RV3DBV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO96

Receiver-side FT8 activity involving RV3DBV, decoded by SO8OO in southeastern Poland. 496 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 35 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 496 FT8 messages attributed to RV3DBV as the transmitting token by decoded message structure across 35 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (52%), followed by 20 m (33%) and 80 m (11%). Most decodes (54%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

496

Messages attributed

UTC dates decoded

152

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 57 40m · 258 20m · 162 10m · 19

First attributed message: 2026-06-06
Last attributed message: 2026-09-20 14:49 UTC

Observed FT8 message patterns

Attributed sample: 496 messages
Active dates: 35 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 108, moderate (-15 to -9 dB) 179, strong (≥ -8 dB) 209.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with RV3DBV in decoded directed-looking exchanges:

F1PBZ · France ×2 PA3EWP · Netherlands ×2 R3PLN/P · European Russia ×2 CE2SV · Chile CT7AUT · Portugal EA8UP · Canary Islands LZ1EV · Bulgaria R6DOB · European Russia R6TA · European Russia RL1B · European Russia 2I0WAI · Northern Ireland 5Z4VJ · Kenya

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to RV3DBV

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: KO96 · 288 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,353 km (approx.)
Last such locator decoded: 2026-09-20 14:49 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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	RV3DBV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 04:09	40m	-20 / -	SM7TZK	- / -9	2	✓ Closing fragment
09-20 03:51	40m	-14 / -4	UN7LZ	-12 / -	4	✓ Closing observed
09-19 19:13	80m	-12 / -	RK9UE	- / -2	2	Partial capture
09-19 18:59	40m	-9 / -9	II6IALU	-14 / -	2	Partial capture
09-19 18:03	80m	-15 / -12	R9SS	-14 / -14	3	✓ Full exchange observed
09-19 17:50	40m	+2 / -	Z34CMF	- / -	2	Partial capture
09-19 17:45	80m	-13 / -1	R1TAX	-12 / -11	3	Partial capture
09-19 15:41	40m	-5 / -2	RT4A/P	-14 / +6	3	✓ Full exchange observed
09-19 14:35	40m	-14 / +3	ES5RY	-16 / -	4	✓ Full exchange observed
09-18 17:07	40m	- / -11	RN3TT	-6 / -	2	✓ Closing fragment
09-18 04:41	40m	-11 / -	DK8IZ	+4 / -4	4	✓ Closing observed
09-18 03:44	40m	-20 / -	LZ936BA	- / -8	2	Partial capture
09-18 02:52	80m	-16 / -9	DL5DQZ	-3 / -18	4	✓ Full exchange observed
09-18 02:45	80m	- / -7	RD9M/3	+6 / -	2	Partial capture
09-18 02:44	80m	- / -15	S58MU	+6 / -	3	✓ Closing fragment
09-18 02:38	40m	0 / -	TA3NK	- / -15	2	✓ Closing fragment
09-18 02:35	40m	+2 / -	LZ936BA	- / -17	2	Partial capture
09-18 02:33	40m	+2 / -	ER1WK/QRP	- / -	2	Partial capture
09-18 02:29	80m	- / -18	ON1JP	-14 / -	5	Partial capture
09-18 02:28	80m	- / -6	ER3ZW	+16 / -	2	✓ Closing fragment
09-12 17:51	80m	- / -9	R4AGE/P	-18 / -	2	Partial capture
09-12 17:41	80m	-14 / -	R4AGE/P	- / 0	2	Partial capture
09-12 16:30	40m	-19 / -3	R4PFY	-10 / -	2	Partial capture
09-12 16:23	80m	-13 / -	RT4A/P	- / +10	4	Partial capture
09-12 16:22	80m	-16 / -	R5ACQ	-6 / -	4	✓ Closing observed
09-12 16:19	80m	-9 / -9	RU3T	+1 / -	3	✓ Closing observed
09-12 16:17	80m	-17 / +6	RT4A/P	-9 / -	3	Partial capture
09-12 16:03	40m	-17 / -9	PA3EWP	+2 / -8	5	✓ Full exchange observed
09-12 04:38	40m	- / -13	PE1NAO	0 / -	2	✓ Closing fragment
09-11 13:42	40m	-13 / -	UB3ADO/P	- / -14	2	Partial capture
08-30 14:00	20m	-20 / -11	G8XDD/P	-9 / -	5	Partial capture
08-25 23:31	40m	+4 / -	TN8GD	- / -	2	Partial capture
08-25 23:27	40m	-10 / -11	PB7TT	-6 / +5	5	✓ Full exchange observed
08-25 23:23	40m	-2 / -	TA3TCW	- / -	2	✓ Closing fragment
08-25 23:22	40m	-5 / +4	4X5JK	-10 / -2	4	✓ Full exchange observed
08-25 23:19	40m	-8 / -	RZ9UF/M	- / -2	3	Partial capture
08-25 23:17	40m	-7 / -8	CS8ABF	-10 / -	3	✓ Closing observed
08-25 23:16	80m	- / -21	IR7MGGC	+4 / -	3	Partial capture
08-25 23:11	80m	- / -16	LB9ZG	0 / -	2	✓ Closing fragment
08-25 23:09	80m	-8 / -	EA6Y	- / -	2	Partial capture
08-25 23:07	40m	-8 / -	TN8GD	- / -	2	Partial capture
08-24 16:39	20m	- / -5	PA3EWP	+24 / -	2	✓ Closing fragment
08-23 17:23	40m	-4 / -3	UN2NC	-5 / -8	3	Partial capture
08-23 17:10	40m	-2 / -3	UB2FEK	-4 / -	3	✓ Closing observed
08-23 17:08	40m	-6 / -	EW6PG	- / -	2	Partial capture
08-23 14:13	10m	- / -24	LZ1EV	0 / -	2	✓ Closing fragment
08-23 11:50	20m	-8 / -6	DL7ARV	-6 / -3	4	Partial capture
08-23 11:49	20m	-6 / +8	RW6B	-6 / -	4	✓ Closing observed
08-23 11:41	20m	-6 / -12	M0PAX	-2 / -10	4	Partial capture
08-23 05:24	20m	-11 / -	SM2ODB	- / -12	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
154130 -14 1750  RV3DBV RT4A/P R-02 (x2)
175015  +3  647  Z34CMF RV3DBV KO96 (x2)
182030  -8 1779  RV3DBV II4IANT -15
185900  -9 1380  II6IALU RV3DBV KO96
185915 -14 1380  RV3DBV II6IALU -09
035115 -19 2489  UN7LZ RV3DBV KO96
035130 -16 2489  RV3DBV UN7LZ -04 (x2)
035215 -10 2489  UN7LZ RV3DBV 73
040945 -17 1239  SM7TZK RV3DBV R-09 (x2)
144715 -17 2540  VJ6X RV3DBV KO96
144900 -22 1662  RA9HM RV3DBV KO96

