RZ3QN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO91

Receiver-side FT8 activity involving RZ3QN, decoded by SO8OO in southeastern Poland. 139 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-21.

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 139 FT8 messages attributed to RZ3QN as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (47%), followed by 20 m (29%) and 40 m (24%). Most decodes (61%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

139

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 34 20m · 40 10m · 65

First attributed message: 2026-06-06
Last attributed message: 2026-09-21 14:49 UTC

Observed FT8 message patterns

Attributed sample: 139 messages
Active dates: 29 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -22 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 52, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 46.

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 RZ3QN in decoded directed-looking exchanges:

DH1KJ · Fed. Rep. of Germany DN9SR · Fed. Rep. of Germany EA1FRB · Spain OK2XCG · Czech Republic R4IK · European Russia R6UA · European Russia RA1N · European Russia RA1PO · European Russia RA3LJ · European Russia RA7T · European Russia RD4HX · European Russia RK3AW · 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 RZ3QN

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: KO91 · 38 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,221 km (approx.)
Last such locator decoded: 2026-09-21 14:33 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	RZ3QN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 14:50	40m	- / -	UA7T	-8 / -	2	Partial capture
09-21 14:47	40m	-15 / -	RD0F	- / -20	3	Partial capture
09-21 14:33	40m	-16 / -	R3NAW	- / -9	3	✓ Closing fragment
09-21 13:53	40m	- / -19	HA1BF	+1 / -	2	✓ Closing fragment
09-18 04:41	40m	-10 / 0	RA6FSV	-17 / +2	4	✓ Full exchange observed
09-17 03:17	40m	-1 / -	EB2EMZ	- / -7	2	✓ Closing fragment
09-16 15:11	40m	- / -	R4PEQ	-13 / -	2	✓ Closing fragment
09-12 03:18	40m	-10 / -	J38LD	- / -16	3	Partial capture
09-12 03:16	40m	-6 / -	NU1T	- / -	2	Partial capture
09-10 03:28	40m	-7 / -	EA3AKY	-15 / +3	3	Partial capture
09-10 03:25	40m	-11 / -	6Y5HN	- / -11	2	Partial capture
09-08 06:05	40m	- / -	RA6LTD	-12 / -	2	✓ Closing fragment
08-21 03:24	40m	-10 / -	PV8AJ	- / -4	2	Partial capture
08-11 06:47	20m	- / -5	R50RKZ	-1 / -	2	Partial capture
08-10 06:29	10m	- / -17	R2EA	-10 / -	2	Partial capture
08-10 06:22	10m	-11 / -	UN3P	- / -7	2	Partial capture
08-09 05:05	20m	- / -1	RA7E	-1 / -	2	✓ Closing fragment
08-08 16:26	40m	- / +1	UA3GDJ	-13 / -	3	✓ Closing fragment
08-07 09:13	20m	-13 / -	F1PSX	- / -1	2	✓ Closing fragment
08-07 09:07	10m	-17 / -14	R6JY	-5 / -	2	Partial capture
07-24 07:52	10m	-10 / -	OK2XCG	- / -15	2	✓ Closing fragment
07-24 05:57	20m	-24 / -	EW7AS	- / -	2	✓ Closing fragment
07-23 13:32	20m	-22 / -	UA0ACG	- / -6	2	Partial capture
07-23 09:03	10m	- / -1	RV1CC	-7 / -	2	✓ Closing fragment
07-23 06:22	10m	- / -1	RA1N	-20 / -	2	✓ Closing fragment
07-20 06:05	10m	- / -16	RA3LCX	-16 / -	17	Partial capture
07-19 07:57	10m	- / -	UA3DPM	-16 / -	2	Partial capture
07-19 07:48	10m	-20 / -16	DN9SR	-6 / -	9	✓ Closing observed
07-17 07:19	20m	- / -5	R4FDW	-19 / -	4	Partial capture
06-27 06:21	10m	-15 / -	RA3LJ	- / +4	3	✓ Closing fragment
06-27 06:20	10m	-20 / -	SP6RW	- / +2	3	✓ Closing fragment
06-27 05:54	10m	-15 / -	RA1PO	- / -4	2	✓ Closing fragment
06-26 17:42	10m	-12 / -	RD4HX	- / -10	2	✓ Closing fragment
06-26 06:31	10m	-4 / +5	RA7T	-6 / +9	4	✓ Full exchange observed
06-26 06:31	10m	-4 / -	R6UA	- / -6	4	✓ Closing fragment
06-25 14:08	10m	-18 / -	DH1KJ	- / -2	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
044100 -15 1183  RZ3QN RA6FSV LN05
044115 -13 1768  RA6FSV RZ3QN +02
044130 -19 1183  RZ3QN RA6FSV R+00
044145  -7 1768  RA6FSV RZ3QN RR73
135330  +1 1272  RZ3QN HA1BF R-19 (x2)
135445 -24 1768  UA9ZBK RZ3QN KO91
143330 -17 1768  R3NAW RZ3QN KO91 (x3)
144715 -10 1768  RD0F RZ3QN -20 (x3)
145030  -9 1980  RZ3QN UA7T LN05 (x2)

20m

UTC    dB Audio  Message
055700 -17 1804  RZ3QN F4LNM JN09
055715 -24 1803  EW7AS RZ3QN +29 (x2)
055815 -24 1803  R9UBE RZ3QN R+14
082745 -17 1802  RV9UAF RZ3QN 73
083200 -19 1802  <...> RZ3QN KO91
055215 -16 1802  CQ RZ3QN KO91 (x2)
091300 -10 1802  F1PSX RZ3QN -01 (x2)
050530  +2 2836  RZ3QN RA7E -01 (x2)
064700  -3 1812  RZ3QN R50RKZ -05
064730 -18 2072  RZ3QN RZ6CO -07
064730  +1 1812  RZ3QN R50RKZ -05

10m

UTC    dB Audio  Message
090345  -6 2494  RZ3QN RV1CC 73
141100  -9 1809  KB2PIW RZ3QN -03
075045 -14 1814  CQ RZ3QN KO91
075115 -13 1813  IQ4JO RZ3QN +03
075215 -10 1814  OK2XCG RZ3QN -15 (x2)
090730 -17 1812  R6JY RZ3QN KO91
090915  -5 1678  RZ3QN R6JY -14
062245 -12 1813  UN3P RZ3QN -07 (x2)
062415 -22 1813  CQ RZ3QN KO91 (x2)
062730 -23 1814  RA9ACA RZ3QN -06
062915  -7 2138  RZ3QN R2EA -17 (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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