UA9CK — 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 Russia Most frequent locator attributed to this token: MO09

Receiver-side FT8 activity involving UA9CK, decoded by SO8OO in southeastern Poland. 1,758 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 62 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.

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 1,758 FT8 messages attributed to UA9CK as the transmitting token by decoded message structure across 62 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (76%), followed by 40 m (13%) and 80 m (10%). Most decodes (65%) 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 -10.4 dB.

Overview

1,758

Messages attributed

UTC dates decoded

231

Active 15-min windows

-10.4 dB

Estimated median S/N

Bands

80m · 182 40m · 232 20m · 1,344

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 01:27 UTC

Observed FT8 message patterns

Attributed sample: 1,758 messages
Active dates: 62 UTC dates
Estimated median S/N: -10.4 dB
Estimated 10th-90th percentile: -21 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 528, moderate (-15 to -9 dB) 464, strong (≥ -8 dB) 766.

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 EA5FD · Spain ×2 9A/KE2IOZ · Croatia AC2MW · United States AC9C · United States CU2JX · Azores EA3AZ · Spain EA4DS · Spain EA5HEU · Spain EB1DJ · Spain EB3JT · Spain EC3A · Spain

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 · 1,025 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,684 km (approx.)
Last such locator decoded: 2026-10-22 01:27 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
10-22 01:22	80m	+6 / -19	RN3YN	+2 / -18	11	✓ Full exchange observed
10-22 01:21	80m	+6 / +2	UA9JTJ/9	+2 / -6	3	Partial capture
10-22 01:15	80m	+2 / -13	SP8BJU	-2 / -14	6	✓ Full exchange observed
10-22 01:13	80m	+8 / -	LZ2EV	- / -	2	Partial capture
10-22 01:10	80m	0 / -	UA9JTJ/9	- / -	3	Partial capture
10-22 01:09	80m	+5 / -	SN0EG	- / -	2	Partial capture
10-22 01:09	80m	- / -	CT2HEX	-5 / -	4	Partial capture
10-22 01:06	80m	+6 / +1	UB3AMO	-3 / -11	6	✓ Full exchange observed
10-22 01:04	80m	+7 / -11	RA6OY	+10 / -9	5	✓ Full exchange observed
10-22 01:04	80m	- / -	DO1OAS	+6 / -	2	Partial capture
10-22 01:02	80m	+6 / -7	EA2DYB	+5 / -15	5	✓ Full exchange observed
10-22 01:02	80m	- / -	EB1LA	+7 / -	3	Partial capture
10-22 01:02	80m	- / -9	OH6IH	-8 / -	2	Partial capture
10-22 01:02	80m	- / -4	ON1JP	-13 / -	5	Partial capture
10-22 01:01	80m	+3 / -12	SM6EHY	+21 / -13	4	✓ Full exchange observed
10-22 00:59	80m	+9 / +2	PA3FPQ	+11 / -9	5	✓ Full exchange observed
10-22 00:58	80m	+6 / -	F4CTJ	+13 / -13	6	✓ Full exchange observed
10-22 00:54	80m	-1 / -	9A60CBM	- / -	3	Partial capture
10-20 00:33	40m	- / -13	CT7BRV	-10 / -	2	✓ Closing fragment
10-18 02:07	80m	-5 / -6	RD9M/3	0 / -	3	Partial capture
10-18 02:06	80m	-2 / +8	SM3EVR	+2 / -3	4	✓ Full exchange observed
10-18 02:04	80m	+2 / +5	SX37VER	-7 / -8	3	Partial capture
10-18 02:02	80m	-3 / -4	HA7JDU	+8 / -11	5	✓ Full exchange observed
10-05 05:18	40m	- / -7	3Z4DX	-8 / -	2	✓ Closing fragment
09-24 03:05	80m	- / -10	RA4FP	0 / -	2	✓ Closing fragment
09-24 02:48	40m	-17 / -	PF7DKW	- / -9	3	✓ Closing fragment
09-24 02:46	40m	-8 / -	RA6OF	- / -6	2	✓ Closing fragment
09-24 02:45	40m	-10 / -6	SV1ENG	-12 / -2	6	✓ Full exchange observed
09-24 02:43	40m	-10 / -	LU4VMR	- / -19	4	✓ Closing fragment
09-24 02:42	40m	-18 / -	SV9AUP	- / -	2	Partial capture
09-24 02:39	40m	-10 / -	RI1FJZ	- / -15	4	✓ Closing fragment
09-20 02:59	40m	-22 / -4	HB9BWE	-19 / -	2	Partial capture
09-20 02:55	40m	-8 / -	HB9VAB	- / -	2	Partial capture
09-20 02:53	40m	-12 / -4	IU6QTH	-9 / -14	3	Partial capture
09-15 03:10	40m	-6 / -	R4HEN	- / -	2	Partial capture
09-15 03:08	40m	-8 / -	JY5IB	-16 / -15	4	✓ Closing observed
09-15 03:07	40m	-7 / -	R3KLE	-11 / -1	4	✓ Closing observed
09-15 03:04	40m	-3 / -	UA6LND	+7 / -	4	✓ Closing observed
09-15 03:02	40m	-3 / -	8S2C	- / -14	3	✓ Closing fragment
09-15 02:59	40m	-12 / -	PY3EK	- / -	2	Partial capture
09-15 02:54	40m	-20 / -	D2ACE	- / -18	6	✓ Closing fragment
09-15 02:51	40m	-9 / -	LU5ILA	- / -9	3	✓ Closing fragment
09-15 02:49	40m	-11 / -	OE8DDX	- / -7	3	✓ Closing fragment
09-15 02:45	40m	-15 / -	PY1GB	- / -8	2	Partial capture
09-15 02:31	80m	- / -	ON4MAP	-23 / -	5	Partial capture
09-15 02:31	80m	-20 / -8	R6ZEJ	-8 / -	4	✓ Closing observed
09-15 02:28	80m	-10 / -25	F4EGM	-8 / -	9	✓ Full exchange observed
09-15 02:23	80m	-22 / -	II6IALU	- / -3	2	Partial capture
09-13 02:20	40m	- / -16	EC5M	0 / -	2	✓ Closing fragment
09-04 02:16	40m	-11 / -	HF100PKP	- / -13	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
012115  +5  948  <UA9JTJ/9> UA9CK MO09
012130  +2  948  UA9CK UA9JTJ/9 +02
012145  +6  948  UA9JTJ/9 UA9CK R-06
012245  +5  699  RN3YN UA9CK MO09
012300  +3  699  UA9CK RN3YN -19 (x2)
012345  +5  698  RN3YN UA9CK R-18
012400  +1  699  UA9CK RN3YN -19
012415  +8  759  RN3YN UA9CK R-16
012430  +3  699  UA9CK RN3YN -19
012445  +6  699  RN3YN UA9CK RR73
012500  +1  699  UA9CK RN3YN -19 (x3)
012730  +3 2421  9A60CBM UA9CK MO09

40m

UTC    dB Audio  Message
024615 -12 2199  SV1ENG UA9CK RR73
024630 -10 2197  UA9CK SV1ENG 73
024645  -9 2304  RA6OF UA9CK -06 (x2)
024815 -14 1655  PF7DKW UA9CK MO09 (x3)
051830  -6  796  UA9CK 3Z4DX -07 (x2)
052300  -4 1301  UA9CK RK6MC -16
021600 -11 2344  UA9CK LZ2IP -09
021615 -16 1599  UA9CK R6ZB RR73
003345  -9  828  UA9CK CT7BRV -13 (x2)
003530 -19 1589  CQ UA9CK MO09                         a1

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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