CT1CLO — 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 CT1CLO, decoded by SO8OO in southeastern Poland. 44 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-20 and 2026-10-18.

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 44 FT8 messages attributed to CT1CLO as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (82%), followed by 40 m (11%) and 20 m (7%). Several six-hour UTC windows tied for the largest share (95%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 36 40m · 5 20m · 3

First attributed message: 2026-07-20
Last attributed message: 2026-10-18 20:56 UTC

Observed FT8 message patterns

Attributed sample: 44 messages
Active dates: 8 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -24 to -4 dB
Recurring-pattern threshold: Met

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

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 CT1CLO in decoded directed-looking exchanges:

D2UY · Angola DL1DUO · Fed. Rep. of Germany LY1DY · Lithuania OL900CO · Czech Republic R8CA · Asiatic Russia

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 CT1CLO

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 · 28 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,737 km (approx.)
Last such locator decoded: 2026-10-18 20:56 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 UTC	Band	CT1CLO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 20:06	80m	-16 / -	D2UY	- / -	2	Partial capture
10-18 19:39	80m	-11 / -8	EC3A	-24 / -5	2	Partial capture
10-18 19:37	80m	- / -23	R8CA	-19 / -	4	✓ Closing fragment
10-18 19:35	80m	+1 / -	AM5GC	- / -7	2	Partial capture
09-21 22:41	80m	-14 / -	RI1FJZ	- / -	6	Partial capture
09-21 20:48	80m	-20 / -	RI1FJZ	- / -	4	Partial capture
09-07 19:14	40m	-8 / -	RG6ZF	-4 / -18	4	Partial capture
09-07 19:12	40m	-13 / -	VJ6X	- / -	2	Partial capture
08-20 19:42	80m	-9 / -9	LY1DY	+6 / -12	4	✓ Full exchange observed
08-20 19:40	80m	-14 / -16	DL1DUO	+16 / -11	6	✓ Full exchange observed
08-20 19:38	80m	- / -13	OL900CO	+2 / -	6	✓ Closing fragment
08-20 19:38	80m	-12 / -	<...>	- / -16	2	Partial capture
08-20 19:29	80m	-18 / -15	D2UY	-19 / -13	5	✓ Full exchange observed
08-15 16:20	20m	- / -	IU4PPL	-23 / -	2	Partial capture
08-10 19:58	80m	-20 / -	JE6WOQ	- / -	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
224345 -18 1782  RI1FJZ CT1CLO IM58 (x4)
193530  +1 2884  AM5GC CT1CLO IM58 (x2)
193745 -19 1558  CT1CLO R8CA MO06 (x4)
193915 -24 1912  CT1CLO EC3A -08
193930 -11 1884  EC3A CT1CLO R-05
200630 -18 1786  D2UY CT1CLO IM58 (x2)
205645 -11 2704  JA7JPZ CT1CLO IM58

40m

UTC    dB Audio  Message
195015  +3 2627  F8KIC/P CT1CLO IM58
195100  +2 1306  CT1CLO OL900CO -09
191230 -14 1639  VJ6X CT1CLO IM58 (x2)
191445  -5 1430  CT1CLO RG6ZF KN98 (x2)
191600  -9 1639  RG6ZF CT1CLO -18 (x2)

20m

UTC    dB Audio  Message
183215  -9 2564  TT1GD CT1CLO R+00
162000 -11 2601  CR5VP CT1CLO IM58
162045 -23 1601  CT1CLO IU4PPL JN54 (x2)
162230  -4 2815  CR5VP CT1CLO IM58

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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