CT7AUK — 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 CT7AUK, decoded by SO8OO in southeastern Poland. 46 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-11-06.

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 46 FT8 messages attributed to CT7AUK as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 80 m (22%) and 20 m (15%). Most decodes (89%) fell within the six-hour window 21:00-03:00 UTC. 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 · 10 40m · 29 20m · 7

First attributed message: 2026-06-12
Last attributed message: 2026-11-06 01:21 UTC

Observed FT8 message patterns

Attributed sample: 46 messages
Active dates: 8 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -21 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 14.

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 CT7AUK in decoded directed-looking exchanges:

F8MRQ · France C5R · The Gambia EA1IOK · Spain GM6URC · Scotland OK1SI · Czech Republic YO4NF · Romania

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 CT7AUK

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 · 30 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,737 km (approx.)
Last such locator decoded: 2026-11-06 01:21 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	CT7AUK S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 00:56	40m	-8 / -	TJ1GD	- / -18	3	Partial capture
10-06 02:24	40m	-7 / -	S79KW	- / -	5	Partial capture
10-06 02:03	40m	-6 / -	3B9FR	- / -	3	Partial capture
10-06 00:35	80m	-16 / -	GM6URC	-5 / -11	2	✓ Closing observed
10-06 00:34	80m	- / -	DL4DP	-8 / -	2	Partial capture
10-06 00:34	80m	-21 / -	EA1IOK	-5 / -	6	✓ Closing observed
10-06 00:33	80m	-14 / -17	OK1SI	+13 / -10	8	✓ Full exchange observed
10-06 00:33	80m	-18 / -15	YO4NF	+8 / -3	5	✓ Full exchange observed
10-06 00:32	80m	-14 / -	C5R	- / -7	2	✓ Closing fragment
10-01 23:33	40m	-12 / -	V51PJ	- / -	3	Partial capture
09-01 23:13	40m	-20 / -	9J2FI	- / -	3	Partial capture
09-01 22:56	40m	-21 / -	TJ1GD	- / -	3	Partial capture
09-01 22:54	40m	- / -19	UA4POO	-12 / -	4	Partial capture
09-01 22:52	40m	-16 / 0	F8MRQ	-6 / -	5	✓ Closing observed
09-01 22:47	40m	-16 / -	TN8GD	- / -6	2	Partial capture
08-30 21:13	20m	-10 / -	EX7DY	- / -	2	Partial capture
08-30 20:05	20m	-11 / -	RI1FJL	- / -14	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
233400 -13 2046  V51PJ CT7AUK IM58 (x2)
020345  -8 2536  3B9FR CT7AUK IM58 (x3)
021815 -11 2535  S79KW CT7AUK IM58 (x6)
005615  -8 2354  TJ1GD CT7AUK IM58 (x3)
012115 -10 2354  7Q6M CT7AUK IM58

80m

UTC    dB Audio  Message
003430  -1  559  CT7AUK EA1IOK IN62
003430  -9 1594  CT7AUK DL4DP JO31
003445 -17 2042  OK1SI CT7AUK -10
003500 +10  396  CT7AUK OK1SI R-17
003500  -7  559  CT7AUK EA1IOK IN62
003515 -11 2042  OK1SI CT7AUK RR73
003530 +18  396  CT7AUK OK1SI 73
003530  -4  559  CT7AUK EA1IOK IN62
003530  -8 1594  CT7AUK DL4DP JO31
003545 -16 2041  GM6URC CT7AUK R-11
003600  -5 1693  CT7AUK GM6URC RR73
003600 -11  559  CT7AUK EA1IOK IN62 (x2)
003715 -21 2041  EA1IOK CT7AUK RR73
004045 -21 2503  TJ1GD CT7AUK IM58

20m

UTC    dB Audio  Message
200100  -7 2455  PE1DJJ CT7AUK IM58
200515 -10 2066  RI1FJL CT7AUK R-14 (x2)
200815  -7 2066  EX7DY CT7AUK IM58 (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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