RZ3Z — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO80

Receiver-side FT8 activity involving RZ3Z, decoded by SO8OO in southeastern Poland. 466 related FT8 messages, observed on 40m, 20m, 10m, across 20 UTC dates. Heard between 2026-05-16 and 2026-08-11.

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

466

Related messages

CQ messages

UTC dates heard

-4 dB

Mean decoder S/N

Bands

20m 40m 10m

First seen: 2026-05-16
Last seen: 2026-08-11 16:04 UTC

Frequent QSO partners observed at SO8OO

Stations RZ3Z worked most often, as logged from our receiver:

R95WTA · European Russia ×2 YO9PH · Romania ×2 IQ7KM · Italy ×2 DC1ASE · Fed. Rep. of Germany ×2 EU3LA · Belarus RW9CC · Asiatic Russia UB5MBA · European Russia RN3N · European Russia DL2IR · Fed. Rep. of Germany RA6OD · European Russia PE1HPL · Netherlands DJ1TU · Fed. Rep. of Germany

Activity Heatmap

Locator transmitted by RZ3Z

Approximate centre of KO80, decoded 2026-06-21 06:28 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	RZ3Z S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-29 17:41	20m	-24 / -6	<...>	-7 / +1	2	Partial capture
07-29 16:58	20m	- / -20	HB10GBT	-14 / -	4	Partial capture
06-27 19:18	20m	- / -16	IR0RCAG	-2 / -	2	Partial capture
06-21 06:18	20m	-19 / -4	HB9FMC	-20 / -	2	✓ Closing observed
06-21 06:13	20m	-12 / -	<...>	- / -17	2	Partial capture
06-21 06:09	20m	-16 / -	R8QA	- / -18	2	Partial capture
06-21 06:07	20m	+4 / -	UB8CPH	- / -4	2	✓ Closing fragment
06-15 18:31	10m	- / -1	SV2KBB	-20 / -	2	✓ Closing fragment
06-15 15:06	10m	+5 / -	OK2XCG	- / -1	3	✓ Closing fragment
06-15 15:01	10m	+4 / -	SP9VEG	- / -	4	✓ Closing fragment
06-15 14:58	10m	- / -1	IK2ECC	-1 / -	3	Partial capture
06-15 14:54	10m	+21 / -1	EA7R	-15 / -2	3	Partial capture
06-15 14:53	10m	+12 / -	ON3VS	- / -16	2	Partial capture
06-15 14:51	10m	+10 / -	PY4STO	- / -9	3	✓ Closing fragment
06-15 14:48	10m	+14 / -	UA4LDP	- / -14	2	✓ Closing fragment
06-15 14:47	10m	+10 / -	RA4PIS	- / -6	2	✓ Closing fragment
06-15 14:46	10m	+18 / -	<...>	- / -	3	Partial capture
06-15 14:44	10m	+8 / -	DJ9FBA	- / -14	2	Partial capture
06-15 14:31	10m	+12 / -	WJ8PMX	- / +8	5	✓ Closing fragment
06-15 14:26	10m	+9 / +3	I3JOA	+4 / -4	5	✓ Full exchange observed
06-15 14:24	10m	+18 / -	OM8AMF	- / +10	2	Partial capture
06-15 14:23	10m	+20 / +1	9A3AUH	0 / -	3	✓ Closing observed
06-15 14:21	10m	+11 / -	DN9MAI	- / -20	3	✓ Closing fragment
06-15 14:18	10m	+17 / -	HA0AA	- / -	4	Partial capture
06-15 14:17	10m	- / -	RU6L	+5 / -	25	Partial capture
06-15 14:16	10m	+14 / -	OK2ZCH	- / -5	3	✓ Closing fragment
06-15 14:10	10m	+14 / -	LZ2RR	- / -	2	✓ Closing fragment
06-15 14:09	10m	- / -	RU6L	+4 / -	5	Partial capture
06-15 14:08	10m	+13 / -	OM3DX	- / -	3	✓ Closing fragment
06-15 14:06	10m	+16 / -	<...>	- / -15	2	Partial capture
06-15 14:06	10m	- / -	RU6L	-8 / -	2	Partial capture
06-15 14:02	10m	+17 / -	EA2EDI	- / -15	5	✓ Closing fragment
06-15 14:01	10m	+16 / -	CX3DMP	- / -12	2	✓ Closing fragment
06-15 13:57	10m	+11 / +6	IQ7KM	-18 / 0	5	✓ Full exchange observed
06-15 13:56	10m	+6 / -	EB5HRZ	-23 / -12	4	✓ Closing observed
06-15 13:33	10m	+5 / -	PY2KQ	- / -10	3	✓ Closing fragment
06-15 13:31	10m	+14 / -	EA4HTI	- / -7	3	✓ Closing fragment
06-15 13:29	10m	+4 / -	SP7AZA	- / -6	2	Partial capture
06-15 13:27	10m	+4 / -	OK1HEH	- / -19	2	✓ Closing fragment
06-15 13:25	10m	+6 / -	LW4HCL	- / -9	4	✓ Closing fragment
06-15 13:23	10m	+17 / -	LZ3QC	- / +7	3	✓ Closing fragment
06-15 13:13	10m	-5 / -	PT7PO	- / -	2	Partial capture
06-15 13:11	10m	+1 / -	9A3TF	- / -9	3	✓ Closing fragment
06-14 17:26	20m	-7 / -	IZ0AIO	- / -17	3	✓ Closing fragment
06-14 17:24	20m	+8 / -	HA5LOF	- / -	2	✓ Closing fragment
06-14 16:57	20m	- / -	LZ3YY	-14 / -	2	✓ Closing fragment
06-14 16:51	20m	-20 / -4	R7HC	-21 / -	2	✓ Closing observed
06-14 16:47	20m	-8 / -	RK4F	- / -13	2	✓ Closing fragment
06-14 16:45	20m	- / -	DL1ET	-2 / -	3	✓ Closing fragment
06-13 13:37	10m	- / -7	UA6HJT	+3 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
061445 -14 1152  <...> RZ3Z R-17
061815 -20 1910  RZ3Z HB9FMC -04
061900 -19 1910  HB9FMC RZ3Z 73
061945  -4  714  SP2SGZ RZ3Z KO80
062830 -11  369  <...> RZ3Z KO80
190200 -17 2176  RZ3Z PD2WL RR73
191830  +0 1094  RZ3Z IR0RCAG -16 (x2)
165800 -14 1213  RZ3Z HB10GBT -20 (x4)
174100  -7 1249  RZ3Z <...> -06
174115 -24 1249  <...> RZ3Z R+01
180400  -2  381  RZ3Z YO1BRANCUSI -17

