RW3DDZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO86

Receiver-side FT8 activity involving RW3DDZ, decoded by SO8OO in southeastern Poland. 3,567 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 95 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-04.

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 3,567 FT8 messages attributed to RW3DDZ as the transmitting token by decoded message structure across 95 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 20 m (22%) and 10 m (6%). Most decodes (89%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11.2 dB.

Overview

3,567

Messages attributed

UTC dates decoded

492

Active 15-min windows

-11.2 dB

Estimated median S/N

Bands

40m · 2,552 20m · 798 10m · 217

First attributed message: 2026-06-06
Last attributed message: 2026-10-04 20:21 UTC

Observed FT8 message patterns

Attributed sample: 3,567 messages
Active dates: 95 UTC dates
Estimated median S/N: -11.2 dB
Estimated 10th-90th percentile: -20 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,044, moderate (-15 to -9 dB) 1,304, strong (≥ -8 dB) 1,219.

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 RW3DDZ in decoded directed-looking exchanges:

R4ADD · European Russia ×4 R3DMX · European Russia ×4 M7HET · England ×3 RW6AP · European Russia ×3 DL2VN · Fed. Rep. of Germany ×2 DM8KM · Fed. Rep. of Germany ×2 EA1HFI · Spain ×2 F4NJZ · France ×2 IK4LZH · Italy ×2 LZ2BC · Bulgaria ×2 M0KZC/P · England ×2 PD0RCQ · Netherlands ×2

