DL9BCO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO43

Receiver-side FT8 activity involving DL9BCO, decoded by SO8OO in southeastern Poland. 206 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-25 and 2026-09-07.

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 206 FT8 messages attributed to DL9BCO as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (68%), followed by 10 m (31%) and 40 m (0%). Several six-hour UTC windows tied for the largest share (62%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -5.5 dB.

Overview

206
Messages attributed
12
UTC dates decoded
27
Active 15-min windows
-5.5 dB
Estimated median S/N

Bands

First attributed message: 2026-06-25
Last attributed message: 2026-09-07 08:00 UTC

Observed FT8 message patterns

Attributed sample
206 messages
Active dates
12 UTC dates
Estimated median S/N
-5.5 dB
Estimated 10th-90th percentile
-12 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 53, strong (≥ -8 dB) 150.

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 DL9BCO

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
JO43 · 124 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
964 km (approx.)
Last such locator decoded
2026-09-07 08:00 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 UTCBandDL9BCO S/NCounterpartCounterpart S/NMsgsCapture
09-07 08:02 40m - / -4 DL6FCK -8 / - 3 ✓ Closing fragment
09-07 08:01 40m - / - F4BYA -1 / - 3 Partial capture
09-07 07:56 40m - / - DL6FCK -6 / - 3 Partial capture
09-07 07:52 40m - / - F4BYA -3 / - 4 Partial capture
09-07 07:44 40m - / - F4BYA -5 / - 4 Partial capture
09-07 07:40 40m - / - F1TXI -16 / - 2 Partial capture
09-07 07:40 40m - / -21 OE6TNO +2 / - 5 ✓ Closing fragment
09-07 07:35 40m - / -11 F1PBZ -14 / - 2 Partial capture
09-07 07:30 40m - / - SP9UPH 0 / - 3 Partial capture
09-07 07:28 40m - / - F4BYA -4 / - 4 Partial capture
09-07 07:24 40m - / - SP5EXA +13 / - 4 Partial capture
09-06 09:32 40m - / - PD0IFI -3 / - 2 Partial capture
09-06 09:29 40m - / - DK2SW -11 / - 2 ✓ Closing fragment
09-06 09:14 40m - / -15 SP6FME +6 / - 6 ✓ Closing fragment
09-06 09:06 40m - / - SP6FME +4 / - 2 Partial capture
08-29 16:28 20m -6 / - VK2LAW - / - 4 Partial capture
08-29 16:17 20m -10 / - RI1FJL - / - 2 Partial capture
08-25 19:06 20m - / -15 TA2ED -6 / - 2 Partial capture
08-22 08:32 10m -10 / - DF9NV - / - 2 Partial capture
08-22 08:29 10m - / - EA3AKY -10 / - 2 Partial capture
08-21 20:02 20m - / - OK2CNI +10 / - 4 Partial capture
08-21 20:01 20m - / -11 IK4LZH +5 / - 2 Partial capture
08-21 19:48 80m - / -15 DA6CGN -10 / - 4 Partial capture
08-21 19:43 80m - / -3 DO4TIM -18 / - 2 ✓ Closing fragment
08-21 19:38 80m - / -12 DK0KG -7 / - 6 ✓ Closing fragment
08-21 19:34 80m - / -14 DK7ZT +3 / - 3 ✓ Closing fragment
08-21 19:33 80m - / - DL5JMN +3 / - 4 Partial capture
08-21 19:26 20m +2 / - K0MDS - / - 6 Partial capture
08-21 19:23 20m +5 / -13 DF8MH -6 / -20 4 ✓ Full exchange observed
08-21 19:09 20m -2 / - WV2B - / -13 3 Partial capture
08-21 19:04 20m +7 / - JA5NSR - / - 3 Partial capture
08-21 19:00 20m +4 / -19 BI4JJO -19 / -19 7 ✓ Full exchange observed
08-21 18:56 20m +6 / -12 DL5DQZ -1 / -15 8 ✓ Full exchange observed
08-21 18:55 20m +6 / - TA6MMI - / - 6 Partial capture
08-12 19:44 20m 0 / - A93MO - / - 2 Partial capture
08-12 19:42 20m 0 / - EA3ACA - / -17 2 ✓ Closing fragment
08-12 19:36 20m -3 / -4 DL3HN -6 / -4 6 Partial capture
08-12 19:33 20m -3 / -2 DL3MIB +7 / - 5 ✓ Full exchange observed
08-12 19:31 20m 0 / - S56IPS - / -8 2 ✓ Closing fragment
08-12 19:29 20m -3 / - PD1HBL - / -3 2 ✓ Closing fragment
08-12 19:19 20m -4 / - TT1GD - / - 2 Partial capture
08-12 19:17 20m -8 / - ON7AC - / -8 2 ✓ Closing fragment
08-12 19:15 20m -8 / -8 PC2J -2 / -4 6 ✓ Full exchange observed
08-12 19:13 20m - / - G0GHL -11 / - 3 Partial capture
08-12 19:12 20m -6 / - DL1BBO - / -8 2 ✓ Closing fragment
08-12 19:08 20m -6 / - G4YLJ - / -4 5 ✓ Closing fragment
08-12 19:03 20m -6 / - F5MXH - / -7 2 ✓ Closing fragment
08-12 19:01 20m -14 / -13 R1BEO -14 / - 3 ✓ Closing observed
08-12 18:57 20m -4 / - LZ2VQ - / +3 2 ✓ Closing fragment
08-12 18:55 20m -5 / - TJ1GD - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
075200  -4 2982  DL9BCO F4BYA JN19 (x4)
075630  -6  424  DL9BCO DL6FCK JO40 (x2)
075700  -7  601  DL9BCO DL2AOM R-20
075730  -5  424  DL9BCO DL6FCK JO40
080045 -12  594  CQ DL9BCO JO43
080100  -2 2982  DL9BCO F4BYA JN19 (x3)
080230  -7  424  DL9BCO DL6FCK R-04 (x3)
20m
UTC    dB Audio  Message
200245 +10 2419  DL9BCO OK2CNI JN79 (x4)
201415  -7 2551  DL9BCO EA1AJT IN72
201815  -7  631  DL9BCO IZ3SQT R-04
190200  -8 1793  DL9BCO RA1QX KO99
190630  -7 1744  DL9BCO TA2ED -15 (x2)
161745 -11  632  RI1FJL DL9BCO JO43 (x2)
162845  -5  632  VK2LAW DL9BCO JO43 (x4)
10m
UTC    dB Audio  Message
083000 -12  645  E70SZ DL9BCO RR73
083245 -11  646  DF9NV DL9BCO JO43 (x2)
083515  -9  646  CQ DL9BCO JO43                        a1
083545  -3  646  YU7OMG DL9BCO -15
083845 -13  646  UT7UJ DL9BCO R+10
084015  +1  646  CQ DL9BCO JO43 (x9)
80m
UTC    dB Audio  Message
193445  +3  557  DL9BCO DK7ZT -14 (x2)
193815  -9 1069  DL9BCO DK0KG JN49
193845 -14  558  DL9BCO DO9DP 73
193845  -6 1069  DL9BCO DK0KG JN49 (x5)
194345 -17  690  DL9BCO DO4TIM R-03 (x2)
194800  -6  428  DL9BCO DA6CGN -15 (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.

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