DL1DXX — 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 DL1DXX, decoded by SO8OO in southeastern Poland. 1,252 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 81 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-12.

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 1,252 FT8 messages attributed to DL1DXX as the transmitting token by decoded message structure across 81 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (39%), followed by 80 m (33%) and 20 m (23%). Most decodes (67%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.

Overview

1,252
Messages attributed
81
UTC dates decoded
277
Active 15-min windows
-6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-09-12 16:48 UTC

Observed FT8 message patterns

Attributed sample
1,252 messages
Active dates
81 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-16.9 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 160, moderate (-15 to -9 dB) 332, strong (≥ -8 dB) 760.

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 DL1DXX

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 · 17 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-09-09 18:22 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 UTCBandDL1DXX S/NCounterpartCounterpart S/NMsgsCapture
09-12 16:48 80m -13 / - R9FDM - / -23 2 Partial capture
09-12 16:45 80m -2 / - RK6AH - / -14 3 Partial capture
09-12 15:16 40m -6 / - SO100PKP - / -19 2 Partial capture
09-12 07:25 40m -11 / - VI9POL - / -10 4 ✓ Closing fragment
09-11 16:33 40m -4 / - R5BM/M - / -9 3 Partial capture
09-10 15:35 40m +4 / -7 R4CBE +1 / -5 4 ✓ Full exchange observed
09-10 15:26 40m +3 / - UA9ZZ - / -12 2 Partial capture
09-10 15:21 40m -6 / - UA3ZMQ - / -12 4 Partial capture
09-10 15:17 40m - / - DL8TV -2 / - 5 Partial capture
09-10 15:17 40m - / - DL9KM -3 / - 7 Partial capture
09-10 15:15 40m -1 / -16 RA9MAI -18 / -13 7 ✓ Full exchange observed
09-10 15:11 40m -6 / - UA3ZMQ - / 0 3 Partial capture
09-10 15:10 40m -5 / - RA9MAI - / -21 2 Partial capture
09-10 15:05 40m -14 / - RA9MAI - / -12 2 Partial capture
09-10 14:58 40m -13 / - RA9MAI - / -12 8 Partial capture
09-09 18:24 80m -4 / - DA6WA -22 / - 4 ✓ Closing observed
09-09 18:23 80m -5 / -9 RA2FU -2 / -2 7 ✓ Full exchange observed
09-09 18:22 80m +2 / -22 RW4HBD -12 / -9 5 Partial capture
09-09 18:22 80m +2 / -14 RX3DRC -6 / -7 5 ✓ Full exchange observed
09-09 18:19 80m +4 / - RA3PGR - / -9 2 ✓ Closing fragment
09-08 18:28 80m +4 / - UB4FTI - / -9 5 Partial capture
09-08 18:26 80m 0 / - RA3THN - / -17 3 Partial capture
09-08 18:24 80m +8 / - UB5MBA - / -7 2 ✓ Closing fragment
09-06 17:43 80m +2 / - RD4HD - / -15 2 Partial capture
09-06 17:37 80m -3 / - UA9D - / -14 8 Partial capture
09-05 20:01 40m 0 / - R4HLO/P - / -16 4 Partial capture
09-04 20:28 80m +6 / - RI1FJL - / -15 8 ✓ Closing fragment
09-04 20:15 80m +5 / - RI1FJL - / -16 9 ✓ Closing fragment
