RV3ZK — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving RV3ZK, decoded by SO8OO in southeastern Poland. 171 related FT8 messages, 5 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 31 UTC dates. Heard between 2026-05-24 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

171

Related messages

CQ messages

UTC dates heard

-8 dB

Mean decoder S/N

Bands

80m 20m 40m 10m 160m

First seen: 2026-05-24
Last seen: 2026-08-20 03:35 UTC

Frequent QSO partners observed at SO8OO

Stations RV3ZK worked most often, as logged from our receiver:

RT2P · European Russia ×4 TF4M · Iceland ×2 RA6ATZ · European Russia ×2 R95WTA · European Russia ×2 RZ5D · European Russia ×2 RZ3DZ · European Russia ×2 T22TT · Tuvalu ×2 PD0HLA · Netherlands ×2 F4HSB · France ×2 US1EA · Ukraine ×2 RM5F · European Russia ×2 ZR6FAR · South Africa

Activity Heatmap

Locator transmitted by RV3ZK

Approximate centre of KO90, decoded 2026-08-20 05:35 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	RV3ZK S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-20 05:35	20m	+8 / -15	AO25FDM	+7 / -9	3	Partial capture
08-20 05:33	20m	+2 / -	VK3KCD	- / -	4	Partial capture
08-20 05:29	20m	+18 / -	R3PLN/P	- / -15	4	Partial capture
08-20 05:22	20m	+7 / -	HK4D	- / -12	4	Partial capture
08-20 05:20	20m	+20 / -14	KZ2N	-6 / -22	5	✓ Full exchange observed
08-20 05:17	20m	+6 / -	R2XM	- / -13	3	✓ Closing fragment
08-20 05:15	20m	+6 / -10	UA3VVA	-10 / -20	4	✓ Full exchange observed
08-16 19:56	160m	-5 / -	SP6AXW	- / -	10	Partial capture
08-16 19:51	160m	-5 / -16	PA3FR	-6 / -23	6	✓ Full exchange observed
08-16 19:48	160m	-4 / -13	SQ2BXI	+16 / -9	4	✓ Full exchange observed
08-16 19:47	160m	-6 / -10	YO3JW	-3 / -15	5	✓ Full exchange observed
08-16 19:46	160m	-7 / -	R4HLG	- / -19	2	✓ Closing fragment
08-13 18:19	160m	-4 / -5	R6ZCE	-18 / +4	5	✓ Full exchange observed
08-13 18:16	160m	-8 / -9	RU3DBT	-20 / -7	5	✓ Full exchange observed
08-13 18:15	160m	-3 / -8	RC1TF	-16 / -7	5	✓ Full exchange observed
08-12 17:29	20m	-8 / -	ZR6FAR	- / -16	4	✓ Closing fragment
08-12 17:24	80m	+4 / 0	RA6ATZ	0 / 0	6	✓ Full exchange observed
08-12 17:22	80m	+3 / -	RV3SBS/P	- / -3	4	✓ Closing fragment
08-12 17:21	80m	-1 / -	R50RKZ	-7 / +2	4	✓ Full exchange observed
08-11 15:52	20m	-7 / -	<...>	- / -9	2	Partial capture
08-11 15:50	20m	-5 / -	VU2RWH	- / -	2	Partial capture
08-11 15:48	20m	-6 / -	<...>	- / -8	2	Partial capture
08-11 15:43	20m	-24 / -	<...>	- / -14	2	Partial capture
08-11 15:41	20m	- / +3	EW8CW	-16 / -	2	✓ Closing fragment
08-10 19:59	20m	-6 / -	UA3SNB	- / -21	3	✓ Closing fragment
08-10 19:54	20m	0 / -	7Z1BQ	- / -18	3	✓ Closing fragment
08-10 19:53	20m	- / -	EU6UE	-8 / -	2	✓ Closing fragment
08-10 19:47	20m	+1 / -	<...>	- / -	5	Partial capture
08-10 19:41	20m	+2 / -	<...>	- / -26	4	Partial capture
08-10 19:37	20m	+2 / -	UA1AQC	- / -15	3	✓ Closing fragment
08-10 19:31	160m	0 / -	OH0ERF	- / -	5	Partial capture
08-10 19:29	160m	-4 / -	F5OHS	- / -	2	Partial capture
08-10 19:26	160m	-1 / -	R1MA	- / -4	4	✓ Closing fragment
08-10 19:23	160m	+4 / -	OH0ERF	- / -	3	Partial capture
08-10 19:20	20m	+4 / -	<...>	- / -17	2	Partial capture
08-10 19:18	20m	+12 / -	JK1ATM	- / -18	3	✓ Closing fragment
08-10 19:16	20m	-3 / -	TF4M	-17 / -6	3	✓ Closing observed
08-10 19:07	20m	+4 / -	8B81KB	- / -	2	Partial capture
08-10 19:04	20m	-3 / -	2E0JPO/P	- / -	6	Partial capture
08-10 19:00	20m	-2 / -5	TT1GD	-6 / -4	4	✓ Full exchange observed
08-04 19:01	160m	-13 / -	RA9YTI	- / -12	3	✓ Closing fragment
08-02 20:43	160m	+6 / -6	5Z4AB	-15 / -10	22	✓ Full exchange observed
07-30 20:18	160m	+7 / 0	SP2HMT	-4 / -15	7	✓ Full exchange observed
07-30 20:15	160m	+8 / +6	S52R	-12 / -20	6	✓ Full exchange observed
07-30 20:15	160m	+6 / -13	F5RRS	-6 / -11	8	✓ Full exchange observed
07-30 20:13	160m	+9 / +1	SP7SEK	+12 / -1	6	✓ Full exchange observed
07-30 20:12	160m	+10 / -	OM1AN	- / -	2	Partial capture
07-30 20:09	160m	+8 / -10	R2LAF/P	-16 / +3	6	✓ Full exchange observed
07-30 20:05	40m	+1 / -	ZS6OB	- / -10	4	✓ Closing fragment
07-30 19:58	40m	-6 / -	TF4M	- / -17	9	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
052330  +8 1159  HK4D RV3ZK KO90 (x3)
052800 +11 1161  ZL1RPC RV3ZK RR73
052945 +12 2807  R3PLN/P RV3ZK KO90 (x4)
053315  -2 1971  VK3KCD RV3ZK KO90 (x4)
053530  +3  583  AO25FDM RV3ZK KO90
053545  +7  583  RV3ZK AO25FDM -15
053600 +14  583  AO25FDM RV3ZK R-09

