IU3WZJ — 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: Italy

Receiver-side FT8 activity involving IU3WZJ, decoded by SO8OO in southeastern Poland. 123 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-12 and 2026-10-11.

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 123 FT8 messages attributed to IU3WZJ as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (66%), followed by 60 m (34%). Several six-hour UTC windows tied for the largest share (96%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was -1 dB.

Overview

123

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

60m · 42 40m · 81

First attributed message: 2026-09-12
Last attributed message: 2026-10-11 17:06 UTC

Observed FT8 message patterns

Attributed sample: 123 messages
Active dates: 6 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -9 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 107.

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 IU3WZJ in decoded directed-looking exchanges:

D2ACE · Angola 9K2MP · Kuwait DU3LA · Philippines EX7CQ · Kyrgyzstan F6FHZ · France HA1BF · Hungary LX1RFJ · Luxembourg OK2VCR · Czech Republic PA0LDE · Netherlands PD1AQL · Netherlands SM2OTU · Sweden UB9WPD · Asiatic 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.

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	IU3WZJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-11 17:05	60m	-3 / -	4U1A	- / -	2	Partial capture
10-11 17:01	60m	-9 / -	XB0CWB	- / +2	3	Partial capture
10-04 19:21	40m	- / -	DL7ACA	-1 / -	4	Partial capture
10-04 19:16	40m	+5 / -11	HA1BF	-4 / -10	10	✓ Full exchange observed
10-04 19:15	40m	+2 / -9	9K2MP	-11 / -9	5	✓ Full exchange observed
10-04 19:15	40m	- / -	IU5HIU	-9 / -	4	Partial capture
10-04 19:14	40m	+2 / -	F6FHZ	- / -13	2	✓ Closing fragment
10-04 19:13	40m	+7 / -	OK2VCR	- / -8	2	✓ Closing fragment
10-04 19:11	40m	+8 / -	PA0LDE	-11 / -3	4	✓ Full exchange observed
10-04 19:11	40m	- / -	F5PBG	-6 / -	2	Partial capture
10-04 19:11	40m	+1 / -	LX1RFJ	- / -	2	✓ Closing fragment
10-04 19:09	40m	+6 / -	PD1AQL	-8 / -10	2	✓ Closing observed
10-04 19:06	40m	+3 / -	EX7CQ	- / -6	3	✓ Closing fragment
10-03 14:01	10m	- / -8	D2ACE	-13 / -	3	✓ Closing fragment
09-27 20:50	40m	0 / -	ZC4OL	- / +2	13	Partial capture
09-27 20:46	60m	+1 / -	VE1YX	- / -20	2	Partial capture
09-27 20:45	60m	0 / -	GM4KHE	- / -12	2	✓ Closing fragment
09-27 20:41	60m	-1 / -	HA3FMR	- / -22	7	Partial capture
09-27 20:40	60m	-2 / +6	LZ1ZF	-14 / +8	4	✓ Full exchange observed
09-27 20:39	60m	-2 / -	ER1CW	- / +6	2	✓ Closing fragment
09-27 20:37	60m	-3 / +2	DK7ZT	-11 / +5	6	✓ Full exchange observed
09-27 20:36	60m	-1 / -	LA5DSA	- / -14	2	✓ Closing fragment
09-27 20:36	60m	-2 / +8	ON7GB	-1 / -	7	✓ Full exchange observed
09-27 20:34	60m	-1 / -5	G0OXO	-1 / -9	5	✓ Full exchange observed
09-27 20:34	60m	0 / -	DL5DQZ	- / -15	3	✓ Closing fragment
09-27 20:33	60m	0 / -	US2YW	- / -	2	✓ Closing fragment
09-27 20:31	60m	+1 / +2	F5PEG	-1 / +2	5	✓ Full exchange observed
09-27 20:30	60m	+2 / -	OZ5AGJ	-7 / -6	3	✓ Closing observed
09-27 20:29	60m	0 / -2	LA3ZPA	+1 / -6	4	✓ Full exchange observed
09-27 20:28	60m	-3 / -	CN8DN	-21 / -13	3	✓ Closing observed
09-26 21:23	40m	-6 / +8	SM2OTU	-10 / -8	5	✓ Full exchange observed
09-26 21:18	40m	-2 / -	VJ6X	- / -14	8	✓ Closing fragment
09-13 21:52	40m	-6 / -16	DU3LA	-12 / -12	5	✓ Full exchange observed
09-12 23:07	40m	-6 / -	D2ACE	- / +1	28	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
204200  +0 1263  HA3FMR IU3WZJ -22 (x6)
204545  -1 1262  GM4KHE IU3WZJ -12 (x2)
204645  +0 1263  VE1YX IU3WZJ -20 (x2)
170115  -8  990  XB0CWB IU3WZJ +02 (x3)
170530  -6  865  4U1A IU3WZJ +12 (x2)

10m

UTC    dB Audio  Message
140100 -12 2293  IU3WZJ D2ACE R-08 (x3)
135030 -14 2187  IU3WZJ TT1GD R-01

40m

UTC    dB Audio  Message
191715  +8 1443  HA1BF IU3WZJ -10 (x2)
191800  -5 1415  IU3WZJ HA1BF R-11
191900  +9 1443  UB9WPD IU3WZJ RR73
191915  -1 1595  IU3WZJ F5PBG IN78
191930  -3 1412  IU3WZJ HA1BF R-11 (x2)
192015  +5 1443  HA1BF IU3WZJ RR73
192030  -5 1412  IU3WZJ HA1BF R-11
192045  -2 1443  HA1BF IU3WZJ RR73
192100  -4 1412  IU3WZJ HA1BF 73
192100  -5 1444  IU3WZJ DL7ACA JO40 (x4)

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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