F4JEJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN09

Receiver-side FT8 activity involving F4JEJ, decoded by SO8OO in southeastern Poland. 238 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-30.

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 238 FT8 messages attributed to F4JEJ as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (43%), followed by 80 m (41%) and 40 m (15%). Most decodes (97%) 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 -6 dB.

Overview

238
Messages attributed
11
UTC dates decoded
30
Active 15-min windows
-6 dB
Estimated median S/N

Bands

80m · 98 40m · 35 20m · 103 10m · 2
First attributed message: 2026-06-08
Last attributed message: 2026-09-30 21:04 UTC

Observed FT8 message patterns

Attributed sample
238 messages
Active dates
11 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-17 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 69, strong (≥ -8 dB) 140.

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 F4JEJ 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 F4JEJ

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
JN09 · 170 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,491 km (approx.)
Last such locator decoded
2026-09-30 21:04 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 UTCBandF4JEJ S/NCounterpartCounterpart S/NMsgsCapture
09-30 21:01 40m +5 / - BD8FOD - / -19 4 Partial capture
09-30 20:57 40m +2 / - VK3BDX - / - 5 Partial capture
09-30 20:55 40m +1 / - 4X1UF - / -15 3 Partial capture
09-30 20:52 40m 0 / - JE1CCD -12 / - 3 ✓ Closing observed
09-30 19:33 80m - / - UA4FKT -4 / - 3 Partial capture
09-30 19:28 80m - / - UA3UBV -11 / - 2 Partial capture
09-30 19:27 80m -11 / -24 UA4FKT -2 / -18 9 Partial capture
09-30 19:26 80m -8 / - DO1BOC - / -8 2 ✓ Closing fragment
09-30 19:25 80m - / -4 HB3YOY -14 / - 7 Partial capture
09-30 19:22 80m -7 / -6 OE3OOG +2 / -13 7 ✓ Full exchange observed
09-30 19:21 80m - / - DL8TV -7 / - 3 Partial capture
09-30 19:19 80m -10 / -5 DK4RH -8 / -2 4 ✓ Full exchange observed
09-30 19:16 80m -8 / - F6FHZ - / -21 3 Partial capture
09-30 19:15 80m -6 / - DO7MEW - / -15 2 ✓ Closing fragment
09-30 19:13 80m - / - OH3CD -4 / - 2 Partial capture
09-30 19:12 80m -10 / +3 F5PBG -7 / -3 5 ✓ Full exchange observed
09-30 19:08 80m - / - DL8TV -3 / - 4 Partial capture
09-30 19:08 80m - / - F4LZZ -15 / - 2 Partial capture
09-30 19:08 80m - / - RA2FCF -11 / - 2 Partial capture
09-30 16:52 80m -12 / - YT6AAA - / - 5 Partial capture
09-30 16:51 80m -8 / - RK6C - / - 2 Partial capture
09-30 16:36 80m -17 / -9 9A3TGT +1 / - 7 Partial capture
09-30 16:19 80m -16 / - OH7MA - / - 6 Partial capture
09-30 16:15 80m -16 / -19 OE3CQB -1 / - 4 ✓ Closing observed
09-30 16:11 80m -20 / -8 LA9GX +2 / -2 6 ✓ Full exchange observed
09-28 19:58 40m +4 / - JA6CNL - / - 13 Partial capture
09-28 19:29 40m -5 / - BD8FOD - / - 7 Partial capture
08-05 19:24 20m -1 / - JA7QOA - / - 3 ✓ Closing fragment
08-05 18:28 20m - / - EA5DQW -11 / - 2 Partial capture
08-05 18:27 20m - / - PD2WL -15 / - 9 Partial capture
08-05 18:22 20m - / -10 F4NKF -6 / - 5 ✓ Closing fragment
08-05 18:22 20m - / - IK4LZH -10 / - 2 Partial capture
08-05 18:17 20m - / -5 F4JJS/P 0 / - 3 ✓ Closing fragment
08-05 18:11 20m - / - EA3HMM 0 / - 4 Partial capture
08-04 15:08 20m - / -4 RX3ASQ -17 / - 2 Partial capture
07-22 16:31 20m -16 / - 4X5PB - / -13 15 Partial capture
07-22 16:28 20m -19 / - TK5NJ - / +1 3 Partial capture
07-22 16:27 20m -14 / - 4X5PB - / - 2 Partial capture
07-20 20:16 80m -12 / - YO6LM +7 / - 3 ✓ Closing observed
07-12 19:28 20m +10 / -1 JA6TXU -10 / -6 5 Partial capture
07-12 19:22 20m +8 / - R2AL +4 / +6 5 Partial capture
07-12 19:20 20m +6 / -8 BA5AN -17 / -16 4 ✓ Full exchange observed
07-11 20:41 80m - / - R7BI 0 / - 5 Partial capture
07-11 20:39 80m 0 / - EA3CU -16 / -7 4 ✓ Closing observed
07-11 20:37 80m +6 / -5 DL5DQZ +5 / -5 5 ✓ Full exchange observed
07-11 20:37 80m - / - R7BI -2 / - 3 Partial capture
07-11 20:34 80m +4 / -2 DL9KM -3 / -7 7 ✓ Full exchange observed
07-11 20:33 80m +2 / -6 SP9UPH +21 / +3 5 ✓ Full exchange observed
07-11 20:32 80m - / - R7BI -1 / - 5 Partial capture
07-11 20:31 80m -6 / -2 HB9MZI -13 / - 4 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
205230  -2  601  JE1CCD F4JEJ JN09
205415 -12  371  F4JEJ JE1CCD RR73
205500  +1  601  4X1UF F4JEJ JN09 (x3)
205715  -1  601  VK3BDX F4JEJ JN09 (x5)
210115  +5  601  BD8FOD F4JEJ JN09 (x4)
210445  -8  601  VK3BDX F4JEJ JN09
80m 
UTC    dB Audio  Message
192945  -4 1060  F4JEJ UA4FKT R-24
192945 -15 1526  F4JEJ HB3YOY R-04
193000  -8 1060  CQ F4JEJ JN09 (x2)
193045  +3 1060  F4JEJ UA4FKT LO23
193100 -10 1060  PJ2/W4IPC F4JEJ -11
193115  -2 1040  F4JEJ 9A60CBM R-03
193200  -7 1060  CQ F4JEJ JN09 (x2)
193245  -4 2374  F4JEJ IQ4JO JN63
193300 -12 1060  CQ F4JEJ JN09
193315  -2 1060  F4JEJ UA4FKT LO23 (x2)
193345 -16 1240  F4JEJ DL0RDG JO64
193415 -11 1484  F4JEJ UA4FKT LO23
20m 
UTC    dB Audio  Message
182515  -9  461  F4JEJ IK4LZH JN54
182745 -14 1325  F4JEJ PD2WL JO22 (x3)
182845 -12  593  F4JEJ EA5DQW IM99
182915 -16 1325  F4JEJ PD2WL JO22 (x3)
183015 -10  593  F4JEJ EA5DQW IM99
183045 -11 1325  F4JEJ PD2WL JO22 (x3)
192400  -7  591  JA7QOA F4JEJ JN09 (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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