DL0BSO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO42

Receiver-side FT8 activity involving DL0BSO, decoded by SO8OO in southeastern Poland. 540 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 58 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.

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 540 FT8 messages attributed to DL0BSO as the transmitting token by decoded message structure across 58 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (56%), followed by 40 m (27%) and 10 m (17%). Most decodes (94%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

540
Messages attributed
58
UTC dates decoded
130
Active 15-min windows
-10 dB
Estimated median S/N

Bands

40m · 145 20m · 302 10m · 93
First attributed message: 2026-06-06
Last attributed message: 2026-09-19 18:58 UTC

Observed FT8 message patterns

Attributed sample
540 messages
Active dates
58 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-17 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 92, moderate (-15 to -9 dB) 227, strong (≥ -8 dB) 221.

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 DL0BSO 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 DL0BSO

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
JO42 · 337 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
934 km (approx.)
Last such locator decoded
2026-09-19 18:58 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 UTCBandDL0BSO S/NCounterpartCounterpart S/NMsgsCapture
09-19 18:58 40m -10 / -10 RX3DQX +1 / - 2 Partial capture
09-19 17:55 40m - / - DL7DL +10 / - 2 Partial capture
09-19 17:54 40m - / -13 RD7O +5 / - 3 ✓ Closing fragment
09-14 20:19 40m -6 / -7 RG5G +5 / - 3 ✓ Closing observed
09-11 19:49 40m -12 / - R6SS - / - 2 Partial capture
09-11 19:46 40m -8 / -14 R6ZS -4 / -17 4 ✓ Full exchange observed
09-07 19:38 40m - / - SP3SWJ 0 / - 2 Partial capture
09-07 19:33 40m - / - SP9JP +4 / - 6 Partial capture
09-07 19:30 40m -6 / -16 UB3FBD -8 / - 4 ✓ Closing observed
09-03 19:30 40m - / +1 EI8GS +6 / - 2 ✓ Closing fragment
08-31 21:49 40m - / - DL3MIB +6 / - 6 Partial capture
08-31 21:48 40m -6 / -6 US7LM +7 / +2 4 ✓ Full exchange observed
08-31 21:34 40m -10 / - MI5JYK - / - 3 Partial capture
08-31 21:00 40m - / - DK8HC -8 / - 5 Partial capture
08-31 21:00 40m - / - DL3MIB +15 / - 6 Partial capture
08-31 20:59 40m -13 / -24 IZ6OUX +1 / - 4 ✓ Closing observed
08-31 19:02 20m -5 / - IS0DDL - / - 2 Partial capture
08-31 18:58 20m +1 / -13 RN7B -9 / -15 3 ✓ Full exchange observed
08-30 19:40 40m - / -16 2E0LMA -11 / - 2 ✓ Closing fragment
08-30 19:38 40m -16 / - 2I0WMN - / - 3 Partial capture
08-29 19:56 40m -14 / -4 OH4EBD/P -16 / -18 6 ✓ Full exchange observed
08-29 19:53 40m -14 / - RA1OIE - / -12 3 ✓ Closing fragment
08-29 19:50 40m -9 / -25 LX7I +13 / -11 5 ✓ Full exchange observed
08-29 19:46 40m -8 / - UA3VVA - / -12 4 ✓ Closing fragment
