CT1BXX — 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: IN51

Receiver-side FT8 activity involving CT1BXX, decoded by SO8OO in southeastern Poland. 38 FT8 messages attributed to this token as transmitter, on 60m, 40m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-30 and 2026-10-23.

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 38 FT8 messages attributed to CT1BXX as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (50%), followed by 60 m (39%) and 40 m (11%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

38
Messages attributed
3
UTC dates decoded
4
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-08-30
Last attributed message: 2026-10-23 16:14 UTC

Observed FT8 message patterns

Attributed sample
38 messages
Active dates
3 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-15 to -7 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 5.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with CT1BXX in decoded directed-looking exchanges:

Most frequent locator attributed to CT1BXX

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
IN51 · 23 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,546 km (approx.)
Last such locator decoded
2026-10-23 16:13 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 UTCBandCT1BXX S/NCounterpartCounterpart S/NMsgsCapture
10-23 16:11 10m -9 / - J79FS - / +4 7 ✓ Closing fragment
10-23 16:07 10m -10 / - Z61DX - / -10 5 ✓ Closing fragment
10-23 16:03 10m -10 / - TL8GD - / -1 2 ✓ Closing fragment
10-23 16:01 10m -18 / - C91RU - / - 4 Partial capture
10-17 19:22 60m -14 / - Z33ST - / - 2 Partial capture
10-17 19:17 60m -13 / - Z33ST - / - 4 Partial capture
10-17 19:11 60m -13 / -9 T77RN -4 / -21 10 ✓ Full exchange observed
08-30 21:51 40m -13 / - TN8GD - / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
160345  -9 2548  TL8GD CT1BXX R-01 (x2)
160515  -9 2548  SM3ULU CT1BXX RR73
160715  -9 2548  Z61DX CT1BXX IN51 (x5)
161115  -6  937  J79FS CT1BXX IN51 (x7)
60m
UTC    dB Audio  Message
191215 -14 1053  T77RN CT1BXX R-21 (x7)
191730 -10 1052  Z33ST CT1BXX IN51 (x6)
192315 -14 2330  T77RN CT1BXX IN51
192530  -6  498  CT1BXX T77RN -06
40m
UTC    dB Audio  Message
215115 -11 1895  TN8GD CT1BXX IN51 (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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