EA3CFV — 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 EA3CFV, decoded by SO8OO in southeastern Poland. 447 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 39 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-21.

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 447 FT8 messages attributed to EA3CFV as the transmitting token by decoded message structure across 39 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (81%), followed by 40 m (12%) and 10 m (6%). Most decodes (69%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.2 dB.

Overview

447
Messages attributed
39
UTC dates decoded
107
Active 15-min windows
-7.2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-10-21 19:47 UTC

Observed FT8 message patterns

Attributed sample
447 messages
Active dates
39 UTC dates
Estimated median S/N
-7.2 dB
Estimated 10th-90th percentile
-17 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 70, moderate (-15 to -9 dB) 126, strong (≥ -8 dB) 251.

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 EA3CFV

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 · 249 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,727 km (approx.)
Last such locator decoded
2026-10-21 19:47 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 UTCBandEA3CFV S/NCounterpartCounterpart S/NMsgsCapture
10-22 15:16 40m - / -9 PD7JLP -8 / - 2 ✓ Closing fragment
10-22 14:57 40m - / -19 DG1HBA -5 / - 3 ✓ Closing fragment
10-22 14:52 40m - / -1 G0FHT -19 / - 2 ✓ Closing fragment
10-22 13:16 40m - / -8 DK1XAM -8 / - 2 ✓ Closing fragment
10-22 12:52 40m - / 0 F4DIA -13 / - 2 ✓ Closing fragment
10-21 19:42 40m -18 / - SQ9SET - / - 3 Partial capture
10-21 19:40 40m -20 / - PA2WDR - / -12 2 Partial capture
10-21 19:39 40m -14 / - EX7CQ - / - 2 Partial capture
10-21 19:37 40m - / -2 G3YDY -12 / - 2 ✓ Closing fragment
10-21 19:34 40m - / -15 EX7CQ -3 / - 2 Partial capture
10-20 20:01 40m -8 / -20 JF2XGF -3 / -13 6 ✓ Full exchange observed
10-20 19:53 40m - / -10 IQ4JHE -4 / - 2 ✓ Closing fragment
10-20 19:44 40m -18 / -13 F5AOL +4 / - 2 Partial capture
10-20 05:45 40m - / +8 DF7QR 0 / - 2 Partial capture
10-19 09:39 40m - / - DL6KBV -15 / - 4 Partial capture
10-16 19:25 40m -11 / -13 LA1PHA -7 / - 2 Partial capture
10-16 19:01 40m - / -7 ON1EHF -1 / - 2 ✓ Closing fragment
10-16 18:52 40m - / -3 EA7LIC -8 / - 2 ✓ Closing fragment
10-15 06:37 40m - / -9 Z61DX -4 / - 5 Partial capture
10-15 06:22 40m - / -5 ON3THC -16 / - 2 ✓ Closing fragment
10-14 19:30 40m - / -19 DM5KM +3 / - 2 ✓ Closing fragment
10-14 19:16 40m - / -8 DM1SV -4 / - 3 Partial capture
10-14 19:13 40m - / -13 PH2M +6 / - 3 ✓ Closing fragment
10-14 19:02 40m -9 / -4 F5MOO +10 / - 3 ✓ Closing observed
10-14 09:49 40m - / -19 IZ3EAW -13 / - 7 ✓ Closing fragment
