EA4D — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IN80

Receiver-side FT8 activity involving EA4D, decoded by SO8OO in southeastern Poland. 3,479 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 25 UTC dates in the available aggregate history. Observed between 2026-06-17 and 2026-09-05.

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 3,479 FT8 messages attributed to EA4D as the transmitting token by decoded message structure across 25 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (53%), followed by 40 m (36%) and 80 m (9%). Several six-hour UTC windows tied for the largest share (49%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10.3 dB.

Overview

3,479
Messages attributed
25
UTC dates decoded
307
Active 15-min windows
-10.3 dB
Estimated median S/N

Bands

80m · 300 60m · 56 40m · 1,268 20m · 1,852 10m · 3
First attributed message: 2026-06-17
Last attributed message: 2026-09-05 04:58 UTC

Observed FT8 message patterns

Attributed sample
3,479 messages
Active dates
25 UTC dates
Estimated median S/N
-10.3 dB
Estimated 10th-90th percentile
-22 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,006, moderate (-15 to -9 dB) 1,073, strong (≥ -8 dB) 1,400.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with EA4D in decoded directed-looking exchanges:

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 EA4D

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
IN80 · 2,452 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,193 km (approx.)
Last such locator decoded
2026-09-05 04:56 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 UTCBandEA4D S/NCounterpartCounterpart S/NMsgsCapture
09-14 19:05 80m - / -22 ON1AEY -9 / - 3 ✓ Closing fragment
09-14 18:55 80m - / -12 DO7RMA +1 / - 7 ✓ Closing fragment
09-14 18:53 80m - / +5 EA5TT -10 / - 2 ✓ Closing fragment
09-05 05:28 40m - / -19 G8OO -14 / - 3 Partial capture
09-05 04:58 40m -24 / - IU3QJF -20 / -13 2 Partial capture
09-05 04:51 40m - / - IC8TEM -2 / - 7 Partial capture
09-05 04:38 40m -18 / - IU8PML -10 / - 2 ✓ Closing observed
09-05 04:28 40m - / -3 DJ2DL -13 / - 3 ✓ Closing fragment
09-05 03:57 40m -18 / - 2M0DZX -20 / -10 11 Partial capture
09-05 02:33 40m - / - UA9SY -6 / - 4 Partial capture
09-05 02:15 40m -20 / -8 RA4AUY -5 / -13 12 ✓ Full exchange observed
09-05 01:50 40m -18 / - OE1AVO - / -11 2 ✓ Closing fragment
09-05 01:45 40m -16 / - PY4VTL - / -14 2 ✓ Closing fragment
09-04 23:26 40m - / -18 DL3HRZ -2 / - 4 ✓ Closing fragment
09-04 23:24 40m - / -4 M9WRL -21 / - 2 Partial capture
09-04 23:24 40m - / -15 UW5IM +1 / - 23 ✓ Closing fragment
09-04 23:19 40m -18 / +4 OS9T -5 / -10 5 ✓ Full exchange observed
09-04 23:16 40m -22 / - R9HEP - / -16 2 Partial capture
09-04 23:09 40m -22 / -8 TC2EYL -6 / -11 5 ✓ Full exchange observed
09-04 22:49 40m -17 / -20 RJ6ON +12 / -12 5 ✓ Full exchange observed
09-04 22:20 40m - / -8 IU0DHV -10 / - 2 ✓ Closing fragment
