RZ3DAB — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving RZ3DAB, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-10 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 94 FT8 messages attributed to RZ3DAB as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (36%), followed by 10 m (32%) and 80 m (29%). Most decodes (100%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was -3 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

80m · 27 40m · 34 20m · 3 10m · 30

First attributed message: 2026-07-10
Last attributed message: 2026-09-18 21:03 UTC

Observed FT8 message patterns

Attributed sample: 94 messages
Active dates: 5 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -8 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 86.

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 RZ3DAB in decoded directed-looking exchanges:

OK1UOZ · Czech Republic ×2 DL3NGN · Fed. Rep. of Germany HG8LXL · Hungary LB5WB · Norway M0BEW · England RC6OZ · European Russia RN6MA · European Russia E70SZ · Bosnia-Herzegovina ON4ASV · Belgium DL7ACA · Fed. Rep. of Germany HF7X · Poland IN3LHF · Italy

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 RZ3DAB

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 · 46 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,309 km (approx.)
Last such locator decoded: 2026-09-18 21:03 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	RZ3DAB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 21:01	80m	- / -	9A4ZM	+10 / -	2	Partial capture
09-18 21:00	80m	- / -	SP2KW	-2 / -	2	Partial capture
09-18 20:58	80m	+2 / -2	DK7ZT	0 / -12	13	✓ Full exchange observed
09-12 22:21	80m	0 / -	R7KKO	- / -9	2	✓ Closing fragment
09-12 22:21	80m	- / -	ON4MAP	-12 / -	4	Partial capture
09-12 22:20	80m	- / -	DO2HC	-10 / -	2	Partial capture
09-12 22:19	80m	-2 / -8	OK1UOZ	+9 / -10	5	✓ Full exchange observed
09-12 22:17	80m	+1 / +5	EW8CW	+2 / -1	4	✓ Full exchange observed
09-12 22:15	80m	0 / -1	YO6LM	+8 / -6	5	✓ Full exchange observed
09-12 22:06	40m	-4 / -	HG8LXL	- / -13	3	Partial capture
09-12 22:01	40m	-6 / -	HF7X	- / -14	2	✓ Closing fragment
09-12 21:57	40m	-7 / -15	R8CC	-15 / -9	6	✓ Closing observed
09-12 21:57	40m	-9 / 0	IN3LHF	+2 / -4	5	✓ Full exchange observed
09-12 21:54	40m	-8 / +8	PD7BDN	+1 / -3	6	✓ Full exchange observed
09-12 21:52	40m	-6 / -4	ON1DGN	-7 / -3	5	✓ Full exchange observed
09-12 21:51	40m	-1 / -7	DL7ACA	+4 / -14	5	✓ Full exchange observed
07-14 17:11	20m	- / -	EA1IOK	-9 / -	2	Partial capture
07-12 17:24	10m	-4 / -	SV1SSL	- / -14	2	Partial capture
07-12 17:22	10m	0 / -	M0BEW	-10 / -12	3	✓ Closing observed
07-12 17:21	10m	-6 / -	RC6OZ	- / -15	2	✓ Closing fragment
07-12 17:19	10m	- / -	DN9AD	-16 / -	2	Partial capture
07-12 17:18	10m	-4 / -14	RZ6CO	-21 / -2	2	Partial capture
07-12 17:18	10m	-1 / -	HG8LXL	- / -10	2	✓ Closing fragment
07-12 17:16	10m	-2 / -	DL3NGN	- / -10	2	✓ Closing fragment
07-12 17:14	10m	0 / 0	RN6MA	-8 / -1	4	✓ Full exchange observed
07-12 17:12	10m	-3 / -	LB5WB	- / -13	3	✓ Closing fragment
07-10 17:29	20m	- / -	R2AL	-14 / -	2	Partial capture
07-05 17:42	20m	- / -12	G4DBW	-20 / -	2	Partial capture
07-05 17:39	20m	- / -	IK4LZH	-2 / -	3	Partial capture
07-05 17:38	20m	- / -3	ON4ASV	0 / -	3	✓ Closing fragment
07-05 17:33	20m	- / -15	PE9JAN	-10 / -	3	Partial capture
07-05 17:29	20m	- / -	ON4ASV	-5 / -	4	Partial capture
07-05 17:27	20m	- / +4	E70SZ	-6 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
210000  -2 1056  RZ3DAB SP2KW JO92
210000  -7 1149  RZ3DAB DK7ZT R-02
210015  +8 1056  DK7ZT RZ3DAB -20
210030  -2 1056  RZ3DAB SP2KW JO92
210030  -3 1149  RZ3DAB DK7ZT R-02
210045  -3 1056  DK7ZT RZ3DAB -20
210100  +2 1149  RZ3DAB DK7ZT R-02
210115  +6 1056  DK7ZT RZ3DAB RR73
210130  +6 1149  RZ3DAB DK7ZT 73
210130 +13 1051  RZ3DAB 9A4ZM JN86 (x2)
210230  -4 1054  CQ RZ3DAB KO95                        a1 (x2)
210345  -2  322  RZ3DAB UB3ADO/P KO95
210515  -3 2352  RZ3DAB IQ4JO JN63

40m

UTC    dB Audio  Message
220115  -7 2384  CQ RZ3DAB KO95
220145  -6 2384  HF7X RZ3DAB -14 (x2)
220245  -6 2384  CQ RZ3DAB KO95 (x3)
220400  -3 2383  RZ3DAB RA9MI -05
220545  -1 2384  CQ RZ3DAB KO95
220615  -6 2383  HG8LXL RZ3DAB -13 (x3)
220745  -6 2384  CQ RZ3DAB KO95
220845  -2 2384  OK1AYM RZ3DAB RR73
220915  -2 2384  CQ RZ3DAB KO95 (x2)

20m

UTC    dB Audio  Message
173915  -2  463  RZ3DAB IK4LZH JN54
173915 -24 1656  RZ3DAB EA5JKT R-08
173945  +0  463  RZ3DAB IK4LZH JN54 (x2)
174200 -19 2304  RZ3DAB G4DBW JO01 (x2)
172730  -7  841  CQ RZ3DAB KO95 (x3)
172845 -14  844  RZ3DAB YO4NF -01
172945 -16  952  RZ3DAB R2AL KO85 (x2)
171145 -24 1916  RZ3DAB TA3ZGR -22
171145  -7  571  RZ3DAB EA1IOK IN62 (x2)

10m

UTC    dB Audio  Message
172100  -5  939  RZ3DAB RA5AK -14
172100 -14 1495  RZ3DAB DN9AD JO52
172115  -4  940  RC6OZ RZ3DAB -15 (x2)
172215  -3  941  CQ RZ3DAB KO95
172245  +1  941  M0BEW RZ3DAB -12
172300 -10  941  RZ3DAB M0BEW RR73
172315  +0  941  M0BEW RZ3DAB 73
172400  -1  942  CQ RZ3DAB KO95
172430  -5  941  SV1SSL RZ3DAB -14
172445  -6 1442  RZ3DAB R6OQ KN87
172600  -4  940  SV1SSL RZ3DAB -14
172630  -1  941  CQ RZ3DAB KO95 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee