RV3DAA — 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: KO84

Receiver-side FT8 activity involving RV3DAA, decoded by SO8OO in southeastern Poland. 34 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-11-01 and 2026-11-02.

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 34 FT8 messages attributed to RV3DAA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 40 m (38%). In this small sample, the estimated median decoder S/N was -4 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 21 40m · 13

First attributed message: 2026-11-01
Last attributed message: 2026-11-02 16:09 UTC

Observed FT8 message patterns

Attributed sample: 34 messages
Active dates: 2 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -13 to +2 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 24.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with RV3DAA in decoded directed-looking exchanges:

RV3YN · European Russia ×2 R4CCE · European Russia RA4ADF · European Russia R1QD · European Russia R3PLN · European Russia RK4UZ · European Russia UA1AEL · European Russia UR4LRG · Ukraine

Most frequent locator attributed to RV3DAA

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: KO84 · 12 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,150 km (approx.)
Last such locator decoded: 2026-11-02 16:08 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	RV3DAA S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 16:08	80m	-10 / -	RV3YN	-12 / -11	4	✓ Closing observed
11-02 16:04	80m	-13 / -	R1QD	- / -7	3	✓ Closing fragment
11-01 15:41	80m	+1 / -10	UA1AEL	+5 / -1	6	✓ Full exchange observed
11-01 15:40	80m	0 / -4	RV3YN	-8 / -7	8	✓ Full exchange observed
11-01 15:37	80m	+2 / -8	UR4LRG	+8 / +7	5	✓ Full exchange observed
11-01 15:18	80m	- / -	R3ICU	-12 / -	2	Partial capture
11-01 15:17	80m	-9 / -17	RK4UZ	-13 / -	5	✓ Closing observed
11-01 15:15	80m	-3 / +6	R3PLN	+4 / +2	5	✓ Full exchange observed
11-01 15:04	40m	-3 / -15	A60FD/31	-4 / -12	7	Partial capture
11-01 15:01	40m	-4 / -	RA4ADF	-8 / -12	5	✓ Closing observed
11-01 12:42	40m	- / -	DH2NJS	-13 / -	12	Partial capture
11-01 12:41	40m	-14 / -9	R4CCE	-20 / -4	4	✓ Full exchange observed
11-01 12:29	40m	-10 / -	R4PFY	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
154230  -2 2334  RV3YN RV3DAA R-07 (x2)
154315 -17 1012  RV3DAA R3ICU KO66
154400  +0 2334  UA1AEL RV3DAA RR73
154415 -10 1827  RV3DAA R1BED -10
154600  +3 2333  UA1AEL RV3DAA R-01 (x2)
160445 -14 1494  R1QD RV3DAA KO84 (x3)
160600 -24 1623  RV3DAA R3ICU KO66
160845 -13 2202  RV3YN RV3DAA KO84 (x2)
160930 -12 2202  RV3DAA RV3YN RR73
160945 -12 2202  RV3YN RV3DAA 73

40m

UTC    dB Audio  Message
124645 -12 1916  RV3DAA DH2NJS JO50 (x3)
150130  -6 2547  RA4ADF RV3DAA KO84 (x3)
150245  -8 2547  RV3DAA RA4ADF RR73 (x2)
150430  -3  917  A60FD/31 RV3DAA KO84 (x3)
150645  -6  917  RV3DAA A60FD/31 -15
150700  -7  916  A60FD/31 RV3DAA KO84
150715  -3  917  RV3DAA A60FD/31 -18
150730  -4  917  A60FD/31 RV3DAA R-12

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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