RX3DCZ — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO94

Receiver-side FT8 activity involving RX3DCZ, decoded by SO8OO in southeastern Poland. 800 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-08-22 and 2026-10-21.

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 800 FT8 messages attributed to RX3DCZ as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (95%), followed by 20 m (4%) and 80 m (1%). Most decodes (80%) fell within the six-hour window 23:00-05:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -5 dB.

Overview

800

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 4 40m · 762 20m · 34

First attributed message: 2026-08-22
Last attributed message: 2026-10-21 05:57 UTC

Observed FT8 message patterns

Attributed sample: 800 messages
Active dates: 12 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -14.8 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 60, moderate (-15 to -9 dB) 211, strong (≥ -8 dB) 529.

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 RX3DCZ in decoded directed-looking exchanges:

F1IQH · France ×2 F5IYE · France ×2 IK4LZH · Italy ×2 RZ4FWA · European Russia ×2 SV7BAY · Greece 3A2MW · Monaco DL4DD · Fed. Rep. of Germany EA7GHD · Spain HS0ZOY · Thailand IW5ALZ · Italy M0GQC · England OK2CNI · Czech Republic

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 RX3DCZ

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: KO94 · 510 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,273 km (approx.)
Last such locator decoded: 2026-10-21 05:56 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	RX3DCZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 06:03	40m	- / -9	DH5BM	-2 / -	3	✓ Closing fragment
10-21 06:00	40m	- / -15	G0BLB	+6 / -	4	✓ Closing fragment
10-21 05:57	40m	- / -6	EU4U	+10 / -	2	✓ Closing fragment
10-21 05:56	40m	-6 / -4	S57NCP	-12 / -17	5	✓ Full exchange observed
10-21 05:54	40m	-4 / -	RX9WM	- / -6	2	✓ Closing fragment
10-21 05:53	40m	-4 / -	RA1PO	- / -15	2	✓ Closing fragment
10-21 05:50	40m	- / -	F1DHX	-5 / -	2	Partial capture
10-21 05:48	40m	- / 0	OH5KNL	-4 / -	3	✓ Closing fragment
10-21 05:45	40m	-11 / -	RL3QGD	-9 / -1	5	✓ Full exchange observed
10-21 05:41	40m	- / -	GJ0KYZ	-6 / -	2	✓ Closing fragment
10-21 05:37	40m	-9 / -	EA1AHP	-19 / -18	2	Partial capture
10-21 05:37	40m	- / -	RL3QGD	-8 / -	4	Partial capture
10-21 05:36	40m	-11 / -	YL3QT	- / -20	2	✓ Closing fragment
10-21 05:33	40m	-9 / -	F6DZU	+1 / -22	2	✓ Closing observed
10-21 05:29	40m	-13 / -8	M9MRX	-14 / -	3	✓ Closing observed
10-21 05:29	40m	- / -	RL3QGD	-7 / -	2	Partial capture
10-21 05:27	40m	-10 / +4	I0KJX	-9 / -13	2	Partial capture
10-21 05:25	40m	-6 / -	YV6BXN	- / -	2	Partial capture
10-21 05:23	40m	-9 / -4	HB9ELE	+12 / -6	3	✓ Full exchange observed
10-21 05:22	40m	-4 / -5	RZ4FWA	-17 / -6	4	✓ Full exchange observed
10-21 05:21	40m	-3 / -14	CT2IGO	-6 / -	3	✓ Closing observed
