CT1BWU — 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: IM59

Receiver-side FT8 activity involving CT1BWU, decoded by SO8OO in southeastern Poland. 1,539 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 48 UTC dates in the available aggregate history. Observed between 2026-06-11 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 1,539 FT8 messages attributed to CT1BWU as the transmitting token by decoded message structure across 48 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (46%), followed by 80 m (30%) and 20 m (12%). Most decodes (94%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

1,539
Messages attributed
48
UTC dates decoded
169
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-06-11
Last attributed message: 2026-10-23 19:49 UTC

Observed FT8 message patterns

Attributed sample
1,539 messages
Active dates
48 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-18.7 to -3.5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 342, moderate (-15 to -9 dB) 656, strong (≥ -8 dB) 541.

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 CT1BWU

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
IM59 · 874 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,670 km (approx.)
Last such locator decoded
2026-10-23 19:49 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 UTCBandCT1BWU S/NCounterpartCounterpart S/NMsgsCapture
10-23 19:49 80m -14 / - OV9A - / - 2 Partial capture
10-22 21:03 160m -24 / -11 HB9AMO +9 / - 3 Partial capture
10-22 20:52 160m - / -14 G4EZT -5 / - 2 ✓ Closing fragment
10-21 22:23 160m -8 / - 7P8GE - / -19 4 Partial capture
10-21 22:16 160m -16 / - 7P8GE - / - 3 Partial capture
10-20 13:15 10m -9 / - N8XY - / - 7 Partial capture
10-20 13:13 10m -9 / - YO3GNF - / -1 2 ✓ Closing fragment
10-20 13:11 10m -5 / - K2FST - / -2 3 ✓ Closing fragment
10-20 13:08 10m -5 / - KI6DY - / - 3 ✓ Closing fragment
10-18 08:08 40m - / -2 GJ0KYZ -15 / - 2 ✓ Closing fragment
10-17 00:16 40m -8 / - W8DGZ - / -15 4 ✓ Closing fragment
10-17 00:14 40m -10 / - W1GSD - / - 2 Partial capture
10-17 00:12 40m -11 / - K0NZ - / -12 3 ✓ Closing fragment
10-17 00:11 40m -11 / - DA0M - / -16 2 ✓ Closing fragment
10-17 00:07 40m -9 / - WM1N - / -7 4 ✓ Closing fragment
10-17 00:04 40m -12 / +5 RN6HK 0 / -1 7 ✓ Full exchange observed
10-17 00:02 40m -10 / - VU2DCC - / - 3 ✓ Closing fragment
10-16 23:59 40m -10 / - K9V - / -10 4 ✓ Closing fragment
10-16 23:58 40m -11 / - WH6A - / -22 3 ✓ Closing fragment
10-16 23:56 40m -14 / - BG0KD - / - 2 Partial capture
10-16 23:54 40m - / - DK4ET -6 / - 3 ✓ Closing fragment
10-16 23:52 40m -10 / - KD8JM - / - 3 Partial capture
10-16 23:50 40m -11 / - N1MIW - / -10 3 ✓ Closing fragment
10-16 23:48 40m -13 / - PD1WD - / -9 2 ✓ Closing fragment
10-16 23:47 40m -10 / - W2JCT - / -18 3 ✓ Closing fragment
10-16 23:46 40m -9 / - VA3ZJB - / -25 2 ✓ Closing fragment
10-16 23:44 40m -11 / - KE9EMV - / -15 3 ✓ Closing fragment
