EA3CU — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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

Receiver-side FT8 activity involving EA3CU, decoded by SO8OO in southeastern Poland. 1,960 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 63 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-19.

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 1,960 FT8 messages attributed to EA3CU as the transmitting token by decoded message structure across 63 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (41%), followed by 20 m (30%) and 80 m (17%). The busiest six-hour window was 05:00-11:00 UTC, containing 36% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

1,960
Messages attributed
63
UTC dates decoded
276
Active 15-min windows
-12 dB
Estimated median S/N

Bands

80m · 339 60m · 70 40m · 163 20m · 592 10m · 796
First attributed message: 2026-06-07
Last attributed message: 2026-10-19 05:31 UTC

Observed FT8 message patterns

Attributed sample
1,960 messages
Active dates
63 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-19 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 516, moderate (-15 to -9 dB) 831, strong (≥ -8 dB) 613.

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 EA3CU 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 EA3CU

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 · 1,154 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,727 km (approx.)
Last such locator decoded
2026-10-19 05:30 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 UTCBandEA3CU S/NCounterpartCounterpart S/NMsgsCapture
10-20 07:18 40m - / -14 F4JAK -10 / - 2 ✓ Closing fragment
10-20 07:17 40m - / -5 GJ0KYZ -10 / - 2 ✓ Closing fragment
10-19 13:55 10m - / -3 CN8WK +7 / - 2 ✓ Closing fragment
10-19 05:30 60m -12 / - DL6NDN +1 / - 3 Partial capture
10-19 05:28 60m -14 / -5 DG4HAD -11 / - 3 ✓ Closing observed
10-19 05:26 60m -13 / - K4KEW - / - 3 Partial capture
10-19 05:22 60m -6 / -9 EB1LA -3 / - 5 ✓ Full exchange observed
10-19 05:21 60m -8 / -4 DL9KM -11 / -6 5 ✓ Full exchange observed
10-19 05:20 60m -7 / -12 F6JON -7 / 0 5 ✓ Full exchange observed
10-19 05:18 60m -9 / 0 HA8RC -10 / -2 5 ✓ Full exchange observed
10-19 05:17 60m -10 / - F4HSB - / 0 3 ✓ Closing fragment
10-19 05:14 60m -4 / -4 DL2FAG -2 / -4 5 ✓ Full exchange observed
10-19 05:11 60m -9 / +6 IT9JNR +2 / -4 6 ✓ Full exchange observed
10-19 05:09 60m -7 / -5 HA7UL -4 / -1 5 ✓ Full exchange observed
10-19 05:08 60m -8 / +3 IK1WGX -16 / +5 5 ✓ Full exchange observed
10-19 05:06 60m -6 / -3 OV9A -12 / 0 5 ✓ Full exchange observed
10-19 02:58 40m -17 / - EG46PPA - / - 3 Partial capture
10-16 02:00 40m -10 / - 8P6ET - / - 4 Partial capture
10-16 01:55 80m - / -4 SM7TZK +9 / - 3 ✓ Closing fragment
10-16 01:39 60m -8 / -11 4X1GA -10 / -1 7 ✓ Full exchange observed
10-16 01:36 60m -10 / - VP2MAW - / -15 3 ✓ Closing fragment
10-14 07:51 40m - / -16 SP1MGM -18 / - 2 ✓ Closing fragment
10-14 02:01 40m -14 / - VP9/K0PJH - / - 4 Partial capture
10-14 01:59 40m -5 / - YU65AEC - / - 3 Partial capture
10-14 01:57 40m -1 / - R6DOB/M - / - 3 Partial capture
10-09 19:49 40m -8 / - VK7AC - / - 7 Partial capture
10-09 19:47 40m -10 / - MJ9JSY - / - 4 Partial capture
10-09 19:43 40m -16 / - VK6DW - / - 3 Partial capture
10-09 19:38 40m -18 / - HS0ZOY - / - 4 Partial capture
10-09 19:35 40m -18 / +2 II5GG +10 / +1 5 ✓ Full exchange observed
10-09 19:31 40m -12 / -12 EX7CQ -13 / -14 7 ✓ Full exchange observed
10-09 18:58 40m -11 / - EX7CQ - / - 3 Partial capture
10-09 18:56 40m -14 / -5 HB9ELE +18 / - 4 ✓ Closing observed
10-09 18:54 40m -14 / - TF4M - / +1 3 Partial capture
10-09 18:41 60m -11 / -8 DK3RV -8 / - 3 ✓ Closing observed
10-09 18:39 60m -7 / -4 IW5DNZ -1 / +7 5 ✓ Full exchange observed
10-09 18:37 60m -8 / -2 DF7RG 0 / - 5 ✓ Closing observed
10-09 18:36 60m -11 / +9 EA6ZS -2 / 0 5 ✓ Full exchange observed
10-09 06:49 40m - / - DL1TJ -15 / - 5 Partial capture
10-09 06:45 40m - / +1 I4BUQ -7 / - 5 ✓ Closing fragment
10-07 07:19 40m - / -2 F1DXP -6 / - 2 ✓ Closing fragment
10-07 06:46 60m - / -2 4U1A +3 / - 2 ✓ Closing fragment
09-11 07:41 40m - / -10 DL7GAL -4 / - 2 ✓ Closing fragment
09-11 07:39 40m - / -2 PI4DX -4 / - 2 ✓ Closing fragment
09-09 20:04 80m - / -13 IS0LAY -8 / - 2 ✓ Closing fragment
09-09 20:01 80m -20 / 0 II0CDS -2 / +10 5 ✓ Full exchange observed
09-09 16:18 60m - / -10 Z68PX 0 / - 2 ✓ Closing fragment
09-04 20:17 40m -6 / - RI1FJL - / - 4 Partial capture
09-04 20:04 40m -7 / - RI1FJL - / -24 9 Partial capture
08-31 17:23 20m -6 / -11 R1LP +1 / +5 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
075230 -18 1644  EA3CU SP1MGM RR73
020030 -13 1352  8P6ET EA3CU JN11 (x4)
025815 -16 1507  EG46PPA EA3CU JN11 (x3)
030745  -4 1498  SP2MGR/P EA3CU JN11
071700  -8  941  EA3CU GJ0KYZ -05 (x2)
071830 -10  710  EA3CU F4JAK -14 (x2)
075730 -13 2579  EA3CU MW3FLI +00
080130 -17 2425  EA3CU IZ8XXE RR73
10m 
UTC    dB Audio  Message
111515 -16 1031  AP2TN EA3CU JN11
134300 -12  754  VP8NO EA3CU JN11 (x3)
135200 -20 1119  ON3ONX EA3CU R+06 (x2)
144445 -15  933  T77R EA3CU JN11 (x3)
113015 -18 1063  V51WH EA3CU JN11 (x2)
124300 -21 1768  EA3CU <...> -01
132915 -21 2133  EA3CU 5Z4RS +06
135515  +6 2470  EA3CU CN8WK -03 (x2)
60m 
UTC    dB Audio  Message
052215 -13 1471  EA3CU DL9KM 73
052245  -4 1057  EB1LA EA3CU JN11
052400  -1  788  EA3CU EB1LA -09
052415  -9  988  EB1LA EA3CU R+13
052430  -5  788  EA3CU EB1LA RR73
052445  -6  988  EB1LA EA3CU 73
052645 -12 1318  K4KEW EA3CU JN11 (x3)
052815 -14 1318  DG4HAD EA3CU JN11
052830 -14 1234  EA3CU DG4HAD -05 (x2)
053045 -11  870  DL6NDN EA3CU JN11
053100  +1 2058  EA3CU DL6NDN +16
053115 -13  870  DL6NDN EA3CU R+13
80m 
UTC    dB Audio  Message
200145 -20 1423  II0CDS EA3CU JN11
200200  -1  702  EA3CU II0CDS +00
200215 -24 1423  II0CDS EA3CU R+10
200230  -3  702  EA3CU II0CDS RR73
200245 -17 1423  II0CDS EA3CU 73
200415  -6 1671  EA3CU IS0LAY -13 (x2)
015530  +9  783  EA3CU SM7TZK -04 (x3)
20m 
UTC    dB Audio  Message
171600  -3 1392  9M2DGA EA3CU JN11
171730  -6 1425  YB6XFI EA3CU JN11 (x6)
172045 +19  484  EA3CU SV9/PD9VOG -17
172100  -6 1425  <...> EA3CU R+11
172300  -7 1425  R3IX EA3CU 73
172345  +1 1226  EA3CU R1LP KO59
172400  -4 1425  R1LP EA3CU +05
172415  +2 1226  EA3CU R1LP R-11
172430  -8 1426  R1LP EA3CU RR73
172445  +1 1226  EA3CU R1LP 73

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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