UA9CK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: MO09

Receiver-side FT8 activity involving UA9CK, decoded by SO8OO in southeastern Poland. 1,641 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 55 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-04.

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 1,641 FT8 messages attributed to UA9CK as the transmitting token by decoded message structure across 55 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (82%), followed by 40 m (11%) and 80 m (8%). Most decodes (62%) fell within the six-hour window 00:00-06:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

1,641

Messages attributed

UTC dates decoded

216

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 124 40m · 173 20m · 1,344

First attributed message: 2026-06-06
Last attributed message: 2026-09-04 02:17 UTC

Observed FT8 message patterns

Attributed sample: 1,641 messages
Active dates: 55 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -21 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 507, moderate (-15 to -9 dB) 440, strong (≥ -8 dB) 694.

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 UA9CK in decoded directed-looking exchanges:

R2GBR · European Russia ×2 IK4LZH · Italy ×2 EA5FD · Spain ×2 LZ2ZD · Bulgaria ×2 R3UCZ · European Russia BH3NLG · China RZ4AZ · European Russia KB1FJC · United States IV3NDR · Italy M7JVT · England RA3AV · European Russia SV2FNT · Greece

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 UA9CK

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: MO09 · 965 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,684 km (approx.)
Last such locator decoded: 2026-09-04 02:17 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	UA9CK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 02:16	40m	-11 / -	HF100PKP	- / -13	3	Partial capture
09-04 02:14	40m	-6 / -	RC8SAB	- / -4	4	✓ Closing fragment
09-04 02:08	40m	-10 / -	EX8ABQ	- / -5	4	✓ Closing fragment
09-04 02:06	40m	-8 / -	PY2DPM	- / -11	3	✓ Closing fragment
09-04 02:04	40m	-7 / -	ZS1BHJ	- / -15	5	✓ Closing fragment
09-04 02:01	40m	-10 / -	PY2RF	- / -18	3	Partial capture
09-04 01:59	40m	-2 / -	PY2MTG	- / -16	2	✓ Closing fragment
09-04 01:54	40m	- / -7	ON1DGN	-14 / -	2	✓ Closing fragment
09-04 01:48	40m	-7 / +3	R7MR	+14 / +2	5	✓ Full exchange observed
09-04 01:46	40m	-16 / -	W7YA	- / -	3	Partial capture
09-04 01:45	40m	-18 / -	PY5JO	- / -16	2	✓ Closing fragment
09-04 01:31	80m	+2 / -	RW9WT	- / -	4	Partial capture
09-04 01:28	80m	+1 / -	RN1CW	- / -	2	Partial capture
09-04 01:27	80m	-3 / -	LU8EKC	- / -	3	Partial capture
09-04 01:25	80m	+4 / +2	SN40KZE	+10 / -3	5	✓ Full exchange observed
09-04 01:23	80m	-5 / -6	CT7AUT	-16 / -18	5	✓ Full exchange observed
09-04 01:22	80m	- / -	DO8JB	-3 / -	13	Partial capture
09-04 01:22	80m	-1 / -	RU9DX	- / +1	2	✓ Closing fragment
09-04 01:20	80m	+1 / -3	F4BPO	+4 / -5	5	✓ Full exchange observed
09-04 01:17	80m	-8 / -	PP1DX	- / -	2	Partial capture
09-04 01:15	80m	-6 / -6	R2EA	-2 / -4	5	✓ Full exchange observed
09-04 01:13	80m	-6 / 0	IT9BYL	-12 / -13	5	✓ Full exchange observed
09-04 01:11	80m	-2 / -	PT7YV	- / -7	2	✓ Closing fragment
09-04 01:10	80m	+1 / -4	UA3ATQ	-8 / -6	4	✓ Full exchange observed
09-04 01:07	80m	-4 / -	LZ1EV	- / 0	2	Partial capture
09-04 01:07	80m	- / -	DL9KM	-7 / -	7	Partial capture
09-04 01:06	80m	- / -7	OR7K	-3 / -	2	✓ Closing fragment
09-02 00:24	40m	- / -10	IU1WXY	-6 / -	2	Partial capture
09-02 00:20	40m	-13 / -	EA5FD	-18 / -6	2	✓ Closing observed
09-02 00:19	40m	-9 / -	PY3EKL	- / -	3	Partial capture
09-02 00:18	40m	-14 / -	L50HLK	- / -	2	Partial capture
09-02 00:15	40m	-7 / -	EA8CDG	-8 / -9	5	✓ Closing observed
09-02 00:13	40m	-17 / -	PA1KDB	-21 / -	2	✓ Closing observed
09-02 00:11	40m	-16 / -	R4HHN	- / -	2	Partial capture
09-02 00:07	40m	-12 / -	L50HLK	- / -	8	Partial capture
09-02 00:03	40m	-10 / -	L50HLK	- / -	3	Partial capture
09-02 00:02	40m	-2 / -	PY2ZS	- / -	2	Partial capture
09-01 23:58	40m	-2 / -	HI8ML	- / -	2	Partial capture
09-01 23:56	40m	-12 / -2	AM42SDC	-4 / 0	5	Partial capture
09-01 23:49	80m	+3 / -	IK4UXA	- / -	3	Partial capture
09-01 23:44	80m	-4 / -12	HB10GBT	-3 / -19	3	Partial capture
09-01 23:42	80m	-7 / -15	EC6AAE	+5 / -	4	✓ Closing observed
09-01 23:40	80m	-6 / -7	UA3XDR	-7 / -5	5	✓ Full exchange observed
09-01 23:36	80m	-3 / -10	GM6URC	-7 / -11	5	✓ Full exchange observed
09-01 23:32	80m	+4 / -	RI1FJL	- / -15	4	✓ Closing fragment
09-01 23:31	80m	+4 / -	EW6BZ	- / -	2	Partial capture
09-01 23:29	80m	-1 / -16	EA1DSK	-16 / -16	6	✓ Full exchange observed
09-01 23:28	80m	-11 / -7	IR7MGGC	+4 / -20	5	✓ Full exchange observed
08-31 06:44	20m	-20 / +5	BG0FQU	-23 / -	2	Partial capture
08-30 07:56	20m	-16 / -	3V8HP	- / -	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
020900  -7 1590  EX8ABQ UA9CK MO09 (x3)
021130 -11 1590  CQ UA9CK MO09 (x5)
021400  -4 1590  RC8SAB UA9CK -04 (x4)
021630 -13 1590  <HF100PKP> UA9CK MO09 (x3)

