R3ZMM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO90

Receiver-side FT8 activity involving R3ZMM, decoded by SO8OO in southeastern Poland. 220 related FT8 messages, 7 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 40 UTC dates. Heard between 2026-05-22 and 2026-08-20.

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

220

Related messages

CQ messages

UTC dates heard

-6 dB

Mean decoder S/N

Bands

80m 20m 40m 10m 160m

First seen: 2026-05-22
Last seen: 2026-08-20 17:38 UTC

Frequent QSO partners observed at SO8OO

Stations R3ZMM worked most often, as logged from our receiver:

R95WTA · Asiatic Russia ×4 RM5F · European Russia ×3 R6ML · European Russia ×3 R3HX/P · European Russia ×2 UB0SMX/P · Asiatic Russia ×2 R4FDD · European Russia ×2 UG0B/P · Asiatic Russia ×2 RZ5D · European Russia ×2 R6LNH · European Russia ×2 R50RKZ · European Russia ×2 RT2P · European Russia ×2 RA3TOS · European Russia

Activity Heatmap

Locator transmitted by R3ZMM

Approximate centre of KO90, decoded 2026-08-20 19:37 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	R3ZMM S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-20 19:37	80m	-5 / +3	UG4L	-2 / +3	5	✓ Full exchange observed
08-20 19:34	80m	-1 / +6	UB5MBA	-18 / -	5	✓ Closing observed
08-20 19:33	80m	-2 / -	EB5RCA	- / -	3	Partial capture
08-20 18:21	80m	+1 / +1	UB3LBU	-6 / 0	5	✓ Full exchange observed
08-20 18:19	80m	+5 / -	R6ML	0 / -2	6	✓ Full exchange observed
08-20 18:17	80m	+4 / +2	RC2DD	-3 / +2	5	✓ Full exchange observed
08-19 19:50	160m	-8 / -10	R0QBB/3	-6 / +2	4	Partial capture
08-19 19:18	160m	-16 / -	RV4AS	- / +2	2	✓ Closing fragment
08-19 19:09	160m	-17 / -5	RM5F	-14 / 0	5	✓ Full exchange observed
08-19 18:36	160m	-16 / -	R3DFE/M	- / -13	8	Partial capture
08-18 20:26	80m	-1 / -13	G4YKQ	-2 / -10	5	✓ Full exchange observed
08-18 20:08	160m	-15 / -	R4CBQ	- / -	3	Partial capture
08-17 05:16	20m	+6 / -	EB3JT	+4 / -3	5	✓ Closing observed
08-17 05:14	20m	+6 / -	K7NN	- / -9	4	✓ Closing fragment
08-17 05:13	20m	+4 / -	EB3JT	- / -	2	✓ Closing fragment
08-17 05:09	20m	+5 / -	RI1ANC	- / -11	8	✓ Closing fragment
08-16 19:31	20m	-15 / +6	RA3M	-13 / -	2	✓ Closing observed
08-16 19:27	20m	-2 / -	K1WZC	- / -	2	Partial capture
08-15 20:28	160m	0 / -	UA0SCF	- / -	3	Partial capture
08-15 20:23	160m	+2 / -	R1NBC	- / -9	4	✓ Closing fragment
08-15 20:16	160m	+6 / +5	RA3WAK	+6 / -9	4	✓ Full exchange observed
08-15 20:15	160m	0 / -15	SP1MGM	+6 / -2	7	✓ Full exchange observed
08-15 20:15	160m	+3 / -2	SQ2BXI	+22 / -2	4	✓ Full exchange observed
08-15 20:13	160m	+4 / -16	PA3FR	-9 / -12	5	✓ Full exchange observed
08-15 19:17	160m	-12 / +1	HA3IS	-4 / -18	4	✓ Full exchange observed
08-15 19:00	160m	-7 / -9	UA3RCW	-18 / -5	9	✓ Full exchange observed
08-15 17:55	80m	+12 / -	<...>	- / -14	5	Partial capture
08-15 17:36	80m	+13 / -	RA1AUS/P	- / -17	10	✓ Closing fragment
08-14 20:23	160m	-1 / -13	R4NBV	-12 / -	4	✓ Closing observed
08-14 19:05	160m	-9 / -	<...>	- / -14	2	Partial capture
08-14 18:39	80m	+10 / -	<...>	- / -3	2	Partial capture
08-14 18:31	80m	-1 / +3	R50RKZ	+8 / -	3	Partial capture
08-14 18:28	80m	+6 / -	R6DOB/7	- / -4	2	Partial capture
08-14 18:27	80m	0 / -	<...>	- / -	3	Partial capture
08-14 18:25	80m	+1 / -	R6DOB/7	- / -	3	Partial capture
08-13 18:45	160m	-9 / -	RA1AGA	- / -	3	Partial capture
08-13 18:37	80m	+18 / -	<...>	- / -1	4	Partial capture
08-12 21:00	80m	+5 / -	CT7AUT	- / -15	3	✓ Closing fragment
08-12 20:47	160m	-6 / -	CT2GQA	- / -	3	Partial capture
08-12 20:42	160m	-6 / -	LB7ZG	- / -9	2	✓ Closing fragment
08-12 20:40	160m	-4 / -	CT2GQA	- / -	3	Partial capture
08-12 20:33	160m	-7 / -	R6FFE	- / -7	3	✓ Closing fragment
08-12 20:30	160m	-9 / -	CT2GQA	- / -	6	Partial capture
08-12 16:06	80m	-7 / -	R2DP	-19 / +2	5	✓ Full exchange observed
08-12 15:58	80m	-10 / -	UA0ACG	- / -13	6	✓ Closing fragment
08-11 19:10	80m	0 / -	RA1AUS/P	- / -	2	Partial capture
08-11 18:58	80m	+2 / -15	RQ3D	-24 / -2	4	✓ Full exchange observed
08-11 18:56	80m	+4 / -	RV3SBS/P	- / -7	3	✓ Closing fragment
08-04 20:18	40m	-12 / -	TJ1GD/P	- / -	3	Partial capture
08-04 19:55	80m	-4 / -	<...>	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
182245  -9 1496  R3ZMM UB3LBU 73
182700  +3 1184  PB0F R3ZMM KO90
193315  -2 1308  EB5RCA R3ZMM KO90 (x3)
193430 -14 2085  R3ZMM UB5MBA KO97 (x3)
193545  -1 1308  UB5MBA R3ZMM RR73
193600 -17 2085  R3ZMM UB5MBA 73
193730  -5 1308  UG4L R3ZMM KO90
193745  -2  908  R3ZMM UG4L +03
193800  -5 1308  UG4L R3ZMM R+03
193815  -3  908  R3ZMM UG4L RR73
193830  -6 1308  UG4L R3ZMM 73