08-29 19:40 40m -12 / -15 7X3WPL -16 / -8 8 ✓ Full exchange observed
08-29 19:36 40m -12 / - 7X3WPL - / - 3 Partial capture
08-28 21:46 40m - / -21 DK7ZT -3 / - 3 Partial capture
08-28 21:44 40m -2 / -17 BA5CW -8 / -9 6 ✓ Full exchange observed
08-28 21:37 40m - / - DK6MR +1 / - 8 Partial capture
08-28 21:36 40m - / -11 R6OU +6 / - 2 ✓ Closing fragment
08-27 21:18 20m +4 / - KA8YGL - / - 2 Partial capture
08-27 21:12 20m +8 / -1 F5PBG -2 / -20 5 ✓ Full exchange observed
08-27 21:11 20m +6 / -14 JF1UVJ -2 / -20 5 ✓ Full exchange observed
08-27 21:06 20m 0 / - JA8NZB - / -14 6 Partial capture
08-27 21:02 20m 0 / -12 BI4JJO -15 / -19 8 ✓ Full exchange observed
08-27 20:19 10m -14 / - RL1F - / -12 2 ✓ Closing fragment
08-27 18:24 20m -3 / - UT7NI - / -20 2 ✓ Closing fragment
08-26 20:49 20m +3 / - RI1FJL - / -14 6 ✓ Closing fragment
08-26 20:01 40m -5 / - JI3VUB - / - 3 Partial capture
08-24 21:12 20m -6 / - D2IM - / - 2 Partial capture
08-24 21:07 20m -9 / - TA1MB - / - 3 Partial capture
08-24 19:52 20m -14 / -7 UD6X +1 / - 5 Partial capture
08-24 19:49 20m -5 / +6 M8KKH +5 / -6 2 Partial capture
08-24 19:47 20m -5 / - R9FF - / - 3 Partial capture
08-24 19:42 20m -3 / - R9FF - / - 3 Partial capture
08-23 21:18 40m -10 / -8 UA6LIK -1 / -6 4 ✓ Full exchange observed
08-23 21:10 40m -8 / +2 RW4W 0 / +1 3 ✓ Full exchange observed
08-23 20:54 20m -1 / - 7M2PDT - / - 3 Partial capture
08-21 19:53 20m +1 / - HF5P - / -15 2 Partial capture
08-21 18:49 20m +2 / - RA9J - / -4 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
194915  -9 1576  R6SS DL0BSO JO42 (x2)
195130 -12 1586  UB6LUR DL0BSO JO42
191145 -16 1162  II0IHMG DL0BSO R-12
201715  -6  902  RG5G DL0BSO JO42
201930  +6  846  DL0BSO RG5G -07 (x2)
202015  -6  902  RG5G DL0BSO 73
175415  +7 2439  DL0BSO RD7O -13 (x3)
175545 +11 2291  DL0BSO DL7DL JO62 (x2)
185830 -10 2449  RX3DQX DL0BSO JO42
185845  +1 2450  DL0BSO RX3DQX -10
20m 
UTC    dB Audio  Message
211200  +5 2624  JF1UVJ DL0BSO R-20
211215  -2 2678  DL0BSO JF1UVJ RR73
211230  +9 2624  JF1UVJ DL0BSO 73
211245  -1 2624  DL0BSO F5PBG IN78
211300  +8 2623  F5PBG DL0BSO -20
211315  -2 2623  DL0BSO F5PBG R-01
211330  +8 2624  F5PBG DL0BSO RR73
211345  -4 2624  DL0BSO F5PBG 73
211845  +7 2318  KA8YGL DL0BSO JO42 (x2)
185800 -12  890  DL0BSO RN7B -13
185815  +1  917  RN7B DL0BSO R-15
185830  -6  890  DL0BSO RN7B RR73
190230  -3  683  IS0DDL DL0BSO JO42 (x2)
10m 
UTC    dB Audio  Message
194400 -14 1692  PY2MDA DL0BSO 73
194730  -9 2320  PY5ZHP DL0BSO JO42
195030 -10 2393  PU2BRU DL0BSO JO42 (x2)
202300  -8 2560  DL0BSO CE2SV -18 (x2)
181015 -18 2016  IZ0ZIP DL0BSO R+10 (x2)
181330 -23 1858  HZ1TT DL0BSO JO42 (x2)
175000  -9 2643  EA5AX DL0BSO JO42
175400 -17 2253  UY2UA DL0BSO JO42
201900 -16 1700  RL1F DL0BSO R-12 (x2)
202030 -14 1747  PY2YJ DL0BSO JO42

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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