UA4CKN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LO31

Receiver-side FT8 activity involving UA4CKN, decoded by SO8OO in southeastern Poland. 1,037 related FT8 messages, 228 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 82 UTC dates. Heard between 2026-05-25 and 2026-08-23.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

1,037

Related messages

228

CQ messages

UTC dates heard

-6 dB

Mean decoder S/N

Bands

80m 20m 40m 10m 160m

First seen: 2026-05-25
Last seen: 2026-08-23 07:50 UTC

Frequent QSO partners observed at SO8OO

Stations UA4CKN worked most often, as logged from our receiver:

RT2P · European Russia ×4 R6OIZ · European Russia ×3 R50RKZ · European Russia ×3 RA6ATZ · European Russia ×2 RU3DBT · European Russia ×2 RA3XFR · European Russia ×2 R2EA/P · European Russia ×2 UB3ADO/P · European Russia ×2 RU3OW · European Russia ×2 RA3ZOM · European Russia ×2 R6FMK · European Russia ×2 RV3X · European Russia ×2

Activity Heatmap

Locator transmitted by UA4CKN

Approximate centre of LO31, decoded 2026-08-19 20:51 UTC. A transmitted locator is not proof of the operator's permanent location.

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	UA4CKN S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 18:23	80m	-8 / -12	RV3DCM/1	+5 / -6	4	Partial capture
08-22 18:23	80m	- / -6	R5BS	+13 / -	2	✓ Closing fragment
08-22 18:11	80m	-14 / -12	UA4NCX	-6 / -7	4	✓ Full exchange observed
08-22 18:09	80m	-12 / -	UF4S/P	0 / +1	3	✓ Closing observed
08-22 17:58	40m	-22 / -11	R3TY	0 / +2	3	Partial capture
08-22 17:52	40m	-16 / -	<...>	- / -3	2	Partial capture
08-22 17:50	40m	- / -5	R4HNT	-6 / -	2	✓ Closing fragment
08-20 17:02	20m	- / -6	RU6FK	-8 / -	3	Partial capture
08-20 17:00	20m	-7 / -14	MM0TBH	-2 / -21	7	✓ Full exchange observed
08-19 20:52	160m	- / -	EW8CW	-2 / -	2	Partial capture
08-19 20:35	80m	-7 / +4	UB3BGN	-2 / -3	4	Partial capture
08-19 20:11	40m	- / -	F1IQH	-11 / -	3	Partial capture
08-19 18:20	160m	- / -15	RU3X	-10 / -	2	✓ Closing fragment
08-18 18:49	80m	-19 / -	RQ3D	- / -13	3	✓ Closing fragment
08-18 18:42	80m	-19 / -8	R4HMI	-10 / -	3	✓ Closing observed
08-18 08:11	10m	- / -4	R7IA	-16 / -	2	✓ Closing fragment
08-16 18:26	80m	- / +3	RA4FHO	-12 / -	2	✓ Closing fragment
08-15 19:50	80m	-13 / -	RC0AT/P	- / -15	3	Partial capture
08-15 18:20	80m	-5 / -	R8UJ	- / -20	3	✓ Closing fragment
08-15 18:14	80m	-16 / 0	R50RKZ	+6 / 0	5	✓ Full exchange observed
08-15 18:13	80m	-14 / -9	R5ACQ	+4 / -1	4	✓ Full exchange observed
08-15 06:00	20m	-13 / -	R6ADH	- / -15	3	✓ Closing fragment
08-14 22:08	80m	-10 / -13	TF2CT	-12 / -15	5	✓ Full exchange observed
08-14 22:00	80m	-4 / -	UA0TP	- / -18	2	✓ Closing fragment
08-14 09:10	20m	-20 / -	UA6HFI	- / -13	2	Partial capture
08-14 08:53	20m	-19 / -	<...>	- / -17	3	Partial capture
08-14 07:39	20m	-9 / -	RA9CUA	- / -22	3	✓ Closing fragment
08-14 07:28	20m	- / +4	R50RKZ	-4 / -	2	✓ Closing fragment
08-13 19:06	160m	- / -9	RU3DBT	-21 / -	6	✓ Closing fragment
08-13 18:31	160m	- / -15	RC1TF	-12 / -	5	Partial capture
08-12 19:53	160m	- / -12	SA3CAT	-4 / -	2	✓ Closing fragment
08-12 15:22	10m	- / -22	GW8DX	+12 / -	2	Partial capture
08-11 19:52	40m	- / -4	UA7XA	-4 / -	2	✓ Closing fragment
08-11 19:24	80m	-10 / -2	UA4WCS	-12 / -3	6	✓ Full exchange observed
08-11 19:24	80m	-12 / -	RA4HPQ	- / -13	2	✓ Closing fragment
08-11 19:17	80m	-15 / -	RV3SBS/P	- / -7	2	✓ Closing fragment
08-11 17:52	20m	- / -8	GW8DX	-6 / -	2	✓ Closing fragment
08-10 22:18	20m	- / -13	DL2AX	-12 / -	3	✓ Closing fragment
08-08 20:32	160m	-15 / -	SP5GMM	- / -13	2	Partial capture
08-08 20:30	160m	-8 / -	RA3TNV	- / -16	3	Partial capture
08-08 20:27	160m	-6 / -	RA3TNV	- / -18	2	Partial capture
08-08 20:12	160m	-21 / -	R2APU	-20 / -16	5	✓ Closing observed
08-08 20:11	160m	-18 / -10	RA9YTI	-16 / -	3	✓ Closing observed
08-08 19:39	160m	-22 / -	RA9YTI	- / -10	5	Partial capture
08-08 19:33	160m	- / -	DL1CC	+1 / -	10	Partial capture
08-08 19:15	160m	- / -9	UA3FH	-18 / -	2	Partial capture
08-08 18:37	160m	- / -12	R6OIZ	-6 / -	2	✓ Closing fragment
08-08 18:34	160m	- / -7	R1MA	-20 / -	2	✓ Closing fragment
08-08 18:32	160m	- / -13	RX3PX	-4 / -	2	✓ Closing fragment
08-08 18:29	160m	- / -4	RC2DD	-13 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
060115 -12 2133  R6ADH UA4CKN RR73
090500  -3 2815  R0SDM/P UA4CKN -23
080900 -18 1808  UA4CKN R9FDE/P 73
170030  -2  930  MM0TBH UA4CKN -21
170045  -4  931  UA4CKN MM0TBH R-14
170100 -10  929  MM0TBH UA4CKN RR73
170115  +0  931  UA4CKN MM0TBH R-14
170200  -8  931  MM0TBH UA4CKN RR73 (x2)
170245  -6 1252  UA4CKN RU6FK -06
170245  -3  931  UA4CKN MM0TBH 73
170315  -9 1252  UA4CKN RU6FK -15 (x2)
095030  -4 2179  UA4CKN R5BM/M R-06
045015  -2 2422  8Z1IT UA4CKN -20

