US1CT — 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: Ukraine Most frequent locator attributed to this token: KN58

Receiver-side FT8 activity involving US1CT, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-21 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 32 FT8 messages attributed to US1CT as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (56%), followed by 40 m (34%) and 10 m (9%). Several six-hour UTC windows tied for the largest share (50%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was +2 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+2 dB

Estimated median S/N

Bands

80m · 18 40m · 11 10m · 3

First attributed message: 2026-08-21
Last attributed message: 2026-10-23 04:24 UTC

Observed FT8 message patterns

Attributed sample: 32 messages
Active dates: 4 UTC dates
Estimated median S/N: +2 dB
Estimated 10th-90th percentile: -10 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 28.

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 US1CT in decoded directed-looking exchanges:

9A4ZM · Croatia KZ7Y · United States UR3HC · Ukraine UT5MB · Ukraine W3PJ · United States

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 US1CT

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: KN58 · 19 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 687 km (approx.)
Last such locator decoded: 2026-10-23 04:16 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	US1CT S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 04:25	80m	- / -5	GM6URC	-13 / -	2	Partial capture
10-23 04:24	80m	0 / -	W3PJ	- / -21	2	✓ Closing fragment
10-23 04:20	80m	+2 / -	KZ7Y	- / +4	2	✓ Closing fragment
10-23 04:20	80m	- / -	EB3JT	-16 / -	8	Partial capture
10-23 04:18	80m	+11 / -	KH6M	- / -20	2	Partial capture
10-23 04:15	80m	+4 / -	KH6M	- / -	3	Partial capture
10-23 04:02	80m	-11 / -11	9A4ZM	+10 / -23	6	✓ Full exchange observed
10-23 04:00	80m	0 / -2	UR3HC	-12 / -	6	✓ Full exchange observed
10-23 03:59	80m	-5 / -5	UT5MB	-4 / -	5	✓ Full exchange observed
10-21 16:51	80m	+11 / -	YB1LIN	- / -	2	Partial capture
09-19 15:44	40m	+5 / -	9N2WF	- / -	11	Partial capture
08-21 12:58	10m	-9 / -	3A2MW	- / -2	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
041915 +11 1427  KH6M US1CT R-20
042030 -15 1427  US1CT EB3JT JN01
042045  +2 1428  KZ7Y US1CT R+04 (x2)
042200 -24 1428  US1CT EB3JT JN01 (x3)
042415  +2 1428  W3PJ US1CT R-21 (x2)
042500 -12 1693  US1CT GM6URC -05
042500 -13 1428  US1CT EB3JT JN01
042530 -14 1693  US1CT GM6URC -05
042530 -14 1428  US1CT EB3JT JN01 (x3)

40m

UTC    dB Audio  Message
154430  -2 1829  9N2WF US1CT KN58 (x11)

10m

UTC    dB Audio  Message
125830 -10 1536  3A2MW US1CT KN58 (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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee