EA7AH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM67

Receiver-side FT8 activity involving EA7AH, decoded by SO8OO in southeastern Poland. 2,821 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 57 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-17.

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 2,821 FT8 messages attributed to EA7AH as the transmitting token by decoded message structure across 57 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (79%), followed by 40 m (15%) and 20 m (4%). Most decodes (91%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

2,821
Messages attributed
57
UTC dates decoded
249
Active 15-min windows
-14 dB
Estimated median S/N

Bands

80m · 2,232 40m · 418 20m · 126 10m · 45
First attributed message: 2026-06-07
Last attributed message: 2026-09-17 01:20 UTC

Observed FT8 message patterns

Attributed sample
2,821 messages
Active dates
57 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-22 to -5.1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,081, moderate (-15 to -9 dB) 1,156, strong (≥ -8 dB) 584.

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 EA7AH 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 EA7AH

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
IM67 · 2,243 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,671 km (approx.)
Last such locator decoded
2026-09-17 01:20 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 UTCBandEA7AH S/NCounterpartCounterpart S/NMsgsCapture
09-17 01:19 40m -7 / - AI4ZD - / - 2 Partial capture
09-17 01:16 40m -11 / - KT5OT - / - 2 Partial capture
09-17 00:27 40m -16 / -9 PG7R -9 / -11 2 Partial capture
09-17 00:22 40m -11 / -19 PD0RCQ -10 / -7 5 Partial capture
09-16 01:06 40m -6 / - VO1AW - / 0 3 Partial capture
09-16 01:04 40m -9 / - F8ARK - / - 3 Partial capture
09-16 00:56 40m -8 / - HC3ADX - / -24 3 Partial capture
09-16 00:53 40m -6 / - F8ARK - / - 3 Partial capture
09-16 00:43 40m - / -2 F1PBZ +4 / - 7 Partial capture
09-16 00:43 40m -7 / -20 WZ8S -12 / - 3 ✓ Closing observed
09-16 00:37 40m - / - KB3Z -9 / - 7 Partial capture
09-15 04:03 40m -7 / - K6JW - / - 2 Partial capture
09-15 04:01 40m -6 / - YV5KG - / - 2 Partial capture
09-15 03:58 40m -4 / - YV5KG - / - 3 Partial capture
09-15 03:56 40m 0 / - W1WT - / - 3 Partial capture
09-15 03:54 40m -2 / - YO5ODL - / - 4 Partial capture
09-15 03:52 40m +1 / - PA2MD - / -10 4 ✓ Closing fragment
09-15 03:45 40m -2 / - 9Y4DG - / -13 5 ✓ Closing fragment
09-15 03:38 40m -5 / - NA3M - / - 4 Partial capture
09-15 03:25 40m 0 / -16 R3MW -7 / - 6 ✓ Closing observed
09-15 03:19 40m 0 / +8 MW7RHR +8 / -4 9 ✓ Full exchange observed
09-15 03:12 40m -5 / - KR4LQH - / -3 2 ✓ Closing fragment
09-15 03:02 40m -5 / - PY1USK - / -13 2 ✓ Closing fragment
09-15 02:50 40m -8 / - YO6GLT - / -5 2 ✓ Closing fragment
09-15 02:45 40m -8 / - AA4NP - / - 3 Partial capture
09-15 02:42 40m -8 / - KD4IE - / -10 4 ✓ Closing fragment
09-13 22:50 40m -4 / -20 UN7PPV -9 / -13 13 Partial capture
09-13 22:44 40m -6 / -11 DG6VC -17 / -5 3 ✓ Full exchange observed
09-13 22:31 40m -3 / - KB8QAP - / -16 3 Partial capture
09-13 22:23 40m -6 / -15 EA4HPY -15 / -9 5 ✓ Full exchange observed
09-12 02:17 40m -19 / - WA8CAC - / -1 4 Partial capture
09-12 01:59 40m -15 / - UA9SY -14 / -17 6 Partial capture
09-12 01:30 40m - / - EP2AES -18 / - 2 Partial capture
09-11 02:19 40m -10 / - KN4WOJ - / +1 2 ✓ Closing fragment
09-11 02:16 40m -6 / - VE3WMI - / - 3 Partial capture
09-11 02:14 40m -10 / - WA8CAC - / -10 4 Partial capture
09-11 02:12 40m -10 / -13 RA6FRI +5 / -6 5 ✓ Full exchange observed
09-11 02:11 40m -14 / - KF4AH - / -5 2 ✓ Closing fragment
09-11 02:08 40m -11 / - KC4DPT - / - 2 Partial capture
09-11 02:03 40m -11 / - EW4DX - / - 3 Partial capture
09-11 02:00 40m -5 / - KF9UG - / - 4 Partial capture
09-11 01:57 40m -9 / - KD4IE - / -12 4 Partial capture
09-11 01:54 40m -10 / - ON3ANY - / - 3 Partial capture
09-11 01:46 40m -11 / - KD3CGE - / -11 2 ✓ Closing fragment
09-11 01:41 40m -11 / - LA1SNA - / -18 4 Partial capture
09-11 01:39 40m -10 / - DL9KM - / -8 2 ✓ Closing fragment
09-10 05:15 40m -24 / -1 F1RCQ -6 / +4 7 ✓ Full exchange observed
09-10 05:13 40m - / -11 DL9CZ -18 / - 2 ✓ Closing fragment
09-10 05:01 40m - / - PD2WL -12 / - 3 ✓ Closing fragment
09-09 06:15 40m - / -19 DL3RAJ -4 / - 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
004800 -12  539  CQ EA7AH IM67 (x6)
005600 -15 2588  ON8WR EA7AH RR73
011000 -14 2587  VE3WMI EA7AH IM67
011430 -14 2588  NZ3C EA7AH 73
011600 -13 2588  KT5OT EA7AH IM67 (x2)
011930  -8 2588  AI4ZD EA7AH IM67 (x2)
012030  -9 2588  CQ EA7AH IM67
060715 -10 1682  EA7AH F4MTU RR73
20m 
UTC    dB Audio  Message
103600 -15 1683  CQ EA7AH IM67
103615 +18  462  EA7AH IK4LZH JN54 (x4)
104000 -19 1683  CQ EA7AH IM67
104015 +25  462  EA7AH IK4LZH JN54 (x2)
104130 -16 1683  CQ EA7AH IM67 (x2)
105100 -17 1684  PC2K EA7AH IM67
105215  +3 1581  EA7AH PC2K RR73
105230 -18 1683  PC2K EA7AH 73
105300 -18 1683  CQ EA7AH IM67 (x2)
80m 
UTC    dB Audio  Message
021230 -24  906  DJ7XY EA7AH IM67
021300 -24  907  CQ EA7AH IM67
021415 +18  796  EA7AH UR4SXA -20
021430 -24  908  UR4SXA EA7AH R-02
021445 +20  796  EA7AH UR4SXA RR73
021500 -24  907  UR4SXA EA7AH 73
021615  +0  403  EA7AH IK4LZH JN54 (x4)
021815 -14  908  W1JD EA7AH IM67 (x3)
022015  -7 2803  CQ EA7AH IM67 (x2)
10m 
UTC    dB Audio  Message
183415 -20 1878  CQ EA7AH IM67 (x4)
183615 -17 1889  YO3JR EA7AH IM67 (x4)
183815 -19 1889  PU3JCP EA7AH -22 (x4)
184015 -22 1889  KO4DCR EA7AH IM67 (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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