09-04 21:59 40m - / -11 M0PPT -4 / - 2 ✓ Closing fragment
09-04 20:49 40m - / -20 UN7PPV -15 / - 3 ✓ Closing fragment
09-04 20:46 40m - / 0 F8ADF -10 / - 3 ✓ Closing fragment
09-04 20:38 40m - / -15 SV5BYP -1 / - 3 ✓ Closing fragment
09-04 00:29 40m -3 / - BG0HP - / -14 5 ✓ Closing fragment
09-04 00:25 40m -3 / - N4NF - / - 6 Partial capture
09-04 00:21 40m +1 / - K3UCQ - / -19 7 ✓ Closing fragment
09-04 00:20 40m +3 / - OZ1KZX - / -2 3 ✓ Closing fragment
09-04 00:14 40m -1 / -18 CR7BRV -4 / -14 13 ✓ Full exchange observed
09-04 00:13 40m -5 / -7 UA3PAB -6 / -4 5 ✓ Full exchange observed
09-04 00:07 40m -6 / - W1EQ - / - 12 Partial capture
09-04 00:01 40m -3 / - K6ND - / - 10 Partial capture
09-04 00:00 40m -3 / - N1WI - / -14 3 ✓ Closing fragment
09-03 23:59 40m -4 / - 9K2KU - / - 2 ✓ Closing fragment
09-03 23:55 40m +2 / - PP7GB - / -7 7 ✓ Closing fragment
09-03 23:53 40m -5 / +1 ON1DGN -10 / -1 5 ✓ Full exchange observed
09-03 23:47 40m -4 / - R3PJV - / - 10 Partial capture
09-03 23:43 40m +1 / - RW9ULK - / -13 7 ✓ Closing fragment
09-03 23:40 40m +2 / - KT3S - / - 3 Partial capture
09-03 23:31 40m -5 / - NP4PR - / - 11 Partial capture
09-03 23:25 40m -3 / - SQ6ELQ - / - 12 Partial capture
09-03 23:18 40m -1 / - XQ3SK - / - 8 Partial capture
09-03 23:12 40m +1 / - YC2BUZ - / -10 12 ✓ Closing fragment
09-03 23:10 40m -2 / - DL7EDU - / - 2 ✓ Closing fragment
09-03 23:08 40m -6 / - VA3VPN - / -16 4 ✓ Closing fragment
09-03 23:02 40m -7 / - KZ2I - / - 9 Partial capture
09-03 22:57 40m -5 / - BG0FQU - / -17 7 Partial capture
09-03 22:51 40m -7 / - DF8RU - / - 8 Partial capture
09-03 22:49 40m -1 / -9 G8IHT -4 / -6 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
232915 -24 1608  EA4D DO9FSE JO30
061830 -18 1718  EA4D ON1WFF -22
185045 -11 1000  EA4D F5NNN RR73
185315 -10  564  EA4D EA5TT +05 (x2)
185545  +1 2067  EA4D DO7RMA -12 (x7)
190545 -10 1355  EA4D ON1AEY -22 (x3)
40m 
UTC    dB Audio  Message
045145 -20 1189  CQ EA4D IN80                          a1
045200  +0 2914  EA4D IC8TEM JN70 (x5)
045545 -21 1189  CQ EA4D IN80 (x2)
045815 -24 1189  IU3QJF EA4D -13
045830 -20 1189  EA4D IU3QJF JN65
052030 -13 2328  EA4D G3MOD IO91
052800 -16 1250  EA4D G8OO JO02 (x3)
055900 -15 2328  EA4D G3MOD IO91
20m 
UTC    dB Audio  Message
140730 -22 1879  CQ EA4D IN80 (x3)
141145  -6 1832  EA4D G0WHO IO94 (x3)
141645 -11  806  EA4D IW5ALZ JN53 (x3)
144200 -24 1879  CQ EA4D IN80 (x2)
144315 -17  774  EA4D JA1KDU QM06
144400 -24 1879  EJ3KRM EA4D RR73
031530 -20 1940  EA4D UN6LN -08 (x2)
10m 
UTC    dB Audio  Message
152245  -9 1333  EA4D G8OO R-24 (x3)
112115 -11  589  EA4D UR7INU KN88 (x2)
122815 -21 1843  EA4D RN3QU KO90 (x3)
151930  -7 1606  EA4D F4FSY -15
073245 -14 1760  EA4D RN6MA -14 (x2)
174630  -6  615  EA4D EA4IAQ IM89
161800 -18 1212  EA4D EA8UP +19
173545  -8 1827  EA4D IZ7UIU -19 (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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