80m

UTC    dB Audio  Message
180945 -13 1175  UF4S/P UA4CKN +01
181030  +0 1058  UA4CKN UF4S/P 73
181145 -18 1175  UA4NCX UA4CKN -07
181200  -6 1504  UA4CKN UA4NCX R-12
181215 -10 1175  UA4NCX UA4CKN RR73
181230  -7 1504  UA4CKN UA4NCX 73
181445 -13 1175  UF4S/P UA4CKN -04
181500  +3 1555  UA4CKN R1530IG R-03
182215  -9 1175  UF4S/P UA4CKN -07
182300 +11 2819  UA4CKN R5BS R-06 (x2)
182345  -8 2686  <RV3DCM/1> UA4CKN -06 (x3)
182500  +5 2503  UA4CKN RV3DCM/1 R-12

40m

UTC    dB Audio  Message
191645 -14 1152  UA4CKN R2ASD R-03
195200  -5 2819  UA4CKN UA7XA R-04 (x2)
182145  -3  669  UA4CKN RW3BK 73
201115 -10  553  UA4CKN F1IQH JN27 (x3)
174445  -9 2305  UA4CKN RD9M/3 R-10
175015  -5  960  UA4CKN R4HNT R-05 (x2)
175245 -16 1206  <...> UA4CKN -03 (x2)
175830 -22 1206  R3TY UA4CKN +02
175845  +3  631  UA4CKN R3TY R-11 (x2)

160m

UTC    dB Audio  Message
190645 -21 1729  UA4CKN RU3DBT KO95 (x6)
200000 -18 1135  R1AO UA4CKN -25
182045  -9 1471  UA4CKN RU3X R-15 (x2)
205000  +0  706  UA4CKN R0QBB/3 R-15
205115 -10  528  CQ UA4CKN LO31 (x2)
205200  -4 1170  UA4CKN EW8CW KO52 (x2)
205500  -8  528  SP6AXW UA4CKN -21

10m

UTC    dB Audio  Message
111945  -7  451  UA4CKN RK6OV R-17
110745 -11  564  CQ UA4CKN LO31
075415 -19 1055  UA4CKN RZ3DUB 73
075615 +12  490  UA4CKN IK4LZH JN54 (x2)
075715  -4 2872  UA4CKN RN3OX RR73
075715 +15  490  UA4CKN IK4LZH JN54 (x2)
135845  -2  564  UA4CKN F4HQL JN29 (x2)
152200 +10 2875  UA4CKN GW8DX R-22 (x2)
152300 +14 2815  UA4CKN RR73; F4AXK <GW8DX> -12
081115 -15 1018  UA4CKN R7IA R-04 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.