CS7BDU — 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: Portugal Most frequent locator attributed to this token: IM58

Receiver-side FT8 activity involving CS7BDU, decoded by SO8OO in southeastern Poland. 133 FT8 messages attributed to this token as transmitter, on 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-29.

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 133 FT8 messages attributed to CS7BDU as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Most decodes (74%) fell within the six-hour window 11:00-17:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (86%); the estimated median was -21 dB.

Overview

133
Messages attributed
9
UTC dates decoded
21
Active 15-min windows
-21 dB
Estimated median S/N

Bands

10m · 133
First attributed message: 2026-06-20
Last attributed message: 2026-10-29 15:30 UTC

Observed FT8 message patterns

Attributed sample
133 messages
Active dates
9 UTC dates
Estimated median S/N
-21 dB
Estimated 10th-90th percentile
-24 to -15 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 115, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 0.

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 CS7BDU 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 CS7BDU

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
IM58 · 88 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,737 km (approx.)
Last such locator decoded
2026-10-29 15:30 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 UTCBandCS7BDU S/NCounterpartCounterpart S/NMsgsCapture
10-29 15:26 10m -22 / - SM5NNI - / - 4 Partial capture
10-29 15:23 10m -16 / - LZ3MJ - / -12 5 ✓ Closing fragment
10-29 15:13 10m -19 / - UR1CDP - / - 5 Partial capture
10-28 12:12 10m -21 / - 7Z1GC - / -9 8 ✓ Closing fragment
10-28 12:10 10m -20 / - R4FDD - / - 3 Partial capture
10-19 15:17 10m -20 / - SU3YM - / - 2 Partial capture
10-19 15:06 10m -23 / - RA3LCX - / -14 5 ✓ Closing fragment
10-18 16:06 10m -17 / - ZS6BAF - / - 3 Partial capture
10-18 16:04 10m -24 / - TJ1GD - / -2 3 ✓ Closing fragment
10-18 12:51 10m -23 / - R6DOP - / - 3 Partial capture
10-18 12:47 10m -23 / - RC6OZ - / -21 4 Partial capture
10-18 12:37 10m -21 / - TA3F - / -14 3 Partial capture
10-18 12:33 10m -22 / - YC1SEO - / - 2 ✓ Closing fragment
10-18 12:31 10m -20 / - UR5KCR - / - 2 ✓ Closing fragment
10-18 12:23 10m -24 / -23 CT2HEX -10 / -11 5 ✓ Full exchange observed
10-18 12:17 10m -24 / - RK4FD - / - 2 Partial capture
10-17 16:56 10m -21 / - SP8XXT - / -8 2 Partial capture
10-12 11:30 10m -24 / - SM3JGG - / +5 2 Partial capture
10-12 11:26 10m -22 / - FR5CN - / - 7 Partial capture
10-12 11:25 10m -20 / - ZS6RFI - / - 2 Partial capture
10-12 11:20 10m -15 / - OH6FSG - / - 6 ✓ Closing fragment
10-12 11:19 10m -15 / - UR8EP - / -6 3 ✓ Closing fragment
10-12 11:17 10m -13 / - HZ1RSM - / - 2 Partial capture
10-12 11:13 10m -17 / - ZS6RFI - / - 6 Partial capture
10-12 11:11 10m -12 / - YO8RQP - / -2 3 ✓ Closing fragment
10-12 11:09 10m -23 / - ZS6BCI - / -6 3 ✓ Closing fragment
08-23 18:28 10m - / -13 RT6Z +4 / - 3 Partial capture
08-22 18:12 10m - / -15 IK4UXA -17 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
121600 -24 1680  7Z1GC CS7BDU 73
151330 -22 1682  UR1CDP CS7BDU IM58 (x5)
152300 -11 1681  LZ3MJ CS7BDU IM58 (x5)
152645 -22 1680  SM5NNI CS7BDU IM58 (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.

CW

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

Explore CW reception at SO8OO

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