160m

UTC    dB Audio  Message
195215  -5 1497  PA3FR RV3ZK KO90
195230  -9 1571  RV3ZK PA3FR -16
195245  -8 1497  PA3FR RV3ZK R-23
195300  -3 1571  RV3ZK PA3FR RR73
195315  -4 1497  PA3FR RV3ZK 73
195600  -7 1497  SP6AXW RV3ZK KO90 (x10)

80m

UTC    dB Audio  Message
172115  -2 2227  R50RKZ RV3ZK KO90
172130  -7 2228  RV3ZK R50RKZ +12
172145  -1 2227  R50RKZ RV3ZK R+02
172200 -10 2228  RV3ZK RR73; UB9MEU <...> -04
172215  -1 2227  R50RKZ RV3ZK 73
172245  +1  796  RV3SBS/P RV3ZK KO90 (x3)
172400  +0 1075  RV3ZK RA6ATZ KN96
172415  +2  796  RV3SBS/P RV3ZK 73
172430  -2 1076  RV3ZK RA6ATZ KN96
172445  +2  891  RA6ATZ RV3ZK +00
172500  +0 1075  RV3ZK RA6ATZ R+00
172515  +5  891  RA6ATZ RV3ZK RR73
172530  +2 1076  RV3ZK RA6ATZ 73

40m

UTC    dB Audio  Message
195815  -4 1741  TF4M RV3ZK KO90 (x9)
200345  -3 2049  VK6BAD RV3ZK KO90
200415  -6 1585  R2BIO RV3ZK KO90
200545  +1  959  ZS6OB RV3ZK KO90 (x4)

10m

UTC    dB Audio  Message
063830 -10 2260  BD6IIC RV3ZK R-18 (x2)
083645 -20 1904  R5KH RV3ZK KO90 (x3)
083815 -12 1848  EX8ABR RV3ZK KO90 (x6)
084345  -9 1247  R1LP RV3ZK R+05
084730 -10 1122  RD0L RV3ZK KO90 (x3)

Decoder S/N history by band

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