10-16 23:41 40m -10 / - TA2ED - / -8 2 ✓ Closing fragment
10-16 23:34 40m -6 / - WT2S - / - 2 Partial capture
10-16 23:31 40m -9 / - DL6RS - / -8 2 ✓ Closing fragment
10-16 23:28 40m -10 / - NE1CW - / - 6 Partial capture
10-16 23:25 40m -12 / - NO4D - / - 2 Partial capture
10-16 23:23 40m -12 / - W4WV - / -2 3 ✓ Closing fragment
10-16 23:21 40m -12 / - KF8GTV - / -16 2 ✓ Closing fragment
10-16 23:20 40m -10 / - HZ1IP - / - 2 Partial capture
10-16 23:19 40m -12 / - N4LR - / -10 3 ✓ Closing fragment
10-16 23:17 40m -12 / - KD8JM - / - 3 Partial capture
10-16 23:15 40m -11 / - W1DRC - / -10 3 Partial capture
10-16 23:13 40m -4 / - WV9L - / -11 3 ✓ Closing fragment
10-16 23:02 40m -7 / - BG0FQU - / -11 5 ✓ Closing fragment
10-16 23:00 40m -7 / -8 RL3T -9 / -7 5 ✓ Full exchange observed
10-16 22:58 40m -7 / - PD1HBL - / -9 3 ✓ Closing fragment
10-16 22:54 40m -10 / - N2ON -21 / -6 5 ✓ Closing observed
10-16 22:52 40m +2 / - BD7MTJ - / -16 2 ✓ Closing fragment
10-16 22:49 40m -3 / - IK2ZJR -3 / -1 5 ✓ Full exchange observed
10-16 22:45 40m -4 / - BA4IE - / -13 2 Partial capture
10-16 22:44 40m -4 / - JY5IB -20 / - 2 ✓ Closing observed
10-16 22:44 40m - / - F1IQH -2 / - 4 Partial capture
10-16 22:42 40m -4 / - YD1EQN -24 / -8 4 ✓ Closing observed
10-16 22:40 40m -2 / - PD1HBL - / -14 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
214215 -18 1444  TM47CDXC CT1BWU IM59 (x2)
214345 -12 1297  CQ CT1BWU IM59
214445 -21 1296  UX5UO CT1BWU IM59
214500 +12 1129  CT1BWU UX5UO -02
214515 -12 1296  UX5UO CT1BWU R-16
214530 +16 1129  CT1BWU UX5UO RR73
214545 -13 1296  UX5UO CT1BWU 73
214830 -13 1297  M1CNK CT1BWU R+00
220930  -8 1358  CT1BWU DL9KM JN68
221000  -8  339  CT1BWU EA1KCU RR73
221345 -12 1319  K4RUM CT1BWU R-20
221400 -24 2102  CT1BWU K4RUM RR73
194900 -16 1146  OV9A CT1BWU IM59 (x2)
160m
UTC    dB Audio  Message
222815 -11 1856  CT1BWU DF2RG RR73
222830 -24 1856  DF2RG CT1BWU 73
221645 -15 1349  7P8GE CT1BWU IM59 (x8)
205200  -4 1051  CT1BWU G4EZT -14 (x2)
210315 -24 1200  HB9AMO CT1BWU IM59
210430  +9 2601  CT1BWU HB9AMO -11 (x2)
10m
UTC    dB Audio  Message
131000  -5 1092  KI6DY CT1BWU 73
131030  -6 1092  N8XY CT1BWU IM59
131100  -6 1091  K2FST CT1BWU IM59 (x3)
131300 -10 1092  YO3GNF CT1BWU -01 (x2)
131400  -6 1091  VE3PFW CT1BWU IM59
131500  -5 1092  N8XY CT1BWU IM59 (x7)
40m
UTC    dB Audio  Message
001045 -11 1726  CQ CT1BWU IM59
001115 -10 1726  DA0M CT1BWU -16 (x2)
001245  -8 1726  K0NZ CT1BWU IM59 (x3)
001415  -6 1726  W1GSD CT1BWU IM59 (x2)
001545 -10 1726  KC3WLS CT1BWU IM59
001645 -10 1726  W8DGZ CT1BWU IM59 (x4)
080830 -13 1215  CT1BWU GJ0KYZ -02 (x2)
20m
UTC    dB Audio  Message
171600  -4 1238  <...> CT1BWU IM59 (x2)
171645  -6  820  CT1BWU <...> +04
171700  -4 1238  <...> CT1BWU R+08 (x5)
075200  -7 1772  RW0UM CT1BWU IM59 (x7)

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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