TC4ATA — 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: Asiatic Turkey Most frequent locator attributed to this token: KM69

Receiver-side FT8 activity involving TC4ATA, decoded by SO8OO in southeastern Poland. 33 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-24 and 2026-10-31.

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 33 FT8 messages attributed to TC4ATA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (91%), followed by 40 m (9%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 3 10m · 30

First attributed message: 2026-10-24
Last attributed message: 2026-10-31 11:10 UTC

Observed FT8 message patterns

Attributed sample: 33 messages
Active dates: 2 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -13 to -4 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 6.

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 TC4ATA in decoded directed-looking exchanges:

CT2IBL · Portugal DJ7GB · Fed. Rep. of Germany EA1C · Spain EA5IAG · Spain F4JCU · France IU5NWT · Italy PD7JLP · Netherlands RX9WN · Asiatic Russia UB6OCP · European Russia DC6KI · Fed. Rep. of Germany DC7MA · Fed. Rep. of Germany IU8RFW · Italy

Most frequent locator attributed to TC4ATA

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: KM69 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,457 km (approx.)
Last such locator decoded: 2026-10-31 10:54 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	TC4ATA S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-01 11:35	10m	- / -12	CT2IBL	-10 / -	3	✓ Closing fragment
11-01 10:27	10m	- / -16	F1PBZ	-6 / -	2	Partial capture
11-01 10:26	10m	- / +2	LZ3SD	-19 / -	2	Partial capture
10-31 11:02	10m	- / -	TA2GG	-13 / -	17	Partial capture
10-31 10:54	10m	- / -7	EA1C	-11 / -	8	✓ Closing fragment
10-31 10:19	10m	-11 / -	YL3PD	- / +7	2	Partial capture
10-31 10:11	10m	- / -	EA1IOK	-10 / -	4	Partial capture
10-31 10:11	10m	-10 / -	F4JCU	- / +6	2	✓ Closing fragment
10-31 10:05	10m	-8 / -	EA3AT	- / -4	2	Partial capture
10-31 10:04	10m	-6 / -	LA5SJA	- / -9	2	Partial capture
10-31 09:56	10m	- / -7	EA5IAG	-5 / -	5	✓ Closing fragment
10-30 08:29	10m	- / -	EA7BD	-13 / -	2	Partial capture
10-24 19:52	40m	-11 / -9	IU8RFW	-14 / -10	4	✓ Full exchange observed
10-24 19:50	40m	- / -	G6PWS	-6 / -	2	Partial capture
10-24 19:50	40m	- / -	LZ4VR	-14 / -	5	Partial capture
10-24 19:49	40m	-9 / -	DC7MA	-10 / -18	3	✓ Full exchange observed
10-24 19:47	40m	- / -	G6PWS	-12 / -	2	Partial capture
10-24 19:46	40m	- / -10	DC6KI	-9 / -	3	✓ Closing fragment
10-24 19:46	40m	- / -8	OS7P	-1 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
110800 -12 1112  TC4ATA TA2GG KM59 (x5)
111030 -10  682  M7HET TC4ATA -19
111200 -17 1113  TC4ATA TA2GG KM59
102615 -20 1555  TC4ATA LZ3SD KN22 (x2)
102745  -7 2840  TC4ATA F1PBZ -16 (x2)
112145  +4  681  TC4ATA IU5NWT RR73
113515 -16 1983  TC4ATA CT2IBL IM58 (x3)

40m

UTC    dB Audio  Message
195000 -13 2239  TC4ATA DC7MA 73
195015 -14 1541  UX5UO TC4ATA +07
195030 -12 1300  TC4ATA LZ4VR KN13
195030  -9  907  TC4ATA G6PWS IO91
195100 -23 1597  TC4ATA RA3ZH KO81
195100  -4  907  TC4ATA G6PWS IO91
195200 -20 1300  TC4ATA LZ4VR KN13
195215 -11 1541  IU8RFW TC4ATA -10
195230 -11 1300  TC4ATA LZ4VR KN13
195230 -12 2020  TC4ATA IU8RFW JN70 (x2)
195330 -13 1300  TC4ATA LZ4VR KN13
195330 -15 2020  TC4ATA IU8RFW 73
195430 -15 1300  TC4ATA LZ4VR KN13
175215 -14 1795  TC4ATA LB9UE JP41

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

2 CW reception events in the last 30 days.

40m: 2 events; last heard 2026-11-04 17:15 UTC

Latest CW receptions

UTC	Band	kHz	S/N · 500 Hz	WPM	Listen
2026-11-04 17:15:05	40m	7010.058	11.6 dB	—	WebSDR ↗
2026-11-04 17:13:37	40m	7010.038	12.3 dB	29.2	WebSDR ↗

CW reception history

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