160m

UTC    dB Audio  Message
184045 -15 1360  R3DFE/M R3ZMM R-13 (x3)
190930 -17 1463  RM5F R3ZMM KO90
190945 -16  888  R3ZMM RM5F -05
191000 -15 1463  RM5F R3ZMM R+00
191015 -13  888  R3ZMM RM5F RR73
191030 -19 1463  RM5F R3ZMM 73
191745 -20 1463  UB6OAK R3ZMM RR73
191815 -17 1463  RV4AS R3ZMM R+02 (x2)
195000  -6 1179  <R0QBB/3> R3ZMM KO90 (x2)
195045  -6  705  R3ZMM R0QBB/3 -10
195100 -10 1179  R0QBB/3 R3ZMM R+02

20m

UTC    dB Audio  Message
051100  +5 2788  RI1ANC R3ZMM KO90 (x4)
051330  +1 2784  EB3JT R3ZMM RR73 (x2)
051430  +6 2783  K7NN R3ZMM -09 (x4)
051630  +4 2781  EB3JT R3ZMM RR73 (x3)
051745  +4 2787  R3ZMM EB3JT RR73
051800  +6 2780  EB3JT R3ZMM 73

40m

UTC    dB Audio  Message
164945 -13 2417  R50RKZ R3ZMM KO90
165030 -14 2256  R3ZMM RR73; SP3HYK <...> -14
165045  -9 2417  R50RKZ R3ZMM 73
165630  -5 2417  UB0SMX/P R3ZMM KO90 (x4)
175115  -9 2419  UB3AYQ R3ZMM KO90
175130 -20 1790  R3ZMM UB3AYQ +08
175145  -9 2419  UB3AYQ R3ZMM R-03 (x2)
201815 -13 2285  TJ1GD/P R3ZMM KO90 (x3)
194115  -1 2642  <...> R3ZMM R-20

10m

UTC    dB Audio  Message
064545 -10 1234  DN9AD R3ZMM RR73 (x2)
064645 -10 1233  RW4F R3ZMM -02 (x3)
064915  -1 1229  <...> R3ZMM KO90 (x2)
065045  -5 1227  R9FF R3ZMM -08 (x2)
065645 -11 1221  <...> R3ZMM KO90 (x6)

Decoder S/N history by band

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