DC5BO — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO41

Receiver-side FT8 activity involving DC5BO, decoded by SO8OO in southeastern Poland. 301 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-12.

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 301 FT8 messages attributed to DC5BO 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 (44%), followed by 40 m (42%) and 10 m (14%). Most decodes (84%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

301
Messages attributed
12
UTC dates decoded
43
Active 15-min windows
-10 dB
Estimated median S/N

Bands

40m · 125 20m · 133 10m · 43
First attributed message: 2026-06-08
Last attributed message: 2026-10-12 18:40 UTC

Observed FT8 message patterns

Attributed sample
301 messages
Active dates
12 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-18 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 72, moderate (-15 to -9 dB) 98, strong (≥ -8 dB) 131.

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 DC5BO 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 DC5BO

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
JO41 · 145 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
916 km (approx.)
Last such locator decoded
2026-10-12 18:39 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 UTCBandDC5BO S/NCounterpartCounterpart S/NMsgsCapture
10-12 18:39 40m -7 / - EA3JEZ - / - 2 ✓ Closing fragment
10-12 18:35 40m -5 / - LY1SR - / -1 3 Partial capture
10-12 18:33 40m -8 / - EW8AAC - / -7 4 Partial capture
10-12 18:30 40m -6 / - UN3P - / - 4 Partial capture
10-12 18:28 40m -7 / - UA9QFF - / - 3 Partial capture
10-12 18:25 40m -8 / - Z62NS - / -17 6 Partial capture
10-12 18:23 40m -1 / +3 HB9EOT -8 / -3 4 ✓ Full exchange observed
09-14 19:32 40m - / -12 OE3PBS +10 / - 3 ✓ Closing fragment
09-14 19:30 40m -8 / - YO4GIY -7 / -6 4 ✓ Closing observed
09-14 19:26 40m -9 / - F4NLM - / - 3 Partial capture
09-14 19:20 40m -4 / -1 UA3SCU +2 / -5 7 ✓ Full exchange observed
09-14 19:15 40m -8 / -6 9A7BB -2 / -4 5 ✓ Full exchange observed
09-14 18:46 40m +3 / +2 ON5ACO +1 / - 2 Partial capture
09-14 18:42 40m -4 / - SV1DKR -4 / -1 5 ✓ Closing observed
09-13 20:28 40m +1 / - RA6OY - / +9 6 Partial capture
09-13 20:27 40m 0 / - EB5FMC -6 / - 3 ✓ Closing observed
09-13 20:22 40m -5 / +1 MW7RHR -7 / -2 6 ✓ Full exchange observed
09-13 20:22 40m -3 / - RA6OY +8 / +6 8 Partial capture
09-13 20:20 40m -3 / -8 RX3ASQ -6 / 0 4 ✓ Full exchange observed
08-30 19:55 20m - / -11 UA6YW +23 / - 2 ✓ Closing fragment
08-30 19:14 20m -10 / - UW5EFY - / -19 2 Partial capture
08-30 19:08 20m -8 / - HA1BF - / - 2 Partial capture
08-30 19:00 20m -1 / - UR3VCJ - / - 3 Partial capture
08-30 18:53 20m -17 / - LZ1VDK - / -25 3 Partial capture
08-30 18:50 20m -16 / - UW5KW - / - 3 Partial capture
08-30 18:46 20m -17 / - BG7BVI - / -13 5 ✓ Closing fragment
08-30 18:44 20m -9 / - JH5AVM - / -25 3 ✓ Closing fragment
08-30 18:39 20m -14 / - OD5ZZ - / - 3 ✓ Closing fragment
08-28 20:44 40m -4 / +2 DL6UM +7 / -7 5 ✓ Full exchange observed
08-28 20:41 40m - / - F6KFT +4 / - 2 Partial capture
08-28 20:41 40m - / - DL6UM +2 / - 2 Partial capture
08-28 20:38 40m -1 / - SP7TF -12 / - 4 ✓ Closing observed
08-28 20:33 40m -2 / -8 SA7SVR -17 / -20 4 ✓ Full exchange observed
08-28 20:31 40m -3 / -6 9A3AUH +5 / - 8 ✓ Closing observed
08-28 20:26 40m -4 / -8 SA7SVR -18 / - 6 Partial capture
08-28 15:44 40m -15 / - YL3FW - / -17 5 ✓ Closing fragment
08-28 15:39 40m - / - PE1NPS -12 / - 3 Partial capture
08-28 15:37 40m -15 / - YL3FW - / -17 3 ✓ Closing fragment
08-28 15:35 40m -16 / - MM3JFM - / -10 2 ✓ Closing fragment
08-28 15:33 40m - / -11 EW8KO -1 / - 3 Partial capture
08-28 15:31 40m -8 / -3 SQ3WL -2 / - 4 ✓ Closing observed
08-28 14:01 40m -12 / - SA7BYQ - / -3 2 Partial capture
08-28 13:58 40m - / - PD0LBY -22 / - 2 Partial capture
08-28 13:55 40m -12 / -9 S56LKP +1 / -5 8 ✓ Full exchange observed
08-27 20:33 20m -8 / - JH5AVM - / - 3 Partial capture
08-27 20:31 20m -6 / - N3HQN - / - 2 Partial capture
08-27 20:26 20m -13 / - K2TQC - / - 3 Partial capture
08-27 20:24 20m -9 / - <...> - / -6 3 Partial capture
08-27 20:18 20m - / -10 F5PBG -12 / - 3 ✓ Closing fragment
08-27 20:15 20m -6 / - BU2FW - / -16 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
182830  -8 1043  UA9QFF DC5BO JO41 (x2)
183045  -4 1945  UN3P DC5BO JO41 (x4)
183315 -10 1724  EW8AAC DC5BO JO41 (x4)
183545  -5 1231  LY1SR DC5BO JO41 (x3)
183945  -6  790  EA3JEZ DC5BO JO41 (x2)
20m 
UTC    dB Audio  Message
185300 -13 1350  LZ1VDK DC5BO JO41 (x3)
190030  -3 2351  UR3VCJ DC5BO JO41 (x3)
190815 -10 1345  HA1BF DC5BO JO41 (x2)
191400  -8 1455  UW5EFY DC5BO JO41 (x2)
192245  -4 2225  DC5BO EC3A RR73
193015  -6 2105  DC5BO 4X5JK RR73
195215 +23 2538  DC5BO UA6YW LN04 (x3)
10m 
UTC    dB Audio  Message
144545 -15 1298  EA1AJT DC5BO -09 (x4)
144745 -13 1298  CQ DC5BO JO41
144815 -11 1298  EA1AJT DC5BO -10 (x3)
145045 -12 1576  PY8ZB DC5BO JO41 (x4)
145545 -17 1577  SM4TIW DC5BO +16 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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