09-04 18:57 80m -10 / - <...> - / -5 2 Partial capture
09-02 18:23 80m -6 / - R9DT - / -6 2 Partial capture
09-02 18:07 80m +2 / -8 UA3ZQN 0 / -3 4 ✓ Full exchange observed
09-01 18:12 40m 0 / -12 RG6ZF -6 / -18 4 ✓ Full exchange observed
08-30 19:00 80m -2 / - R9FF - / -9 2 ✓ Closing fragment
08-29 21:12 40m +6 / - RA9SOZ - / -13 3 ✓ Closing fragment
08-29 21:10 40m +4 / - UB1AVZ/P - / -10 2 ✓ Closing fragment
08-29 17:22 80m -9 / - RJ3T - / -16 5 Partial capture
08-29 17:20 40m -7 / - UA3POG - / -9 2 ✓ Closing fragment
08-29 16:46 40m -6 / - R0ADN - / -13 5 Partial capture
08-29 07:46 20m -14 / - R5BM/M - / -13 2 Partial capture
08-29 07:41 20m -12 / - <...> - / -9 2 Partial capture
08-28 20:04 80m -2 / - RA3VMK/P - / -13 2 Partial capture
08-28 20:03 80m 0 / -7 R6OIZ -11 / - 2 ✓ Closing observed
08-28 19:58 80m -16 / -5 RA3GZ -8 / -1 4 ✓ Full exchange observed
08-28 19:25 80m -2 / -6 R3ZBR 0 / -12 4 ✓ Full exchange observed
08-28 19:23 80m -1 / -4 RT6C -2 / -6 5 ✓ Full exchange observed
08-28 19:21 80m -11 / - R9AV - / -6 2 Partial capture
08-28 19:20 80m -14 / -5 SP5DFK +1 / - 3 ✓ Closing observed
08-28 19:18 80m -13 / - R1BRY - / -11 2 ✓ Closing fragment
08-28 19:17 80m - / -10 DO8JB -8 / - 3 ✓ Closing fragment
08-28 19:16 80m -9 / - UC1I -14 / -7 2 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
182400  -5 2334  DL1DXX RA2FU -09
182400 -24 1622  DL1DXX DA6WA JO30
182430  -8 2334  DL1DXX RA2FU -09
182430 -24 1623  DL1DXX DA6WA JO30
182445  -5  902  RA2FU DL1DXX R-02
182500  -3 2334  DL1DXX RA2FU RRR (x2)
182600 -17 1622  DL1DXX DA6WA R+16
182615  -4  902  DA6WA DL1DXX RR73
163715 -10 1869  UB3ADO/P DL1DXX -02
164500  +0 2693  RK6AH DL1DXX -14 (x3)
164800 -13 2039  R9FDM DL1DXX -23 (x2)
40m
UTC    dB Audio  Message
153500  +1 2553  R4CBE DL1DXX -05
153515  -1 2930  DL1DXX R4CBE R-07
153530  +7 2553  R4CBE DL1DXX RR73
153545  +3 2930  DL1DXX R4CBE 73
163345  -6 2082  R5BM/M DL1DXX -09 (x3)
163615  +5 2521  R8HC/P DL1DXX -09
163700 -17 2609  DL1DXX SP6FME JO90
072500  -8 1699  VI9POL DL1DXX -10 (x4)
151615  -8 1199  SO100PKP DL1DXX -19 (x2)
20m
UTC    dB Audio  Message
113815  +3 1939  JA2HYD DL1DXX RR73
113915  -8 1939  R9FGJ DL1DXX -15 (x2)
113530 -14 1719  UB1AXF DL1DXX +01 (x2)
123845  +1 2020  R9OBJ/P DL1DXX -08 (x2)
123930  +3 2021  DL1DXX F5IXN JN23 (x2)
074130 -11 1926  <...> DL1DXX -09 (x2)
074630 -11 1925  <R5BM/M> DL1DXX -13 (x2)
095930  -3 2084  TA2CAX/P DL1DXX -08
095945 -13 2485  DL1DXX R5BM/M R-10
10m
UTC    dB Audio  Message
122945  -2  737  UB0SMX/P DL1DXX -20
125745  -1 2573  R1TAX DL1DXX -02 (x4)
143100 -13 1263  R3MDJ DL1DXX -06 (x3)
143300 -11 1055  UA1AIR DL1DXX RR73 (x2)
143400 -11 1055  R3MDJ DL1DXX RR73 (x2)
074300 -11 1433  UA1ALY DL1DXX -02 (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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