80m

UTC    dB Audio  Message
012715  -3 1888  LU8EKC UA9CK MO09
012715  +0  801  UA9CK DO8JB JO32
012745  -2 1887  LU8EKC UA9CK MO09
012745  -3  801  UA9CK DO8JB JO32
012815  -3 1888  LU8EKC UA9CK MO09
012815  +2  801  UA9CK DO8JB JO32 (x2)
012845  +0 1033  RN1CW UA9CK MO09 (x2)
013115  -1 1949  CT1FSG UA9CK MO09
013145  +1 1281  RW9WT UA9CK MO09 (x4)
013415  +0 1033  RN1CW UA9CK MO09

20m

UTC    dB Audio  Message
111600  -4 1854  UA0JBY UA9CK MO09 (x2)
111730  +0 1856  RU3GF UA9CK MO09 (x2)
112000  -2 1856  UA0JBY UA9CK MO09 (x2)
112100  +4  913  UA9CK G1ZHD IO92
024830  +2 2244  UA9CK UA9SAV -10 (x2)
075615 -10  711  UA9CK G0JEI -06
075630 -16 1724  3V8HP UA9CK MO09 (x2)
064415 -20 1512  BG0FQU UA9CK MO09
064430 -23 1512  UA9CK BG0FQU +05
093800 -17 2561  RU7A UA9CK MO09

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.

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