10-14 06:07 40m - / -17 SV7FDA -8 / - 2 Partial capture
10-13 14:31 40m - / -19 SV1ENG -18 / - 2 ✓ Closing fragment
10-13 14:29 40m - / -13 PA1GUZ -7 / - 2 ✓ Closing fragment
10-11 05:38 40m - / +2 IU7VOL -6 / - 2 ✓ Closing fragment
10-11 05:32 40m - / -1 ON5HE -6 / - 2 ✓ Closing fragment
10-11 05:04 40m - / -17 DD1OO -8 / - 3 ✓ Closing fragment
10-09 05:17 40m - / -15 OH5VT +2 / - 2 ✓ Closing fragment
10-07 16:32 10m - / -16 LZ2IP -12 / - 2 ✓ Closing fragment
10-06 06:12 80m - / -17 DG7CF -2 / - 4 ✓ Closing fragment
10-06 06:08 80m - / -19 DG7CF -4 / - 2 Partial capture
10-06 06:07 80m - / +1 AM5CV -10 / - 2 Partial capture
10-05 19:41 40m -10 / -8 IZ4EFV +2 / -12 3 ✓ Full exchange observed
10-05 19:32 40m -9 / - PD2CDC -9 / -14 4 ✓ Closing observed
10-05 19:27 40m -8 / -18 PD1DP +2 / - 3 ✓ Closing observed
10-05 19:20 40m - / -14 TA2AI -6 / - 2 ✓ Closing fragment
10-05 19:15 40m - / -5 IQ0AAX -18 / - 3 ✓ Closing fragment
10-05 19:02 40m -17 / -6 GI0VAB -14 / - 3 ✓ Closing observed
10-05 14:02 40m - / -6 IQ8DO -18 / - 2 ✓ Closing fragment
10-05 07:36 40m - / - HB9ACA -10 / - 2 ✓ Closing fragment
10-05 05:54 40m - / -14 OH3JF +10 / - 2 ✓ Closing fragment
10-04 13:39 40m - / -22 PD1DTH -16 / - 2 ✓ Closing fragment
10-04 13:36 40m - / -14 G3VCQ -16 / - 2 ✓ Closing fragment
10-04 12:29 40m - / -22 LZ2TDF -2 / - 4 Partial capture
10-03 10:35 40m - / -20 IQ4JO -8 / - 2 ✓ Closing fragment
10-02 08:26 40m - / -6 TK5NJ -20 / - 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
194315 -13  876  SQ9SET EA3CFV JN11
194745 -14  818  OE2CAL EA3CFV JN11
125245 -14 1208  EA3CFV F4DIA +00 (x2)
131615  -7 2689  EA3CFV DK1XAM -08 (x2)
143215 -13 1772  EA3CFV M0OXO -22
145245 -20 1247  EA3CFV G0FHT -01 (x2)
145730  -4 1428  EA3CFV DG1HBA -19 (x3)
150445  +8  973  EA3CFV YO2UKG RR73
151615 -10 1601  EA3CFV PD7JLP -09 (x2)
10m
UTC    dB Audio  Message
155930 -20 1488  EA3CFV SV3CKF -01
185845  -2 2869  EA3CFV DF1VV +09 (x2)
190530 -17 1992  EA3CFV F4HTA +00
193230 -18 1025  EA3CFV HB9BNV 73
195215 -17  837  EA3CFV UA4FKT LO23
174545 -16  822  EA3CFV M0BEW RR73
163215 -12 1188  EA3CFV LZ2IP -16 (x2)
80m
UTC    dB Audio  Message
041215  -4  645  EA3CFV 9A2TN RR73
041400 -16 1760  EA3CFV 9A60CBM -16
042300  +0 2039  EA3CFV HF100PKP -14
042930 -15 1698  EA3CFV IR7MGGC -09 (x2)
043800 -24 2399  EA3CFV S57WO -04 (x2)
060730  -9  558  EA3CFV AM5CV +01 (x2)
060830  -5 1358  EA3CFV DG7CF -19 (x6)
20m
UTC    dB Audio  Message
192030 -12 1682  EA3CFV M7BUY RR73
192045  -8 1682  M7BUY EA3CFV 73
192215  +5  699  II7MGBA EA3CFV JN11 (x2)
193415  -5  994  IZ1CRA EA3CFV JN11 (x4)
193815 -10 1786  YO9ADN EA3CFV JN11 (x3)
194130  -3  675  PA2HD EA3CFV JN11 (x3)
194400  +1  873  9A6GUO EA3CFV JN11

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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