SP5TZZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland

Receiver-side FT8 activity involving SP5TZZ, decoded by SO8OO in southeastern Poland. 93 related FT8 messages, observed on 40m, 20m, 10m, across 10 UTC dates. Heard between 2026-04-22 and 2026-07-05.

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

Related messages

CQ messages

UTC dates heard

-6 dB

Mean decoder S/N

Bands

20m 40m 10m

First seen: 2026-04-22
Last seen: 2026-07-05 18:07 UTC

Frequent QSO partners observed at SO8OO

Stations SP5TZZ worked most often, as logged from our receiver:

DL6UM · Fed. Rep. of Germany SV5BYP · Dodecanese RX9WM · Asiatic Russia A61CK · United Arab Emirates MM8WXA · Scotland M0CQL · England IU8UHK · Italy OJ0Z · Market Reef F5RRS · France Z61DX · Republic of Kosovo CT7AIU · Portugal UA0TP · Asiatic Russia

Activity Heatmap

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	SP5TZZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
06-16 21:26	20m	- / -2	SV5BYP	+5 / -	3	✓ Closing fragment
06-16 21:22	20m	- / -6	M0CQL	-15 / -	3	✓ Closing fragment
06-16 21:22	20m	- / -11	MW0KJN	-22 / -	2	Partial capture
06-16 21:17	20m	- / -15	IS0KNG	-10 / -	4	✓ Closing fragment
06-16 21:17	20m	- / -	SV5BYP	+3 / -	3	Partial capture
06-16 21:04	20m	- / -1	RX9WM	-10 / -	3	✓ Closing fragment
06-16 21:01	20m	- / -	M7LYG	-5 / -	3	✓ Closing fragment
06-16 21:00	20m	- / -11	MM8WXA	+6 / -	3	✓ Closing fragment
06-16 20:53	20m	- / -2	IU8UHK	-16 / -	6	✓ Closing fragment
06-16 20:46	20m	- / -3	F5RRS	+15 / -	4	✓ Closing fragment
06-16 20:46	20m	- / +1	I1FLC	-2 / -	3	✓ Closing fragment
06-16 20:42	20m	- / -10	SV1GYG	-2 / -	3	✓ Closing fragment
06-16 20:25	40m	+5 / -	A61CK	- / -12	2	✓ Closing fragment
06-16 20:22	40m	+6 / -	CT7AIU	- / -14	2	✓ Closing fragment
06-16 20:18	40m	+6 / -	IQ9BF	- / -20	4	✓ Closing fragment
06-16 20:16	40m	-2 / -	RL2F	- / -20	2	✓ Closing fragment
06-16 20:12	40m	-4 / -	SA6NHK	- / -22	2	✓ Closing fragment
06-16 20:10	40m	+2 / -	Z62NS	- / -13	2	✓ Closing fragment
06-11 19:46	40m	+2 / +3	DL6UM	+1 / -	4	✓ Closing observed
06-04 21:04	20m	- / -8	2E0UMK	-2 / -	10	Partial capture
06-04 19:37	40m	- / -8	YO9PH	-4 / -	2	Partial capture
06-04 19:25	40m	- / -3	DL7ACA	-4 / -	2	Partial capture
06-04 19:15	40m	+2 / -	UN8DSW	-10 / -14	3	✓ Closing observed
06-04 18:35	20m	- / -	BA3QIQ	-6 / -	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
211830 -11 1674  SP5TZZ IS0KNG -15
211830  +4 2012  SP5TZZ SV5BYP KM46
211900 -10 1674  SP5TZZ IS0KNG RR73
212200 -24 1384  SP5TZZ MW0KJN IO81
212230 -18 1512  SP5TZZ M0CQL IO93 (x3)
212330 -21 1385  SP5TZZ MW0KJN R-11
212600  +5 2012  SP5TZZ SV5BYP KM46 (x3)
212930 -21 1512  SP5TZZ F6GTO JN25
151330 -13  585  SP5TZZ TJ1GD/P R-02
141430 -17 1140  SP5TZZ IQ9BF R+04
200745  -7  748  SP5TZZ Z61DX 73

40m

UTC    dB Audio  Message
201330  +7  660  CT7AIU SP5TZZ -17
201430  -6 1661  SP3SWJ SP5TZZ -05
201630  -2 1848  RL2F SP5TZZ -20 (x2)
201815  +3  598  IQ9BF SP5TZZ -20 (x4)
202200  +6  660  CT7AIU SP5TZZ -14 (x2)
202400  +9  539  IK4LZH SP5TZZ -16
202530  +5  904  A61CK SP5TZZ -12 (x2)
202700  +3  931  SP56POZNAN SP5TZZ -07
202900 +10  557  CT1EOZ SP5TZZ RR73

10m

UTC    dB Audio  Message
191030  -3  379  SP5TZZ RR73; YO2UKG <...> -12

Decoder S/N history by band

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