DL3EBJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DL3EBJ, decoded by SO8OO in southeastern Poland. 11,843 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-06.

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 11,843 FT8 messages attributed to DL3EBJ as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (79%), followed by 40 m (21%) and 10 m (0%). Most decodes (55%) 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 -8 dB.

Overview

11,843
Messages attributed
26
UTC dates decoded
830
Active 15-min windows
-8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-11
Last attributed message: 2026-09-06 13:06 UTC

Observed FT8 message patterns

Attributed sample
11,843 messages
Active dates
26 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-17.1 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,904, moderate (-15 to -9 dB) 3,689, strong (≥ -8 dB) 6,250.

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 DL3EBJ

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
JO31 · 9,859 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-09-06 13:06 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 UTCBandDL3EBJ S/NCounterpartCounterpart S/NMsgsCapture
09-06 12:56 40m -18 / - IW2MLJ - / -5 2 ✓ Closing fragment
09-06 12:37 40m - / -18 HA7JLR -4 / - 3 ✓ Closing fragment
09-06 12:08 40m -21 / - M8JJS - / -15 3 Partial capture
09-06 11:27 40m -19 / - G7SQS - / - 2 ✓ Closing fragment
09-06 11:24 40m -21 / - G3TFL - / -10 2 ✓ Closing fragment
09-06 11:19 40m -21 / -7 DL2BI -24 / - 3 ✓ Closing observed
09-06 09:26 40m - / -2 SP6K -9 / - 3 ✓ Closing fragment
09-06 09:21 40m -21 / - M7GOA - / -12 2 Partial capture
09-06 09:06 40m -18 / -8 HA1ZW -10 / - 5 ✓ Closing observed
09-05 19:33 40m -4 / - DL9IX - / -16 2 Partial capture
09-05 19:24 40m -2 / - SA6PWS - / -8 2 ✓ Closing fragment
09-05 19:05 40m 0 / - UB6HTV -6 / +1 4 ✓ Closing observed
09-05 18:53 40m +2 / - F4NKF - / +2 2 ✓ Closing fragment
09-05 18:47 40m -3 / -12 HG6IOM -7 / +2 7 ✓ Full exchange observed
09-05 18:43 40m 0 / - PD0JOY -6 / - 3 ✓ Closing observed
09-05 18:38 40m -2 / -5 DL4ABN +6 / - 5 ✓ Full exchange observed
09-05 18:33 40m -1 / - M0SFW - / +1 3 ✓ Closing fragment
09-05 18:13 40m 0 / - G0SBN - / -9 2 ✓ Closing fragment
09-05 18:10 40m +3 / - OE1AVO 0 / - 5 ✓ Closing observed
09-05 18:08 40m +2 / - G0SBN - / -5 2 Partial capture
09-05 18:06 40m +4 / +3 S57CT +5 / +8 4 ✓ Full exchange observed
09-05 18:04 40m -2 / -14 SP4WSL -3 / -2 5 ✓ Full exchange observed
09-05 18:01 40m - / -9 SP4MPH 0 / - 2 ✓ Closing fragment
09-05 17:50 40m - / -4 LA4O -8 / - 2 Partial capture
09-05 17:37 40m -9 / - IU5JAE -24 / -13 3 ✓ Closing observed
09-05 17:34 40m -2 / -1 PA3ADE -21 / - 2 ✓ Closing observed
09-05 17:31 40m -4 / - EI2KZB - / -9 3 ✓ Closing fragment
09-05 17:22 40m 0 / - EA3HKD - / -6 2 ✓ Closing fragment
09-05 15:16 40m -14 / - PE1KYP - / - 2 ✓ Closing fragment
09-05 12:30 40m -16 / - DM2AL -18 / - 3 ✓ Closing observed
09-05 12:27 40m -18 / - ON5RZ - / - 2 ✓ Closing fragment
09-05 12:22 40m -16 / - M0KDZ - / -6 2 ✓ Closing fragment
09-05 11:43 40m -18 / - DG2LBH - / -14 2 ✓ Closing fragment
09-05 09:53 40m -17 / - DL6REX -19 / - 3 ✓ Full exchange observed
09-05 09:36 40m - / +7 DK8EW -5 / - 3 ✓ Closing fragment
09-05 09:30 40m - / - DM5KK -5 / - 4 ✓ Closing fragment
09-05 09:08 40m -13 / - SP9TEX +2 / +10 3 Partial capture
09-05 09:07 40m -16 / - IZ4AIF -8 / - 2 ✓ Closing observed
09-05 09:05 40m -17 / - ON1DGN - / - 2 ✓ Closing fragment
09-05 08:58 40m - / - HA3HZ -9 / - 2 Partial capture
09-05 08:58 40m - / - IZ4AIF -10 / - 3 Partial capture
09-02 17:42 40m +5 / - DL9TZ - / -1 2 ✓ Closing fragment
09-02 17:37 40m +4 / - ON3PDM -3 / - 3 ✓ Full exchange observed
09-02 17:33 40m -5 / - DL1HKL - / +7 2 ✓ Closing fragment
09-02 17:27 40m - / -12 DL2KBQ +4 / - 4 ✓ Closing fragment
09-02 17:15 40m +2 / - OK2PKT -12 / - 3 ✓ Closing observed
09-02 16:58 40m -2 / -3 IZ3ZMC -13 / -3 7 Partial capture
09-02 16:49 40m +3 / - F5GNR -13 / - 2 ✓ Closing observed
09-02 16:40 40m -5 / - IZ5FSO -9 / 0 3 ✓ Closing observed
09-02 16:34 40m -2 / -16 SP9CXN +4 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
125600 -19 1495  CQ DL3EBJ JO31
125630 -17 1495  IW2MLJ DL3EBJ -05 (x2)
125900 -20 1495  LA1QRO DL3EBJ RR73
125930 -17 1495  CQ DL3EBJ JO31 (x7)
130430 -14 1495  UR5WBO DL3EBJ 73
130500 -19 1495  CQ DL3EBJ JO31 (x3)
20m
UTC    dB Audio  Message
175800 -12 2175  SP4TKA DL3EBJ +10
200430 -17  878  CQ DL3EBJ JO31                        a1 (x2)
202715  +2 1096  DL3EBJ M7DBB IO92 (x6)
203115  -7 2606  DL3EBJ M7VME R+22
203145  +5 1097  DL3EBJ M7DBB IO92
203145  -9 2606  DL3EBJ M7VME 73
203245  +3 1096  DL3EBJ M7DBB IO92 (x3)
10m
UTC    dB Audio  Message
113700  +5  584  DL3EBJ 5H1KB R-17
094645 -14  885  5H1KB DL3EBJ JO31
131700 -10 1287  CQ DL3EBJ JO31 (x5)
132715 -18 1128  DL3EBJ R7OV KN87 (x3)
133415 -11  663  DL3EBJ PF1B JO22

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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