RV3DFC — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO95

Receiver-side FT8 activity involving RV3DFC, decoded by SO8OO in southeastern Poland. 249 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-17.

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 249 FT8 messages attributed to RV3DFC as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 10 m (8%) and 80 m (2%). Most decodes (80%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

249

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 6 40m · 220 20m · 3 10m · 20

First attributed message: 2026-06-09
Last attributed message: 2026-10-17 18:03 UTC

Observed FT8 message patterns

Attributed sample: 249 messages
Active dates: 21 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -22 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 134, moderate (-15 to -9 dB) 92, strong (≥ -8 dB) 23.

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 RV3DFC in decoded directed-looking exchanges:

9K2HS · Kuwait EA7GUK · Spain BG0BBX · China BG2GWN · China EH3ST · Spain EU1AFX · Belarus EU6UE · Belarus EV6Z · Belarus GM0SDV · Scotland IK3MLF · Italy OG5O · Finland OH5KNL · Finland

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 RV3DFC

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: KO95 · 162 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,309 km (approx.)
Last such locator decoded: 2026-10-17 18:02 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	RV3DFC S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-17 18:02	40m	-18 / -	R9SES	-19 / -7	4	✓ Closing observed
10-17 17:51	40m	-19 / -	SQ1R	- / -	2	Partial capture
10-17 17:49	40m	-13 / -	OK8UQ	- / -	2	Partial capture
10-17 17:15	40m	-10 / -13	IK3MLF	-6 / -	3	✓ Closing observed
10-17 16:49	40m	-14 / -7	RC1BM	-14 / -	5	✓ Closing observed
10-17 16:43	40m	-13 / -5	DB4VI	-9 / -	2	Partial capture
10-17 16:39	40m	-18 / -7	RG8G	-12 / -6	6	✓ Full exchange observed
10-17 16:37	40m	-14 / -	UC6W	- / -	3	Partial capture
10-17 16:23	40m	- / -12	SP3OCJ	0 / -	2	✓ Closing fragment
10-17 16:12	40m	-11 / -	UA9LKL	- / -	2	Partial capture
10-17 16:09	40m	- / -8	UC6D	-1 / -	3	Partial capture
10-17 16:07	40m	-9 / -	RU3GF	- / -	4	Partial capture
10-17 15:57	40m	-20 / -	RA6UAR	-7 / -2	2	✓ Closing observed
10-17 15:50	40m	-18 / -4	SA3LEN	-3 / -9	5	✓ Full exchange observed
10-17 06:31	40m	- / -19	S55A	-7 / -	4	✓ Closing fragment
10-16 18:28	40m	-16 / -	R8UJ	- / -	2	Partial capture
10-16 18:24	40m	-16 / -	EY7BM	- / -14	7	Partial capture
10-16 18:21	40m	-14 / -	BG0FQU	- / -	3	Partial capture
10-16 17:56	40m	-9 / -	GM0SDV	- / -2	3	✓ Closing fragment
10-16 17:54	40m	-11 / -	LA2VLA	- / -	2	Partial capture
10-16 17:38	40m	-21 / -	OH6GEP	-18 / -8	4	✓ Closing observed
10-16 17:36	40m	- / -2	ER3CT	-13 / -	2	Partial capture
10-16 13:20	40m	-21 / -	R0DZ	- / -	3	Partial capture
10-16 13:16	40m	-20 / +10	R2DWJ	-19 / +4	3	✓ Full exchange observed
10-16 13:11	40m	-24 / -	R6FFB	-20 / -	3	✓ Closing observed
10-16 13:05	40m	-21 / -	OI7AX	-7 / -	6	✓ Closing observed
10-16 12:49	10m	- / -22	EA7GUK	-7 / -	2	✓ Closing fragment
10-13 19:57	80m	-23 / -15	RV3YN	-6 / -7	3	Partial capture
10-13 19:55	80m	-23 / -	SP3BZU	- / -	3	Partial capture
10-13 19:48	40m	- / -18	GU4WRP	-1 / -	3	Partial capture
10-13 15:15	40m	-18 / -	R9JT	- / -	3	Partial capture
10-12 14:44	40m	-21 / -	UB8AHK	- / -	2	✓ Closing fragment
10-12 14:39	40m	- / +1	RU3OH	-6 / -	3	✓ Closing fragment
09-27 14:40	40m	-19 / -	UN2PL	- / -	2	✓ Closing fragment
09-27 14:36	40m	-19 / -	UA4CSK	- / -6	3	✓ Closing fragment
09-27 14:26	40m	-20 / -7	UB1AUW	-20 / -	3	✓ Closing observed
09-27 14:24	40m	-22 / +2	RN3QTA	-10 / +10	4	✓ Full exchange observed
09-27 14:21	40m	- / +7	EU1AFX	-16 / -	2	✓ Closing fragment
09-27 14:11	40m	- / -3	UA3QQG	-22 / -	2	✓ Closing fragment
09-27 14:02	40m	- / -16	R3DQT	-20 / -	2	✓ Closing fragment
09-26 09:42	10m	- / +3	9K2HS	-6 / -	2	✓ Closing fragment
09-25 08:44	40m	- / -16	SM7IUN	-13 / -	2	✓ Closing fragment
09-23 13:43	40m	-12 / -2	R6KY	-8 / -	8	✓ Closing observed
09-23 13:39	40m	-16 / 0	SQ9SET	0 / -9	5	✓ Full exchange observed
09-22 07:23	40m	- / -9	OG5O	-9 / -	2	✓ Closing fragment
09-20 17:08	40m	-2 / -	UA3IDQ	-3 / -3	4	✓ Full exchange observed
09-20 17:05	40m	-9 / -	EH3ST	- / -23	4	✓ Closing fragment
09-20 16:57	40m	-11 / -13	RC2P	+10 / -	3	✓ Closing observed
09-19 15:53	40m	- / -12	EU2ABK	-8 / -	2	Partial capture
09-19 15:50	40m	- / -11	UA4PPQ	-5 / -	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
171815  -8 1929  RV3DFC EW4DX KO23
172145 -14 1591  BG0BBX RV3DFC 73
172345 -14 1591  UA9CMN RV3DFC KO95
174415 -20 1592  SP2MGR/P RV3DFC KO95
174915 -10 1591  OK8UQ RV3DFC KO95 (x2)
175115 -19 1591  SQ1R RV3DFC KO95 (x2)
175800 -17 1591  SH7KAT RV3DFC R-10
180100 -19 1591  OE1AES RV3DFC KO95
180200 -19 1591  R9SES RV3DFC KO95 (x2)
180245 -19  909  RV3DFC R9SES RR73
180300 -18 1591  R9SES RV3DFC 73
073345 -22 1774  RV3DFC SA7BYQ RR73

10m

UTC    dB Audio  Message
094230 -10  732  RV3DFC 9K2HS +03 (x2)
124915  -7 1941  RV3DFC EA7GUK -22 (x2)

80m

UTC    dB Audio  Message
195330 -22 1405  R7KEO RV3DFC KO95
195530 -24 1405  SP3BZU RV3DFC KO95 (x3)
195700 -24 1405  RV3YN RV3DFC KO95
195715  -6 2041  RV3DFC RV3YN -15
195730 -22 1405  RV3YN RV3DFC R-07

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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