10m

UTC    dB Audio  Message
145800  -4 1416  RZ3Z IK2ECC R-01 (x3)
150100  -7 1641  RZ3Z DN9SR 73
150130  +9 2540  SP9VEG RZ3Z KO80 (x4)
150630  +2 2622  OK2XCG RZ3Z KO80 (x3)
150800  -3 2033  EA7AH RZ3Z KO80
183130 -20 1642  RZ3Z SV2KBB -01 (x2)
203930 -22 1412  RZ3Z CT2JCB RR73

40m

UTC    dB Audio  Message
212030  +5 1621  I4USC RZ3Z 73
212100  +1 2339  PD0JHM RZ3Z KO80
212115  +4 2339  RZ3Z PD0JHM +01
212130  -5 2339  PD0JHM RZ3Z R-04
212145  +5 2339  RZ3Z PD0JHM RR73
212200  -3 2339  PD0JHM RZ3Z 73
212315  -8 1300  IQ8PC RZ3Z KO80
212330  -9 1300  RZ3Z IQ8PC -06
212345  -2 1300  IQ8PC RZ3Z R-14
212400 -11 1300  RZ3Z IQ8PC RR73
212415  +4 1300  IQ8PC RZ3Z 73
212730  -2  672  RZ3Z G0TKZ -07
212915  -6 1883  SM3LDP RZ3Z KO80
212930  +1  492  RZ3Z G0TKZ -07
213130  -4  646  RZ3Z II1NAP -11

Decoder S/N history by band

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