TI5RTZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Costa Rica Locator transmitted in a decoded message: EK70

Receiver-side FT8 activity involving TI5RTZ, decoded by SO8OO in southeastern Poland. 6,702 related FT8 messages, 1,574 CQ messages, observed on 160m, 80m, 60m, 40m, 20m, across 36 UTC dates. Heard between 2026-04-21 and 2026-05-28.

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

6,702

Related messages

1,574

CQ messages

UTC dates heard

-6 dB

Mean decoder S/N

Bands

80m 20m 40m 60m 160m

First seen: 2026-04-21
Last seen: 2026-05-28 03:52 UTC

Frequent QSO partners observed at SO8OO

Stations TI5RTZ worked most often, as logged from our receiver:

R6DME · European Russia ×2 R3SN · European Russia RW6MZ · European Russia IZ8WGU · Italy KJ5MRD · United States RZ6CO · European Russia MM6HVT · Scotland DL1DWU · Fed. Rep. of Germany KR4LSP · United States YO9IBC · Romania DH5YBE · Fed. Rep. of Germany KE2DC · United States

Activity Heatmap

Locator transmitted by TI5RTZ

Approximate centre of EK70, decoded 2026-05-28 05:52 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	TI5RTZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
05-28 05:47	20m	-6 / -	JA8BQW	- / -19	4	Partial capture
05-28 05:46	20m	- / -	UB3GCX	-14 / -	3	Partial capture
05-28 05:43	20m	-8 / -	SP3JHY	- / -18	2	✓ Closing fragment
05-28 05:42	20m	-12 / -	LB9KI	-17 / -11	3	✓ Closing observed
05-28 05:37	20m	-16 / -	MM6HVT	-24 / -9	4	✓ Closing observed
05-28 05:35	20m	- / -9	EA4FJX	-7 / -	3	✓ Closing fragment
05-28 05:34	20m	-9 / -	YO2MKK	- / -11	2	✓ Closing fragment
05-28 05:33	20m	-6 / -	DK3WL	- / -21	2	✓ Closing fragment
05-28 05:30	20m	-12 / -19	UT5ED	+9 / -20	4	✓ Full exchange observed
05-28 05:27	20m	- / -	RA5BQ	-16 / -	4	Partial capture
05-28 05:26	20m	-13 / +1	SM3AFR	-12 / -15	6	✓ Full exchange observed
05-28 05:23	20m	- / -	YO9IBC	+2 / -	5	✓ Closing fragment
05-28 05:22	20m	-9 / -	ON1CH	- / -16	2	✓ Closing fragment
05-28 05:21	20m	- / -	RU3DNN	+1 / -	3	Partial capture
05-28 05:21	20m	- / -12	RK6MC	-6 / -	2	Partial capture
05-28 05:17	20m	-9 / -	SP8NFO	- / -17	2	✓ Closing fragment
05-28 05:16	20m	- / -10	RO6G	-11 / -	4	Partial capture
05-28 05:14	20m	- / -	F4ILM	-15 / -	2	✓ Closing fragment
05-28 05:13	20m	- / -	R6DME	-4 / -	2	✓ Closing fragment
05-28 05:11	20m	- / -	SP6FEK	-6 / -	8	Partial capture
05-28 05:11	20m	-13 / -	HA8CJ	- / -13	8	✓ Closing fragment
05-28 05:01	20m	-12 / -18	R6DME	-9 / -18	24	✓ Full exchange observed
05-28 04:59	20m	- / -	R8CKD	+2 / -	2	Partial capture
05-28 04:59	20m	- / -	UR5LMB	+4 / -	3	✓ Closing fragment
05-28 04:54	20m	- / -15	R6DME	-14 / -	2	Partial capture
05-28 04:53	20m	-3 / -	YO6OEK	- / -12	2	✓ Closing fragment
05-28 04:51	20m	-2 / -	E79KO	- / -19	2	✓ Closing fragment
05-28 04:47	20m	-14 / -	YO2MHF	- / -17	2	✓ Closing fragment
05-28 04:45	20m	- / -	UA4HBJ	-7 / -	6	Partial capture
05-28 04:44	20m	- / -17	R6DME	-13 / -	4	Partial capture
05-28 04:39	20m	-5 / +5	EA4RKC	-16 / -19	3	Partial capture
05-28 04:36	20m	-4 / -	DH5YBE	- / -16	2	✓ Closing fragment
05-28 04:32	20m	-2 / -	KN6MLT	- / -12	2	✓ Closing fragment
05-28 04:28	20m	-4 / -	AI5FZ	- / -17	2	✓ Closing fragment
05-28 04:27	20m	- / -13	R6DYK	+4 / -	3	Partial capture
05-28 04:22	20m	- / -	RD4FD	-10 / -	2	Partial capture
05-28 04:22	20m	- / -	SV3AUW	-15 / -	4	Partial capture
05-28 04:20	20m	- / -	R3EDI	+14 / -	2	Partial capture
05-28 04:20	20m	- / -	RA4M	-23 / -	2	Partial capture
05-28 04:19	20m	- / -	RX9WM	+5 / -	3	Partial capture
05-28 04:18	20m	-2 / -16	RA6FVE	-1 / -15	4	✓ Full exchange observed
05-28 04:16	20m	-7 / -	SP6MLF	- / -13	2	✓ Closing fragment
05-28 04:15	20m	- / -	RA4M	-10 / -	3	Partial capture
05-28 04:14	20m	-10 / -	F1TRF	- / -16	2	✓ Closing fragment
05-28 04:11	20m	-4 / -	RL2Y	-6 / -18	4	✓ Closing observed
05-28 04:09	20m	- / -	R9FDM	+10 / -	2	Partial capture
05-28 04:06	20m	-13 / -	F5LNU	- / -11	3	✓ Closing fragment
05-28 04:01	20m	- / -	R9FDM	+4 / -	7	Partial capture
05-28 04:01	20m	- / -	UA3NFG	-10 / -	2	Partial capture
05-28 03:57	20m	- / -	RA4M	-16 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
054230 -12  891  LB9KI TI5RTZ -11 (x2)
054315 -17  828  TI5RTZ LB9KI 73
054330  -7  890  SP3JHY TI5RTZ -18 (x2)
054430 -14  891  CQ TI5RTZ EK70
054600  -9  890  DH1JG TI5RTZ -17
054615 -19 1129  TI5RTZ UB3GCX KO92 (x2)
054700  -1  891  JA8BQW TI5RTZ -19
054715 -15 1129  TI5RTZ UB3GCX KO92
054730  +0  890  JA8BQW TI5RTZ -19 (x3)
055230 -13  891  CQ TI5RTZ EK70

40m

UTC    dB Audio  Message
042100 +18  442  TI5RTZ DL7BO -19 (x2)
042330  +5  750  TI5RTZ II9MESC -12

Decoder S/N history by band

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