10-21 05:19	40m	- / -3	IQ4JO	+4 / -	2	✓ Closing fragment
10-21 05:13	40m	- / -7	YO3OBB	-4 / -	2	✓ Closing fragment
10-21 05:09	40m	-6 / -16	F4ELU	-12 / -19	8	✓ Full exchange observed
10-21 05:07	40m	-13 / -13	RU3OH	-8 / -5	4	✓ Full exchange observed
10-21 05:07	40m	-15 / -	TA2VUZ	- / -23	2	✓ Closing fragment
10-21 05:05	40m	-9 / -	OH1LEG	- / 0	3	✓ Closing fragment
10-21 05:04	40m	-14 / -	R6ADH	- / -8	2	✓ Closing fragment
10-21 05:02	40m	-12 / -	OE1HLB	- / -	2	✓ Closing fragment
10-21 04:59	40m	- / -5	YO3GNF	0 / -	4	✓ Closing fragment
10-21 04:56	40m	-14 / -	IK4LZH	- / -	4	✓ Closing fragment
10-21 04:54	40m	- / -	UI6O	-15 / -	8	Partial capture
10-21 04:53	40m	-11 / -	F4MXT/P	- / -	3	Partial capture
10-21 04:50	40m	-6 / -	R6ZAJ	- / -8	4	Partial capture
10-21 04:49	40m	-12 / -	SP5KG	- / -6	2	✓ Closing fragment
10-21 04:45	40m	-6 / -	YV6BXN	- / -	4	Partial capture
10-18 04:04	80m	-14 / -14	F4CTJ	+3 / -21	9	✓ Full exchange observed
09-20 06:16	40m	- / -2	SP4MPH	+3 / -	2	✓ Closing fragment
09-19 03:53	40m	-13 / -	HK3W	- / -	2	Partial capture
09-19 03:43	40m	-13 / -	HK3W	- / -	9	Partial capture
09-19 03:05	40m	-4 / -	HK3W	- / -	43	Partial capture
09-19 03:02	40m	+2 / -	LZ2BC	- / -8	6	✓ Closing fragment
09-19 03:01	40m	- / -	RM5F	-4 / -	2	Partial capture
09-19 03:01	40m	0 / -	DL9KM	- / -13	2	✓ Closing fragment
09-19 02:59	40m	+1 / -	IZ8PPI	- / -19	3	✓ Closing fragment
09-19 02:57	40m	+1 / +2	RX6DA	-3 / +2	5	✓ Full exchange observed
09-19 02:56	40m	+2 / -	R4HNW	-4 / -1	5	✓ Full exchange observed
09-19 02:54	40m	+4 / -	TA5DOB	- / -14	3	✓ Closing fragment
09-19 02:53	40m	+6 / -	YO8XFU	- / -3	2	✓ Closing fragment
09-19 02:52	40m	-12 / -	NP4EB	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
055600  -1  724  S57NCP RX3DCZ KO94
055615 -11 1933  RX3DCZ S57NCP -04
055630 -10  724  S57NCP RX3DCZ R-17
055645 -12 1932  RX3DCZ S57NCP RR73
055700  -7  724  S57NCP RX3DCZ 73
055745  +9 2853  RX3DCZ EU4U -06 (x2)
060015  +6  511  RX3DCZ G0BLB IO81 (x4)
060315  +0  724  RX3DCZ DH5BM JO41 (x3)
060545 -13 1500  RX3DCZ YL3ASK -09

80m

UTC    dB Audio  Message
040445 -19 1038  F4CTJ RX3DCZ KO94
040500  +4 1039  RX3DCZ F4CTJ -14 (x2)
040545 -18 1038  F4CTJ RX3DCZ R-21
040600  +4 1039  RX3DCZ F4CTJ RR73
040615 -11 1038  F4CTJ RX3DCZ R-21 (x2)
040800  +0 1039  RX3DCZ F4CTJ +00 (x2)

20m

UTC    dB Audio  Message
204430  -7 1469  RX3DCZ EA7GHD -15 (x2)
205130 -15 1882  RX3DCZ EA5KB -18
205600  -4 2215  RX3DCZ IQ4JO R+03
205700  -2  620  RX3DCZ F1IQH JN27 (x3)
210200  -8 2897  RX3DCZ IW5ALZ 73
210800 -11 2078  RX3DCZ M0GQC -19 (x3)
212830 -16  621  RX3DCZ M8NDF -07
213830 -14 1637  RX3DCZ JY5IB -12
214630 -11 1078  RX3DCZ 9K2MP -03
214630 -24 1792  RX3DCZ 2E0UMF -11

10m

UTC    dB Audio  Message
131345 -15  927  RX3DCZ SV7BAY -05 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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