RN3DDW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving RN3DDW, decoded by SO8OO in southeastern Poland. 202 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-18.

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 202 FT8 messages attributed to RN3DDW as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (45%), followed by 20 m (41%) and 40 m (10%). Most decodes (75%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

202

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 2 80m · 7 40m · 20 20m · 83 10m · 90

First attributed message: 2026-06-09
Last attributed message: 2026-09-18 13:36 UTC

Observed FT8 message patterns

Attributed sample: 202 messages
Active dates: 11 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -16 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 91, strong (≥ -8 dB) 89.

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 RN3DDW in decoded directed-looking exchanges:

US1EA · Ukraine ×2 F4FSY · France R6FMK · European Russia R6MO · European Russia R7MP · European Russia R7NO · European Russia RA6ZD · European Russia RC6OZ · European Russia RG5A · European Russia RZ6LY · European Russia DM2DXA · Fed. Rep. of Germany R9CS/P · 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 RN3DDW

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: KO85 · 126 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-18 13:31 UTC

Other locator fields attributed to this token: KO86 (30) and KO84 (2).

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	RN3DDW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 13:31	40m	-7 / -	R4CCE	- / -	2	Partial capture
09-18 13:28	40m	-16 / -5	UB3ADO/P	-9 / -1	4	✓ Full exchange observed
09-16 15:08	40m	-13 / -6	UB3ZKO	-11 / -	3	✓ Closing observed
08-20 13:40	20m	- / +8	DM2DXA	+6 / -	2	✓ Closing fragment
08-20 11:30	20m	+6 / -	R9FDE/P	- / -	4	Partial capture
07-18 20:33	160m	-24 / -	<...>	- / -	2	Partial capture
07-16 05:03	20m	- / -	US1EA	-4 / -	2	✓ Closing fragment
06-25 12:21	10m	- / -16	F4FSY	-10 / -	2	✓ Closing fragment
06-25 10:52	10m	- / +1	R6FMK	-7 / -	3	✓ Closing fragment
06-25 10:47	10m	- / -5	US1EA	-11 / -	3	✓ Closing fragment
06-25 10:47	10m	- / -	RX3ASQ	-8 / -	4	Partial capture
06-25 10:46	10m	- / -	RA6ZD	-8 / -	2	✓ Closing fragment
06-25 10:39	10m	- / -	RX3ASQ	-8 / -	4	Partial capture
06-25 10:27	10m	- / -4	RZ6LY	-6 / -	2	✓ Closing fragment
06-25 10:22	10m	- / -	RX3ASQ	-9 / -	5	Partial capture
06-25 10:19	10m	- / +3	RA6ATZ	-11 / -	2	Partial capture
06-25 09:58	10m	- / -3	RC6OZ	-10 / -	2	✓ Closing fragment
06-25 09:51	10m	- / -1	RG5A	-10 / -	3	✓ Closing fragment
06-25 09:36	10m	- / -1	R7NO	-2 / -	2	✓ Closing fragment
06-25 09:33	10m	- / +3	R7MP	-15 / -	2	✓ Closing fragment
06-24 12:41	20m	- / -	F5IXN	-20 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
150815 -13  652  UB3ZKO RN3DDW KO85
150830 -10 1604  RN3DDW UB3ZKO -06 (x2)
132815 -21 2148  UB3ADO/P RN3DDW KO85
132830  -9  679  RN3DDW UB3ADO/P -05
132845 -14  760  UB3ADO/P RN3DDW R-01 (x2)
133100  -7 2822  R4CCE RN3DDW KO85 (x2)
133615 -13 2569  RA3RKA RN3DDW R+00

20m

UTC    dB Audio  Message
124100 -21 1601  RN3DDW F5IXN JN23 (x3)
054100 -22 1328  RN3DDW R4FDW -08
122645  -6 2948  RN3DDW R9CS/P 73
050345 -10 2630  RN3DDW US1EA R+25 (x2)
050715 -22 1662  RN3DDW UA6ANQ -05
152145 -13 2502  <...> RN3DDW R-14
113000 +10  977  R9FDE/P RN3DDW KO85 (x4)
134030  +5 2472  RN3DDW DM2DXA +08 (x2)

160m

UTC    dB Audio  Message
203345 -24 1907  <...> RN3DDW KO84 (x2)
205030 -15 1248  RN3DDW DK2CC JO63

10m

UTC    dB Audio  Message
105600 -17 1114  RN3DDW RX3ASQ KO95
105730 -24 1915  RN3DDW UA7T LN05
111615 -13 2526  CQ RN3DDW KO85
111945 -15 2526  R6LFO RN3DDW -04
113630  -3 1114  RN3DDW RX3ASQ KO95
113715 -17 2525  CQ RN3DDW KO85                        a1 (x7)
122130 -12 1778  RN3DDW F4FSY -16 (x2)
093930  -8 1376  RN3DDW R6MO RR73

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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