US5RK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Locator transmitted in a decoded message: KO61

Receiver-side FT8 activity involving US5RK, decoded by SO8OO in southeastern Poland. 86 related FT8 messages, 6 CQ messages, observed on 80m, 20m, across 4 UTC dates. Heard between 2026-08-08 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

Related messages

CQ messages

UTC dates heard

+2 dB

Mean decoder S/N

Bands

80m 20m

First seen: 2026-08-08
Last seen: 2026-08-23 18:27 UTC

Frequent QSO partners observed at SO8OO

Stations US5RK worked most often, as logged from our receiver:

DO5HOK · Fed. Rep. of Germany ×2 DH3RM · Fed. Rep. of Germany YO3HUI · Romania ER5GB · Moldova E75C · Bosnia-Herzegovina DF1BN · Fed. Rep. of Germany HA8GJG · Hungary M8KKH · England PD5A · Netherlands HB9EFK · Switzerland YO4NT · Romania HA8TJP · Hungary

Activity Heatmap

Locator transmitted by US5RK

Approximate centre of KO61, decoded 2026-08-23 20:30 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	US5RK S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 20:28	80m	+4 / -	HB3YBG	- / -	4	Partial capture
08-23 20:27	80m	-15 / -	E75C	+3 / -	3	✓ Closing observed
08-23 20:21	80m	0 / -	9A4ZM	+13 / +8	3	Partial capture
08-23 20:18	80m	+4 / -	EI4KF	- / -	2	Partial capture
08-23 20:17	80m	-4 / -7	DF1BN	+7 / -1	10	✓ Full exchange observed
08-23 20:16	80m	+1 / -16	DO5HOK	+6 / -12	5	✓ Full exchange observed
08-23 20:11	80m	-4 / -2	YO4NT	+12 / -	5	✓ Full exchange observed
08-23 20:11	80m	0 / -	YO3HUI	+7 / +2	8	✓ Full exchange observed
08-23 20:07	80m	0 / -	IS0CZG	- / -	5	Partial capture
08-23 20:04	80m	+11 / -	IN3WZS	- / -	4	Partial capture
08-23 20:02	80m	+1 / -	EA8XNX	- / -	3	Partial capture
08-23 20:01	80m	+9 / -	CT2KNA	- / -	2	Partial capture
08-23 13:55	20m	-6 / -	PD5A	- / -23	7	✓ Closing fragment
08-23 13:05	20m	-12 / -	M3TZX	- / -15	3	✓ Closing fragment
08-23 13:00	20m	-5 / -18	EN35UKR	-5 / 0	10	Partial capture
08-23 12:55	20m	-6 / -16	F4HTA	+7 / -	22	Partial capture
08-23 06:37	20m	- / -7	HB9EFK	+12 / -	2	✓ Closing fragment
08-22 18:40	80m	-4 / -	HA8TJP	- / -6	2	✓ Closing fragment
08-22 18:37	80m	-6 / -6	HA8GJG	+5 / -13	6	✓ Full exchange observed
08-22 18:22	80m	-12 / -9	UF4S/P	-7 / -7	2	Partial capture
08-22 18:18	80m	-2 / -10	ER5GB	+2 / -10	10	✓ Full exchange observed
08-22 18:16	80m	+6 / -23	DJ5FI	+18 / -9	6	✓ Full exchange observed
08-22 15:57	80m	- / -	UA4FKT	+4 / -	4	Partial capture
08-22 15:29	20m	-4 / -	F1EHM	- / -	2	Partial capture
08-22 15:27	20m	+2 / -	9A4AA	- / -	4	Partial capture
08-22 15:25	20m	-10 / -	BG2LZP	- / -	2	Partial capture
08-22 14:44	20m	-13 / -9	M8KKH	-17 / +6	7	✓ Full exchange observed
08-21 19:35	80m	-7 / -6	UW5KW	+6 / -5	5	✓ Full exchange observed
08-21 19:31	80m	-5 / -	SP1ZMO	- / -	8	Partial capture
08-21 19:21	80m	-2 / -	DG4BRT	- / -	6	Partial capture
08-21 19:18	80m	-7 / -16	DO5HOK	-10 / -21	4	✓ Full exchange observed
08-21 16:16	20m	- / -14	TA2ED	-6 / -	2	Partial capture
08-21 16:14	20m	-12 / -	MI9PBM	- / -	2	Partial capture
08-21 16:12	20m	-4 / -	YO4GIY	-6 / -	2	✓ Closing observed
08-21 16:10	20m	-10 / -	DH3RM	-8 / +2	3	✓ Closing observed
08-21 16:03	20m	-7 / -15	YO4GIY	+3 / -	2	Partial capture
08-08 16:27	80m	-14 / +4	UR5RP	-2 / -	4	✓ Full exchange observed
08-08 16:22	80m	-18 / -	UR5RP	0 / -	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
202045  +6  904  US5RK DF1BN JN68
202100  -6 1452  DF1BN US5RK -03
202115  +5 1378  US5RK DF1BN R-07
202130  -1 1452  DF1BN US5RK RR73
202145 +16 1447  US5RK 9A4ZM JN86
202145  +4 1378  US5RK DF1BN 73
202215 +10 1447  US5RK 9A4ZM JN86
202230  +0  856  9A4ZM US5RK +08
202730 -24 1865  E75C US5RK R+18
202745  +3 1865  US5RK E75C RR73
202800  -6 1865  E75C US5RK 73
202845  +5  515  HB3YBG US5RK KO61 (x4)

20m

UTC    dB Audio  Message
130645 +13  820  US5RK F4HTA -16 (x2)
130715 -11 1177  M3TZX US5RK 73
130745 +10  820  US5RK F4HTA -16 (x5)
135515  -3  618  PD5A US5RK KO61 (x7)

Decoder S/N history by band

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