R8DV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: MO08

Receiver-side FT8 activity involving R8DV, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-05.

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 23 FT8 messages attributed to R8DV as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 80 m (22%). Most decodes (52%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 5 20m · 18

First attributed message: 2026-06-08
Last attributed message: 2026-09-05 16:40 UTC

Observed FT8 message patterns

Attributed sample: 23 messages
Active dates: 7 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 11.

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 R8DV in decoded directed-looking exchanges:

R2EA/P · European Russia ×2 UA3DPM · European Russia R3GO · European Russia R4FDK · European Russia R4GM · European Russia R6FFB · European Russia R6KA · European Russia RA3LBW · European Russia RM5F · European Russia RT2P · European Russia UA4PPQ · European Russia RI1ZR · European Russia

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 R8DV

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: MO08 · 11 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,675 km (approx.)
Last such locator decoded: 2026-09-05 16:39 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	R8DV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-22 16:40	160m	- / -3	UA4PPQ	-11 / -	4	✓ Closing fragment
09-22 16:38	160m	- / -19	R6KA	-5 / -	4	✓ Closing fragment
09-18 21:13	160m	- / -	RM5F	-18 / -	2	✓ Closing fragment
09-18 21:12	160m	- / -20	RA3LBW	+5 / -	3	✓ Closing fragment
09-18 21:10	160m	- / -5	R4GM	-8 / -	2	✓ Closing fragment
09-18 20:51	160m	- / -5	R4FDK	-15 / -	2	✓ Closing fragment
09-18 16:55	80m	- / -8	RK6MC	-4 / -	3	✓ Closing fragment
09-18 16:40	160m	- / -16	RT2P	-23 / -	2	✓ Closing fragment
09-11 21:13	160m	- / -26	R6FFB	-3 / -	4	✓ Closing fragment
09-11 21:13	160m	- / -6	UB3IBG	-14 / -	2	Partial capture
09-11 16:50	160m	- / -11	R3GO	-4 / -	2	✓ Closing fragment
09-08 16:02	40m	- / -	RZ5D	-14 / -	2	Partial capture
09-05 16:39	80m	-18 / -	R8AIJ	- / -16	4	✓ Closing fragment
09-02 16:05	80m	- / -5	R9CS/P	+1 / -	2	✓ Closing fragment
08-28 00:38	80m	- / -21	IK6DLK	+3 / -	3	✓ Closing fragment
08-28 00:37	80m	- / -14	R2EA/P	-2 / -	2	✓ Closing fragment
08-03 12:30	20m	-6 / -	<...>	- / -	2	Partial capture
07-27 23:09	40m	- / -12	R2EA/P	-11 / -	2	✓ Closing fragment
07-25 11:00	10m	- / -	PI4DX	-2 / -	3	Partial capture
07-19 07:07	10m	- / +3	UA3DPM	-10 / -	3	✓ Closing fragment
07-17 16:42	10m	- / -	SV2CLJ	-7 / -	4	Partial capture
07-05 15:22	20m	-13 / -	RI1ZR	- / -6	3	✓ Closing fragment
07-04 15:55	20m	-7 / -	RA6OY	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
211045  -5 2414  R8DV R4GM -05 (x2)
211215  +8  768  R8DV RA3LBW KO54 (x2)
211315 -16 1105  R8DV RM5F KO85
211315  +1  768  R8DV RA3LBW 73
211415 -19 1104  R8DV RM5F 73
163800  -3 1657  R8DV R6KA KN75 (x2)
164000 -10 2095  R8DV UA4PPQ LO54
164000  -5 1657  R8DV R6KA R-19
164030 -13 2095  R8DV UA4PPQ LO54
164030  -4 1657  R8DV R6KA 73
164100 -14 2095  R8DV UA4PPQ R-03 (x2)

80m

UTC    dB Audio  Message
003815  +7 1417  R8DV IK6DLK JN63 (x3)
160500  +0 2520  R8DV R9CS/P R-05 (x2)
163915 -13  694  R8AIJ R8DV MO08 (x2)
164000 -13 1338  R8DV UB4FGK LO33
164015 -20  694  R8AIJ R8DV R-16 (x2)
164130  -8  598  R8DV R6TA LN13
165515  -2 1129  R8DV RK6MC KN97 (x3)
165615 -14 1207  R8DV RA6ZD KN98

40m

UTC    dB Audio  Message
230815 -16 1337  R8DV UI6O RRR
230845  -4  506  R8DV IK6DLK JN63
230915 -12 2516  R8DV R2EA/P R-12 (x2)
160230 -15  435  R8DV RZ5D KN75 (x2)

20m

UTC    dB Audio  Message
155545  -8  905  RA6OY R8DV MO08 (x2)
152245 -13 2507  RI1ZR R8DV MO08 (x2)
152430  +0 2999  R8DV RR73; RX6CC <RI1ZR> +12
152445 -13 2556  RI1ZR R8DV 73
123045  -7 2754  <...> R8DV MO08 (x2)

10m

UTC    dB Audio  Message
164200 -10  709  R8DV SV2CLJ KN10 (x4)
065430 -13  701  R8DV DA6CH JO51
070700 -11 2359  R8DV UA3DPM KO95 (x3)
110045  -5  984  R8DV PI4DX JO21 (x3)

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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