80m

UTC    dB Audio  Message
025315  -4 2178  RV3DBV DL5DQZ RR73
025330 -16  614  DL5DQZ RV3DBV R-18
025345  -3 2178  RV3DBV DL5DQZ RR73
174530 -13 2090  R1TAX RV3DBV KO96
174545 -12 2089  RV3DBV R1TAX -01
174600 -13 2090  R1TAX RV3DBV R-11
175745 -18 2395  R2EA/P RV3DBV KO96
180330 -13  677  RV3DBV R9SS -12
180345 -15  677  R9SS RV3DBV R-14
180400 -16  677  RV3DBV R9SS RR73
180815 -24 2365  R3RRC/P RV3DBV 73
181400 -24 1952  OE3SGU RV3DBV KO96
191300 -13  677  RK9UE RV3DBV KO96 (x2)
191600 -20  986  LY2SA RV3DBV KO96

10m

UTC    dB Audio  Message
085700 -10 2589  RV3DBV OH6FSG -04
174415  -1 2757  RV3DBV RL6LP LN17 (x2)
075815  -7 1003  RV3DBV R6DOB KN95 (x4)
080045 -10  491  RV3DBV RL1B RR73
172815  -9 1581  RV3DBV CT7AUT -06 (x2)
173945 -18 1197  RV3DBV CS7BMX -01
174345  -4 2732  RV3DBV F1PBZ RR73
141330  -2 1233  RV3DBV LZ1EV -24 (x2)
101415 -11 2617  RV3DBV A92AE -20

20m

UTC    dB Audio  Message
115115  -5 1841  RV3DBV DL7ARV JO62
115200  -8 1736  DL7ARV RV3DBV -03
115215  -6 1841  RV3DBV DL7ARV R-06
115430  -8 2330  JH4MGU RV3DBV KO96
141945 -10 1631  RV3DBV 9A5MTV -10
163930 +29 2830  RV3DBV PA3EWP -05 (x2)
164645 -17 2003  RV3DBV JH5AVM RRR
091000 -20 1600  R4CBF/P RV3DBV KO96
140045 -20 1397  G8XDD/P RV3DBV KO96
140100  -7 1397  RV3DBV G8XDD/P -11 (x3)
140345 -22 1434  RV3DBV MW9VVX RRR
140400 -12 2146  RV3DBV G8XDD/P IO90

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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