18 / - 2 Partial capture
10-03 15:46 40m - / - SQ1ES -10 / - 2 Partial capture
10-03 15:06 40m - / -6 DL9BUS -7 / - 4 ✓ Closing fragment
10-03 14:30 40m - / +4 HB9ELE +5 / - 6 ✓ Closing fragment
10-03 14:30 40m - / -1 I4BUQ -12 / - 3 ✓ Closing fragment
09-16 15:19 40m - / -22 SV1DKR -14 / - 3 Partial capture
09-16 15:15 40m - / - TA3STR -7 / - 2 Partial capture
09-16 15:01 40m - / +1 OE8PIT +3 / - 3 Partial capture
09-16 14:59 40m - / - S51PV -11 / - 6 Partial capture
09-04 15:19 40m - / - S51PV -9 / - 7 Partial capture
08-31 17:33 20m -1 / -13 5Z4VJ -10 / 0 4 ✓ Full exchange observed
08-30 14:51 20m 0 / - OE1KTU - / -11 4 Partial capture
08-30 14:43 20m -2 / - IU0QVJ - / -24 2 Partial capture
08-30 14:41 20m 0 / - SP9IMY - / -1 2 ✓ Closing fragment
08-30 14:27 20m -3 / - HA5OKE - / - 5 ✓ Closing fragment
08-30 14:20 20m 0 / - EP2AES - / - 2 Partial capture
08-30 14:16 20m 0 / - PA4AM - / -22 2 ✓ Closing fragment
08-30 14:05 20m +8 / -14 UA3SCU +6 / -14 5 Partial capture
08-30 13:04 20m - / -4 IU8WRA +2 / - 2 ✓ Closing fragment
08-29 16:26 20m +1 / - DC2MA - / -4 7 ✓ Closing fragment
08-29 16:20 20m -2 / -1 EA5HM -1 / +1 5 ✓ Full exchange observed
08-28 14:52 20m -2 / - OE3JBS - / -17 2 ✓ Closing fragment
08-28 14:50 20m +5 / - SP1TP - / -7 3 ✓ Closing fragment
08-28 14:47 20m - / - R9OFU -4 / - 3 Partial capture
08-28 14:39 20m +8 / - SP9OZ - / -2 3 ✓ Closing fragment
08-28 14:24 20m +9 / -6 RA6OV +2 / - 4 ✓ Closing observed
08-28 14:15 20m -6 / - DL5KMR - / -22 3 ✓ Closing fragment
08-27 13:24 20m 0 / - UA1AOF - / -13 2 Partial capture
08-27 13:20 20m -6 / -7 PC9F +7 / - 6 ✓ Full exchange observed
08-25 16:35 20m -4 / - SM0TPH - / -10 2 ✓ Closing fragment
08-25 16:29 20m -1 / - YO2LFP - / -5 3 ✓ Closing fragment
08-25 14:40 20m -2 / - CT1END/P - / -15 2 Partial capture
08-25 14:36 20m -2 / - OK2PKT - / -24 5 Partial capture
08-25 14:32 20m -2 / - SP3ADA - / -17 2 ✓ Closing fragment
08-25 14:18 20m -5 / - RX6DA - / -9 3 ✓ Closing fragment
08-25 13:33 20m -10 / - MW7RHR -11 / +10 3 ✓ Full exchange observed
08-25 13:23 20m - / -15 M3TZX -9 / - 4 ✓ Closing fragment
08-25 13:15 20m -10 / - PD3JW - / -11 5 Partial capture
08-25 13:11 20m - / - PD8XXX -12 / - 2 Partial capture
08-25 13:07 20m -10 / -21 M0PFX -9 / -19 7 ✓ Full exchange observed
08-25 12:59 20m - / - M0PFX -7 / - 5 Partial capture
08-24 17:33 20m - / - EA5IHI +2 / - 11 Partial capture
08-24 17:29 20m +3 / - SQ3LVF - / -15 2 ✓ Closing fragment
08-24 17:15 20m +4 / -23 F1SZC +5 / +3 9 ✓ Full exchange observed
08-24 17:15 20m +5 / - HA1TAB - / -12 2 ✓ Closing fragment
08-24 16:59 20m -1 / - DL1WDS - / -24 2 ✓ Closing fragment
08-24 16:44 20m -2 / -15 EC3A +3 / -7 5 ✓ Full exchange observed
08-24 16:11 20m +2 / - R9SB - / - 2 Partial capture
08-24 15:56 20m -3 / - TA1MB - / -7 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
143530 -13  777  EA3HKA F5CUN JN26
150630  -6 1000  EA3HKA DL9BUS JO31 (x4)
154615 -12 1540  EA3HKA SQ1ES JO72 (x2)
155215 -11  783  EA3HKA PD5MSC JO22
155415  -7  738  EA3HKA G6WCX R-20
155515 -19 1356  EA3HKA M8MFU JO01 (x2)
163445  -9 2351  EA3HKA G0OFD JO02
163600 -16 2351  G0OFD EA3HKA -03
163615  -8 2351  EA3HKA G0OFD JO02 (x2)
20m
UTC    dB Audio  Message
173400  +2 2097  5Z4VJ EA3HKA RR73
173430  +1 2096  CQ EA3HKA JN11 (x2)
173600 -10 2097  BG5JGG EA3HKA +00
174100  -5 2097  CQ EA3HKA JN11 (x11)
10m
UTC    dB Audio  Message
150730 -23 1877  CQ EA3HKA JN11 (x4)
151215 -22 1877  DO1ANB EA3HKA -09
151345 -21 1878  CQ EA3HKA JN11 (x7)
141345 -24 1673  EA3HKA M8FQT IO93
103130 -20 2170  CQ EA3HKA JN11
104545  -1 2926  EA3HKA DL7FE JN49

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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