RV3IN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO77

Receiver-side FT8 activity involving RV3IN, decoded by SO8OO in southeastern Poland. 105 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-09-12 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 105 FT8 messages attributed to RV3IN as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (89%), followed by 40 m (11%). Most decodes (81%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -6 dB.

Overview

105

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 93 40m · 12

First attributed message: 2026-09-12
Last attributed message: 2026-09-20 05:06 UTC

Observed FT8 message patterns

Attributed sample: 105 messages
Active dates: 7 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -13 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 68.

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 RV3IN in decoded directed-looking exchanges:

UA4FKT · European Russia ×2 R2WAF · European Russia ×2 RU5X · European Russia ×2 DK7UY · Fed. Rep. of Germany OZ5AGJ · Denmark RN6MA · European Russia YO4NF · Romania 9A5E · Croatia DK7ZT · Fed. Rep. of Germany EH3ST · Spain EW8CW · Belarus HA7TM · Hungary

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 RV3IN

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: KO77 · 26 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,205 km (approx.)
Last such locator decoded: 2026-09-17 16:32 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	RV3IN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 05:05	40m	- / -	PE1NPS	+2 / -	3	Partial capture
09-20 05:04	40m	-4 / -4	DK7UY	-6 / +3	4	✓ Full exchange observed
09-20 05:03	40m	-8 / -	YO4NF	-1 / +10	2	✓ Closing observed
09-18 13:39	40m	- / -	UA4FKT	-5 / -	3	✓ Closing fragment
09-18 13:36	40m	-11 / +7	OZ5AGJ	-16 / -	3	✓ Closing observed
09-18 13:35	40m	- / -6	DK7ZT	-20 / -	2	Partial capture
09-18 13:34	40m	- / -6	RN6MA	-6 / -	2	✓ Closing fragment
09-17 16:31	80m	-3 / -10	RA3RDN	-5 / -	7	✓ Closing observed
09-17 16:31	80m	-14 / -	UA4CKN	-13 / +1	3	✓ Closing observed
09-17 16:30	80m	- / +1	RV9FF	-24 / -	2	✓ Closing fragment
09-17 16:30	80m	- / -	RA4P	-14 / -	2	Partial capture
09-17 16:27	80m	- / -1	UA3IAG	-12 / -	3	✓ Closing fragment
09-17 16:25	80m	-5 / -13	RX6DA	-4 / -	6	✓ Closing observed
09-17 16:25	80m	-7 / -17	UA6JQ	-10 / -14	8	✓ Full exchange observed
09-17 16:24	80m	- / -12	YO4NT	+2 / -	4	✓ Closing fragment
09-17 16:21	80m	-8 / -	R4HMI	- / +7	2	✓ Closing fragment
09-17 16:21	80m	-19 / -2	RA3WEO	-6 / +4	6	✓ Full exchange observed
09-17 16:21	80m	-18 / 0	YL2GJX	-2 / +6	7	✓ Full exchange observed
09-17 08:23	40m	- / -	DA1ST	-7 / -	4	Partial capture
09-17 04:02	80m	- / +6	DO1ID	+8 / -	2	Partial capture
09-17 04:01	80m	-18 / -	UA3YGP	-10 / +4	5	✓ Closing observed
09-17 04:01	80m	-13 / -	R2DRE	- / -	2	✓ Closing fragment
09-17 04:01	80m	-12 / -12	DK7ZT	+6 / -6	6	✓ Full exchange observed
09-17 03:59	80m	-6 / -	R3DGH	- / -1	2	✓ Closing fragment
09-17 03:59	80m	-8 / -10	HA7TM	+10 / -9	6	✓ Full exchange observed
09-17 03:57	80m	- / -	F4IIX	-17 / -	5	Partial capture
09-17 03:57	80m	- / -14	YO4NF	+5 / -	2	Partial capture
09-17 03:56	80m	-9 / -	SN1A	+1 / -8	2	Partial capture
09-16 20:01	80m	+6 / -	RA3WY	- / -2	2	✓ Closing fragment
09-16 20:00	80m	+8 / -16	DK7ZT	-6 / -10	4	Partial capture
09-16 19:59	80m	+6 / -11	9A5E	-1 / -13	5	✓ Full exchange observed
09-16 15:48	80m	-8 / -5	RC6OZ	-9 / -	4	✓ Closing observed
09-16 15:47	80m	-13 / +2	R1AV	-11 / -	4	✓ Closing observed
09-16 15:45	80m	-11 / -4	UA3QNA	+3 / +9	3	✓ Full exchange observed
09-16 15:43	80m	-12 / -	RA3TK	- / +7	2	✓ Closing fragment
09-16 15:41	80m	-10 / -	UA6HJT	- / -12	2	Partial capture
09-16 15:39	80m	-6 / -	RU5X	-18 / -5	3	✓ Closing observed
09-16 15:39	80m	-12 / -4	R4UA	-10 / +1	6	✓ Full exchange observed
09-16 15:37	80m	-10 / -	RV9CX	- / +2	3	✓ Closing fragment
09-16 15:36	80m	-11 / -2	RM2P	-18 / -3	5	✓ Full exchange observed
09-13 19:52	40m	- / -	IK6GPZ	+2 / -	8	Partial capture
09-13 19:48	40m	- / -10	R7GA	+2 / -	2	Partial capture
09-13 19:47	40m	-13 / -	SQ9SET	- / +2	2	Partial capture
09-13 16:26	80m	-2 / -18	RC7LX	-9 / -11	10	✓ Full exchange observed
09-13 16:26	80m	-4 / -4	RM3ZR	+3 / +3	5	✓ Full exchange observed
09-13 16:25	80m	-4 / +6	RA6Z	-8 / -2	4	✓ Full exchange observed
09-13 16:24	80m	0 / -	UB4CLH	- / -6	2	✓ Closing fragment
09-13 16:19	80m	- / -18	DK7ZT	-7 / -	4	Partial capture
09-13 16:19	80m	- / +4	RW3PI	+3 / -	2	Partial capture
09-13 16:18	80m	-6 / -17	R9DZ	-14 / -	9	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
133915 -13 2451  ON1DGN RV3IN R-13
133930  -4 2452  RV3IN UA4FKT LO23 (x3)
050315  +0 1907  RV3IN DK7ZT +09
050330  -8 2238  YO4NF RV3IN R+10
050345  -1 2238  RV3IN YO4NF RR73
050430  -4 2237  DK7UY RV3IN +03
050445  -4 2237  RV3IN DK7UY R-04
050500  -4 2237  DK7UY RV3IN RR73
050515  -1  486  RV3IN PE1NPS JO22
050515  -9 2237  RV3IN DK7UY 73
050600  -6 2236  DK7ZT RV3IN R-05
050615  +4  485  RV3IN PE1NPS JO22 (x2)

80m

UTC    dB Audio  Message
163045 -24 1590  RV3IN RV9FF R+01 (x2)
163130 -15 1815  UA4CKN RV3IN R+01
163145  -4 2358  RV3IN RA3RDN LO02
163200 -12 1815  UA4CKN RV3IN KO77
163215 -15 1079  RV3IN RA4P LO64
163215  -5 2358  RV3IN RA3RDN LO02
163245 -13  515  RV3IN UA4CKN RR73
163315  -7 2358  RV3IN RA3RDN LO02 (x4)
163500  -3 1814  RA3RDN RV3IN RR73
163530 -10 1815  RC1TF RV3IN R-09
163745 -19 1814  RV3IN UA3ON KO90

160m

UTC    dB Audio  Message
204400  -8  936  RV3IN RM5F KO85

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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