F4EZJ — 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: France Most frequent locator attributed to this token: JN05

Receiver-side FT8 activity involving F4EZJ, decoded by SO8OO in southeastern Poland. 2,395 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 10m, across 42 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-11-06.

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 2,395 FT8 messages attributed to F4EZJ as the transmitting token by decoded message structure across 42 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (50%), followed by 80 m (37%) and 60 m (9%). Most decodes (71%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +4 dB.

Overview

2,395
Messages attributed
42
UTC dates decoded
275
Active 15-min windows
+4 dB
Estimated median S/N

Bands

First attributed message: 2026-06-15
Last attributed message: 2026-11-06 04:27 UTC

Observed FT8 message patterns

Attributed sample
2,395 messages
Active dates
42 UTC dates
Estimated median S/N
+4 dB
Estimated 10th-90th percentile
-9 to +14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 201, strong (≥ -8 dB) 2,152.

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 F4EZJ

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
JN05 · 1,751 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,626 km (approx.)
Last such locator decoded
2026-11-06 04:26 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 UTCBandF4EZJ S/NCounterpartCounterpart S/NMsgsCapture
11-06 04:26 160m +10 / - WT3Q -14 / -5 4 ✓ Closing observed
11-06 04:25 160m +10 / - W1KOK - / -7 2 ✓ Closing fragment
11-06 04:23 160m +8 / - VE2GCE - / -15 4 ✓ Closing fragment
11-06 04:20 160m +10 / - N1MRE - / -16 2 ✓ Closing fragment
11-06 04:17 160m +8 / - KB1EFS - / - 2 Partial capture
11-06 04:09 80m 0 / - N3SD - / -9 4 ✓ Closing fragment
11-06 04:04 80m - / -1 KA3HED -16 / - 2 Partial capture
11-06 04:00 80m +10 / 0 N1WI -17 / 0 6 ✓ Full exchange observed
11-06 03:58 80m +14 / 0 KZ2N -8 / - 3 Partial capture
11-06 03:57 80m +10 / - WB8TH - / -19 3 ✓ Closing fragment
11-06 03:55 80m +9 / - KA3HED - / - 2 Partial capture
11-06 03:53 80m +10 / - N3SD - / -25 6 Partial capture
11-06 03:51 80m +12 / - KC1VOA - / -16 3 ✓ Closing fragment
11-06 03:49 80m +9 / - K8BL - / -14 3 ✓ Closing fragment
11-06 03:47 80m +10 / - NI0G - / 0 2 Partial capture
11-05 21:50 80m +2 / - BG5FCH - / - 2 Partial capture
11-05 21:27 80m -1 / - BD3MN - / -12 6 ✓ Closing fragment
11-05 21:04 80m -4 / - JJ3JHP - / - 4 Partial capture
11-05 20:40 80m 0 / 0 5B4AMX -10 / -7 5 ✓ Full exchange observed
11-05 20:37 80m 0 / - JJ3JHP - / - 5 Partial capture
11-05 20:25 80m - / -5 YO2CR -8 / - 2 Partial capture
11-05 20:22 80m - / -7 YO2CR -6 / - 2 Partial capture
11-05 20:20 80m - / - OZ5THY -3 / - 4 Partial capture
11-05 20:18 80m +10 / - JE8LWZ - / -19 2 ✓ Closing fragment
