TF5B — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Iceland Locator transmitted in a decoded message: IP05

Receiver-side FT8 activity involving TF5B, decoded by SO8OO in southeastern Poland. 3,757 related FT8 messages, 1,466 CQ messages, observed on 40m, 20m, 10m, across 62 UTC dates. Heard between 2026-05-26 and 2026-08-22.

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

3,757

Related messages

1,466

CQ messages

UTC dates heard

-10 dB

Mean decoder S/N

Bands

40m 20m 10m

First seen: 2026-05-26
Last seen: 2026-08-22 06:57 UTC

Frequent QSO partners observed at SO8OO

Stations TF5B worked most often, as logged from our receiver:

MW3FLI · Wales ×7 UR5WCS · Ukraine ×5 PD5GO · Netherlands ×4 M7KSV · England ×3 OE5WRO · Austria ×3 F5GPE · France ×3 F4HSB · France ×2 M7JZT · England ×2 ON3FW · Belgium ×2 SP1ZMO · Poland ×2 ON7IO · Belgium ×2 YT6AAA · Serbia ×2

Activity Heatmap

Locator transmitted by TF5B

Approximate centre of IP05, decoded 2026-08-22 08:57 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	TF5B S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 08:52	20m	- / -9	IW3AIS/P	-17 / -	3	Partial capture
08-22 08:46	20m	- / -3	RU3T	-2 / -	3	✓ Closing fragment
08-22 08:43	20m	- / -	HB9IUA	+2 / -	2	Partial capture
08-22 08:32	20m	- / -	IW2GKU	-10 / -	3	Partial capture
08-22 08:30	20m	- / -	HB9IUA	-11 / -	3	Partial capture
08-22 08:28	20m	- / -	YO2CR	-6 / -	2	Partial capture
08-22 08:25	20m	- / -	ES3NA	+1 / -	2	Partial capture
08-22 08:25	20m	-13 / -	SQ3DAB	- / -23	3	Partial capture
08-22 08:23	20m	- / -9	RU3T	+3 / -	2	Partial capture
08-22 08:20	20m	- / -	PD7PIN	-11 / -	2	Partial capture
08-22 08:07	40m	- / -5	SQ1MNG	-11 / -	9	Partial capture
08-22 08:00	40m	- / -	SP5BZA	+5 / -	4	Partial capture
08-22 07:56	40m	- / -14	DL6RDE	-6 / -	3	Partial capture
08-22 07:49	40m	- / -	PD1CIS	-15 / -	3	Partial capture
08-22 07:14	40m	- / -	ON5JV	-16 / -	2	✓ Closing fragment
08-22 06:51	40m	- / -3	OZ4MK	-20 / -	3	✓ Closing fragment
08-22 06:50	40m	- / -6	DK6WH	-7 / -	11	✓ Closing fragment
08-21 10:51	20m	- / -	DG2LA	-15 / -	2	Partial capture
08-21 10:41	20m	- / -	UA9CK	-15 / -	3	Partial capture
08-21 10:36	20m	- / +1	DL1SCZ	-13 / -	3	Partial capture
08-21 10:33	20m	- / -	9A5ADR	-3 / -	3	Partial capture
08-21 10:26	20m	- / -2	OK1VCB	-12 / -	3	✓ Closing fragment
08-21 10:25	20m	- / -	DL5KMR	-11 / -	2	Partial capture
08-21 10:23	20m	- / -3	HA1ZW	-3 / -	4	Partial capture
08-21 10:21	20m	- / -	US7UR	+6 / -	12	Partial capture
08-21 10:19	20m	- / -	DL2SEW	-15 / -	6	Partial capture
08-21 10:12	20m	- / -	US7UR	-6 / -	3	Partial capture
08-21 09:05	20m	- / -	PA1APR	-22 / -	3	Partial capture
08-21 09:05	20m	-12 / -	PD5GO	-14 / -16	4	✓ Closing observed
08-21 09:01	20m	-12 / +9	PA8H	-22 / -16	4	✓ Full exchange observed
08-21 08:59	20m	-15 / -	9A5RIS	- / -12	2	✓ Closing fragment
08-21 08:54	20m	- / -	DF5MS	-19 / -	5	✓ Closing fragment
08-21 08:51	20m	-18 / -	RA9MLJ	- / -15	3	Partial capture
08-21 08:49	20m	-17 / -	EA1CWR	- / -9	2	✓ Closing fragment
08-21 08:42	20m	- / -	IK4ANJ	-9 / -	3	Partial capture
08-21 08:38	20m	- / -	DF7TL	-14 / -	4	Partial capture
08-21 08:35	20m	-21 / -	K5RSB	- / -10	2	Partial capture
08-20 09:41	20m	- / -	DL4DD	-8 / -	2	Partial capture
08-20 09:37	20m	-20 / -	OH1LI	- / +2	3	✓ Closing fragment
08-20 08:57	20m	-19 / -	PD4HT	- / -5	2	✓ Closing fragment
08-20 08:53	20m	-17 / -	SP5TBR	-24 / -18	3	✓ Closing observed
08-20 08:48	20m	- / -9	R8ACF	-13 / -	2	✓ Closing fragment
08-20 08:41	20m	-19 / -	UR5WCS	- / -9	2	Partial capture
08-20 08:37	20m	-14 / -	M1OTA	- / -19	3	Partial capture
08-20 08:31	20m	- / -	DG1GHY	+5 / -	3	Partial capture
08-20 08:28	20m	-18 / -	F4NJT	-11 / -10	3	✓ Closing observed
08-20 08:27	20m	- / -	IK4LZH	+15 / -	4	Partial capture
08-20 08:19	20m	- / -	IK4LZH	+12 / -	4	Partial capture
08-20 08:15	20m	- / -	M3FGR	-15 / -	3	Partial capture
08-20 08:12	20m	-8 / +4	ON7IO	-17 / -8	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
084145 -13 1620  CQ TF5B IP05
084300  +5 2744  TF5B HB9IUA JN37 (x2)
084415 -16 1620  CQ TF5B IP05
084600  -9  671  TF5B RU3T LO16 (x3)
085115 -15 1621  CQ TF5B IP05                          a1 (x2)
085230 -15 2463  TF5B IW3AIS/P JN55 (x3)
085345 -12 1621  CQ TF5B IP05
085515 -16 1620  F1JIO TF5B -22
085715 -18 1621  CQ TF5B IP05

40m

UTC    dB Audio  Message
075700  -5 1661  TF5B DL6RDE -14 (x2)
080000  +4 2576  TF5B SP5BZA KO02 (x4)
080700 -10 1504  TF5B SQ1MNG JO72 (x9)

10m

UTC    dB Audio  Message
082130  +1 2785  TF5B F1PBZ +00

Decoder S/N history by band

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