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 RW3DDZ

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: KO86 · 2,753 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,244 km (approx.)
Last such locator decoded: 2026-10-04 20:21 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	RW3DDZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 20:14	40m	-4 / -4	DL1GLO	0 / -7	4	✓ Full exchange observed
10-04 20:14	40m	-8 / -2	RK3YWS/P	-10 / -	12	Partial capture
10-04 18:43	40m	-13 / -10	IU8TSR	+1 / -16	5	✓ Full exchange observed
10-04 18:41	40m	-15 / -	MX0SQC	- / -14	3	✓ Closing fragment
10-04 16:15	40m	-13 / -	IQ2AAH	- / -9	3	✓ Closing fragment
10-04 16:14	40m	-14 / -10	R3ZBY	-2 / -	3	✓ Closing observed
10-04 16:04	40m	-13 / -	RN3KY	- / +8	2	Partial capture
10-04 16:02	40m	-14 / -6	F4GHN	-1 / -7	5	✓ Full exchange observed
10-04 15:50	40m	-14 / -	RO2E/P	- / -	18	Partial capture
10-04 15:44	40m	-16 / -	EU7DBF	- / -17	7	Partial capture
10-04 15:42	40m	-16 / -	R8ACF	- / -9	2	✓ Closing fragment
10-04 15:37	40m	- / -2	OH3MB	0 / -	3	Partial capture
10-04 15:27	40m	-13 / -	UB3LCH	- / -	3	Partial capture
10-04 15:24	40m	-15 / -	UB3BHW	- / -	5	Partial capture
10-02 21:45	40m	+1 / -15	G0RWF	-9 / -8	8	✓ Full exchange observed
10-02 21:33	40m	- / -12	M7HET	-3 / -	3	✓ Closing fragment
10-02 21:21	40m	- / -	M7HET	-8 / -	3	Partial capture
10-02 21:17	40m	-6 / -	SP8MZB	- / -	2	Partial capture
10-02 21:16	40m	-7 / -	YT2TW	- / -10	3	Partial capture
10-02 21:14	40m	-5 / -14	F5LQ	-2 / -	4	✓ Closing observed
10-02 21:06	40m	-10 / -	SP9BBA	- / -11	3	✓ Closing fragment
10-02 21:05	40m	-7 / -	EA2ABD	- / -	7	Partial capture
10-02 20:57	40m	-17 / -4	HB9IIH	+7 / -12	5	✓ Full exchange observed
10-02 19:02	40m	-17 / -14	DL1NB	-11 / -22	4	✓ Full exchange observed
10-02 19:02	40m	- / -	PD1BB	-19 / -	2	Partial capture
10-02 18:54	40m	- / -8	DD3ZZ	-10 / -	2	Partial capture
10-02 18:51	40m	-10 / -	HA5LB	- / -13	2	✓ Closing fragment
10-02 18:50	40m	-2 / -	UB3ADO/P	- / -	2	Partial capture
10-02 18:47	40m	-13 / -	DG6ITP	- / -	5	Partial capture
10-02 18:45	40m	-16 / -9	IK2SND	+5 / -15	5	✓ Full exchange observed
10-02 18:44	40m	-19 / -	DK1SF	- / -	3	Partial capture
10-02 18:32	40m	-12 / -	YO2LFP	- / -6	2	Partial capture
10-02 18:30	40m	-16 / -1	9A5AZK	-10 / -	3	✓ Closing observed
10-02 18:18	40m	-10 / -3	S52CQ	0 / -	6	✓ Closing observed
10-02 18:14	40m	-12 / -	RK6OU	- / -	5	Partial capture
10-02 18:13	40m	-9 / -	SP3EIE	- / -4	2	✓ Closing fragment
10-02 18:09	40m	-14 / -	IQ2AAH	- / -	5	Partial capture
10-02 17:59	40m	-15 / -6	TM4GGR	-2 / -10	6	✓ Full exchange observed
10-01 21:38	40m	-6 / -	9H1SR	- / -	2	Partial capture
10-01 21:36	40m	-3 / -	CT1FIU	- / -	3	Partial capture
10-01 21:34	40m	-9 / -	YT1EB	- / -	2	Partial capture
10-01 21:32	40m	-10 / -	CT1FIU	- / -	2	Partial capture
10-01 21:31	40m	-10 / -	CT2GQA	- / -	2	Partial capture
10-01 21:28	40m	-12 / -16	IT9IWD	-17 / -16	7	✓ Full exchange observed
10-01 21:20	40m	-22 / -9	M7HET	-16 / -	4	✓ Closing observed
10-01 21:18	40m	-9 / -	F4FYO	-12 / -9	5	✓ Closing observed
10-01 21:16	40m	-14 / -6	G7KHF	-14 / -4	4	✓ Full exchange observed
10-01 21:13	40m	-8 / -14	HB9ZHK	-10 / -13	6	✓ Full exchange observed
10-01 21:11	40m	- / -19	I8/ON8SGA	+2 / -	3	Partial capture
10-01 21:10	40m	-10 / -7	F4FYO	-14 / -9	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
201445  -1 1935  RW3DDZ DL1GLO JN47
201500  -3 2190  DL1GLO RW3DDZ -07
201515  +2 1935  RW3DDZ DL1GLO R-04
201530  -5 2190  DL1GLO RW3DDZ RR73
201600 -11 2190  RK3YWS/P RW3DDZ KO86 (x7)
202015 -10  468  RW3DDZ RK3YWS/P -02
202030  -5 2190  RK3YWS/P RW3DDZ KO86
202045 -11  468  RW3DDZ RK3YWS/P -21
202100  -8 2190  RK3YWS/P RW3DDZ KO86

20m

UTC    dB Audio  Message
180030  +8 2289  CQ RW3DDZ KO86 (x8)
180500 +10 2289  YO3CLD RW3DDZ -19 (x2)
180600  +7 2289  CQ RW3DDZ KO86 (x2)
180730  -1 2289  LZ1VDK RW3DDZ KO86 (x3)

10m

UTC    dB Audio  Message
150630 -13 1341  RW3DDZ DO4RP JO31
151100  -9  765  RW3DDZ RR73; DL2AOM <...> -14
152600  +0  538  RW3DDZ DG0OME R-15 (x2)
153230  -6 1194  RW3DDZ DN9DSP JO31 (x3)
123800 -20 1967  RW3DDZ F4IDN IN97 (x3)
114700 -21 1515  RW3DDZ RV6F R-07
074930 -13 1770  RW3DDZ LZ2CC -10 (x2)
092930 -15 1739  RW3DDZ CU2AP -15 (x2)

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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