11-05 20:16 80m - / -5 YO2CR -5 / - 2 Partial capture
11-05 20:13 80m +12 / - JA5AUC - / - 4 Partial capture
11-05 19:25 80m +10 / - 4X5JK - / -15 2 ✓ Closing fragment
11-05 19:11 80m - / - SP5JMA +14 / - 2 Partial capture
11-05 19:08 80m - / - DA6NEL +8 / - 3 Partial capture
11-05 19:07 80m +9 / - BD1TX - / -25 4 ✓ Closing fragment
11-05 17:54 80m +11 / -18 JE6WOQ -9 / -13 5 ✓ Full exchange observed
11-05 17:51 80m +8 / - JA3BFL - / - 4 Partial capture
11-05 17:46 80m - / - DO9SAM +8 / - 2 Partial capture
11-05 17:44 80m +6 / -1 UA4FKT -1 / -5 6 ✓ Full exchange observed
11-05 17:08 80m +12 / -20 JA9RRH -19 / -14 5 ✓ Full exchange observed
11-05 17:02 80m - / - IU8WPS -15 / - 2 Partial capture
11-05 17:00 80m +8 / -16 JA6VQA -23 / -16 3 ✓ Full exchange observed
11-05 16:59 80m +2 / - JO4IPQ - / -9 2 ✓ Closing fragment
11-05 16:59 80m - / - GM5AIW +2 / - 15 Partial capture
11-05 06:48 80m -2 / - K0JV - / -21 4 ✓ Closing fragment
11-05 06:44 80m -5 / - K3MEC - / -7 3 ✓ Closing fragment
11-05 06:37 80m -5 / - W4WHQ - / -22 3 ✓ Closing fragment
11-05 06:34 80m 0 / - LU8ENU - / -25 3 ✓ Closing fragment
11-05 06:16 80m +4 / - N8GNA - / - 6 Partial capture
11-05 06:14 80m +5 / - KD5NSK - / -21 3 ✓ Closing fragment
11-05 06:08 80m +5 / - NF3R - / -11 3 ✓ Closing fragment
11-05 06:03 80m +5 / - K8OOK - / - 7 Partial capture
11-05 06:00 80m +6 / - K9ON - / - 6 Partial capture
11-05 05:36 80m +8 / - N5LUC - / - 6 Partial capture
11-05 05:26 80m +9 / - W4MAA - / - 12 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
042100 +12  711  CQ DX F4EZJ JN05 (x3)
042215 -18 2372  F4EZJ DJ7XY JO31
042230 +10  711  CQ DX F4EZJ JN05
042300  +7  711  VE2GCE F4EZJ JN05 (x4)
042500  +9  711  W1KOK F4EZJ R-07 (x2)
042600  +7  711  WT3Q F4EZJ JN05 (x2)
042645 -14  498  F4EZJ WT3Q RR73
042700 +12  711  WT3Q F4EZJ 73
80m
UTC    dB Audio  Message
035845 +14 2745  KZ2N F4EZJ JN05
040000  -9 2894  F4EZJ KZ2N +00
040015  +9 2745  N1WI F4EZJ JN05
040030  -8 2894  F4EZJ KZ2N +00
040045 +11 2745  N1WI F4EZJ JN05
040100 -17 2298  F4EZJ N1WI +00
040115 +12 2745  N1WI F4EZJ R+00 (x3)
040445 -12 1957  F4EZJ KA3HED -01 (x2)
040915  +0 1368  N3SD F4EZJ JN05 (x4)
60m
UTC    dB Audio  Message
151700  +5  515  BG2GWN F4EZJ JN05
162345  +0  980  BA1PK F4EZJ JN05 (x3)
162530  -6 1567  F4EZJ IK4CBO JN54 (x2)
163415  +2 2379  KH8A F4EZJ JN05 (x8)
163800 -13  930  F4EZJ GB1RBL +01
10m
UTC    dB Audio  Message
125145  +2  512  LU7XZ F4EZJ 73
125230 -24 1941  F4EZJ F4FSY -11
125830  -3  512  YG2CBI F4EZJ JN05 (x3)
083515 -11 2505  ZS5HR F4EZJ -13 (x2)
084330 -10  596  <...> F4EZJ JN05 (x8)
40m
UTC    dB Audio  Message
030430 +20 2841  AB9PM F4EZJ JN05
032015 +26 2967  OA4ENG F4EZJ JN05 (x5)
032345  +3  358  IZ5MMT/P F4EZJ JN05 (x5)
032915  +4 2901  SP1550SK F4EZJ JN05 (x4)

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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